-
Chemical structure and antifouling activity of yoshioaplysins A–C isolated from red alga genus Laurencia
Ryosuke Fukada, Keisuke Nishikawa, Misaki Nagasaka, Masayuki Kirihara, Shinobu Takizawa, Yoshiki Morimoto, Kazumi Nimura, Norio Kikuchi, Yukimasa Yamagishi, Takahiro Ishii, Takashi Kamada
Fitoterapia Vol. 185 p. 106683-106683 2025年9月 研究論文(学術雑誌)
出版者・発行元:Elsevier BV
-
Few Steps, Big Impact: Recent Advances in the Streamlined Synthesis of Multiply Chiral Heterohelicenes with Tunable Optoelectronic Properties
Mohamed S. H. Salem, Shinobu Takizawa
Chemistry–Methods 2025年7月2日 研究論文(学術雑誌)
-
Cyanomethylation of Aldehydes on an Electrochemical Microflow System and Utility of Machine Learning‐Assisted Examination of the Reaction Conditions
Eisuke Sato, Akine Tani, Tomoyuki Miyao, Shumpei Kunimoto, Shinobu Takizawa, Koichi Mitsudo, Seiji Suga
Chemistry – A European Journal 2025年7月2日 研究論文(学術雑誌)
-
Design of Experiments Algorithm for Comprehensive Exploration and Rapid Optimization in Chemical Space
Kazuhiro Takeda, Masaru Kondo, Muthu Karuppasamy, Mohamed S. H. Salem, Shinobu Takizawa
Systems and Control Transactions Vol. 4 p. 1318-1323 2025年7月1日 研究論文(国際会議プロシーディングス)
出版者・発行元:PSE Press
-
Electrochemical cascade access to hetero[8]circulenes as potent organophotocatalysts for diverse C–X bond formations
Ahmed S. Gabr, Mohamed S. H. Salem, Md. Imrul Khalid, Ryota Takahashi, Yoshihiro Nishimoto, Makoto Yasuda, Shinobu Takizawa
Nature Communications Vol. 16 2025年7月1日 研究論文(学術雑誌)
-
Unexpected Surprise in the Reactions of Acetals and Trialkylsilyl Chloride (R3SiCl): Efficient Deprotection of Aromatic Acyclic Acetals
Muthu Karuppasamy, Ishani Uditha Wedage, Mohamed S. H. Salem, Koji Morimoto, Shinobu Takizawa, Hiromichi Fujioka
Chemical and Pharmaceutical Bulletin Vol. 73 No. 4 p. 396-400 2025年4月23日 研究論文(学術雑誌)
出版者・発行元:Pharmaceutical Society of Japan
-
Tandem Photocatalyst‐Free Visible Light Aryl Azidation‐Intramolecular C−H Amination: One‐Pot Access to Carbazoles and Indoles from Areneazo‐2‐(2‐nitro)propanes
Dilip V. Patil, Rahulkumar Patel, Shinobu Takizawa, Hun Y. Kim, Kyungsoo Oh
Advanced Synthesis & Catalysis Vol. 367 2025年2月18日 研究論文(学術雑誌)
-
Remodelling molecular frameworks via atom-level surgery: recent advances in skeletal editing of (hetero)cycles
Rubal Sharma, Mitsuhiro Arisawa, Shinobu Takizawa, Mohamed S. H. Salem
Organic Chemistry Frontiers Vol. 12 No. 5 p. 1633-1670 2025年1月 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
-
Visible Light-Induced Radical Cascade Functionalization of Quinoxalin-2(1H)-ones: Three-Component 1,2-Di(hetero)arylation Approach with Styrenes and Thianthrenium Salts
Sudip Sau, Shinobu Takizawa, Hun Young Kim, Kyungsoo Oh
Organic Letters Vol. 26 No. 41 p. 8821-8826 2024年10月9日 研究論文(学術雑誌)
出版者・発行元:American Chemical Society (ACS)
-
Green and Efficient Protocols for the Synthesis of Sulfonyl Fluorides Using Potassium Fluoride as the Sole Fluorine Source
Sho Yamahara, Mohamed S. H. Salem, Takuma Kawai, Mai Watanabe, Yugo Sakamoto, Tomohide Okada, Yoshikazu Kimura, Shinobu Takizawa, Masayuki Kirihara
ACS Sustainable Chemistry & Engineering Vol. 12 No. 32 p. 12135-12142 2024年7月16日 研究論文(学術雑誌)
出版者・発行元:American Chemical Society (ACS)
-
Electrochemical Carbon-Ferrier Rearrangement Using a Microflow Reactor and Machine Learning-Assisted Exploration of Suitable Conditions
Eisuke Sato, Gaku Tachiwaki, Mayu Fujii, Koichi Mitsudo, Takashi Washio, Shinobu Takizawa, Seiji Suga
Organic Process Research & Development 2024年5月17日 研究論文(学術雑誌)
-
In-silico-assisted derivatization of triarylboranes for the catalytic reductive functionalization of aniline-derived amino acids and peptides with H2
Yusei Hisata, Takashi Washio, Shinobu Takizawa, Sensuke Ogoshi, Yoichi Hoshimoto
Nature Communications Vol. 15 No. 1 2024年5月7日 研究論文(学術雑誌)
出版者・発行元:Springer Science and Business Media LLC
-
Impact of helical elongation of symmetric oxa[n]helicenes on their structural, photophysical, and chiroptical characteristics
Mohamed S. H. Salem, Rubal Sharma, Seika Suzuki, Yoshitane Imai, Mitsuhiro Arisawa, Shinobu Takizawa
Chirality Vol. 36 No. 5 2024年5月2日 研究論文(学術雑誌)
出版者・発行元:Wiley
-
Bayesian optimization assisted screening conditions for visible light-induced hydroxy-perfluoroalkylation
Koto Tagami, Masaru Kondo, Shinobu Takizawa, Nobuyuki Mase, Tomoko Yajima
Journal of Fluorine Chemistry Vol. 276 p. 110294-110294 2024年5月 研究論文(学術雑誌)
出版者・発行元:Elsevier BV
-
Product Selectivity Control under Acidic and Basic Conditions on Oxidative Transformation of 1,3-Dicarbonyls Using Sodium Hypochlorite Pentahydrate
Masayuki Kirihara, Shinobu Takizawa, Yugo Sakamoto, Takumi Tanaka, Takuma Kawai, Tomohide Okada, Yoshikazu Kimura
Synthesis Vol. 56 No. 12 p. 1873-1880 2024年2月2日 研究論文(学術雑誌)
出版者・発行元:Georg Thieme Verlag KG
-
Synthesis and Structural and Optical Behavior of Dehydrohelicene-Containing Polycyclic Compounds
Md. Khalid, Mohamed Salem, Shinobu Takizawa
Molecules Vol. 29 No. 2 p. 296-296 2024年1月5日 研究論文(学術雑誌)
出版者・発行元:MDPI AG
-
Theoretical Study on the Relationship between Circular Dichroism and Circularly Polarized Luminescence in Oxaza[7]dehydrohelicene Derivatives
Masaya FUJIWARA, Mikito FUJINAMI, Mohamed S. H. SALEM, Shinobu TAKIZAWA, Hiromi NAKAI
Journal of Computer Chemistry, Japan 2024年 研究論文(学術雑誌)
-
Selective recognition between aromatics and aliphatics by cage-shaped borates supported by a machine learning approach
Yuya Tsutsui, Issei Yanaka, Kazuhiro Takeda, Masaru Kondo, Shinobu Takizawa, Ryosuke Kojima, Akihito Konishi, Makoto Yasuda
Organic & Biomolecular Chemistry 2024年 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
-
Light-induced autoxidation of aldehydes to peracids and carboxylic acids
Mohamed S. H. Salem, Carla Dubois, Yuya Takamura, Atsuhito Kitajima, Takuma Kawai, Shinobu Takizawa, Masayuki Kirihara
Green Chemistry Vol. 26 No. 1 p. 375-383 2024年 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
-
Data-driven Electrochemical One-pot Synthesis of Double Hetero[7]dehydrohelicene
Mohamed S. H. SALEM, Rubal SHARMA, Md. Imrul KHALID, Meghna SASI, Ryo AMASAKI, Yoshitane IMAI, Mitsuhiro ARISAWA, Shinobu TAKIZAWA
Electrochemistry Vol. 91 No. 11 p. 112015-112015 2023年11月28日 研究論文(学術雑誌)
出版者・発行元:The Electrochemical Society of Japan
-
Antifouling Brominated Diterpenoids from Japanese Marine Red Alga Laurencia venusta Yamada.
Ryosuke Fukada, Yukimasa Yamagishi, Misaki Nagasaka, Daiki Osada, Kazumi Nimura, Iori Oshima, Kazuki Tsujimoto, Masayuki Kirihara, Shinobu Takizawa, Norio Kikuchi, Takahiro Ishii, Takashi Kamada
Chemistry & biodiversity 2023年7月19日 研究論文(学術雑誌)
-
Bayesian Optimization-Assisted Screening to Identify Improved Reaction Conditions for Spiro-Dithiolane Synthesis
Masaru Kondo, Hettiarachchige Dona Piyumi Wathsala, Kazunori Ishikawa, Daisuke Yamashita, Takeshi Miyazaki, Yoji Ohno, Hiroaki Sasai, Takashi Washio, Shinobu Takizawa
Molecules Vol. 28 No. 13 p. 5180-5180 2023年7月3日 研究論文(学術雑誌)
出版者・発行元:MDPI AG
-
Photoswitchable Chiral Organocatalysts: Photocontrol of Enantioselective Reactions
Masaru Kondo, Kento Nakamura, Chandu G. Krishnan, Hiroaki Sasai, Shinobu Takizawa
The Chemical Record 2023年4月3日 研究論文(学術雑誌)
出版者・発行元:Wiley
-
Two-pot synthesis of unsymmetrical hetero[7]helicenes with intriguing optical properties
Mohamed S.H. Salem, Md Imrul Khalid, Hiroaki Sasai, Shinobu Takizawa
Tetrahedron Vol. 133 2023年3月3日 研究論文(学術雑誌)
-
Electrochemical Synthesis of Hetero[7]helicenes Containing Pyrrole and Furan Rings via an Oxidative Heterocoupling and Dehydrative Cyclization Sequence
Mohamed S.H. Salem, Md Imrul Khalid, Makoto Sako, Keigo Higashida, Charlie Lacroix, Masaru Kondo, Ryo Takishima, Taisei Taniguchi, Masahiro Miura, Giang Vo-Thanh, Hiroaki Sasai, Shinobu Takizawa
Advanced Synthesis and Catalysis Vol. 365 No. 3 p. 373-380 2023年2月7日 研究論文(学術雑誌)
-
Light-controlled pKa Value of Chiral Brønsted Acid Catalysts in Enantioselective Aza-Friedel–Crafts Reaction
Chandu G. Krishnan, Masaru Kondo, Osamu Yasuda, Duona Fan, Kento Nakamura, Yoshitomo Wakabayashi, Hiroaki Sasai, Shinobu Takizawa
Chemical Communications 2023年 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
-
Metal-Free Aerobic C–N Bond Formation of Styrene and Arylamines via Photoactivated Electron Donor–Acceptor Complexation
Duona Fan, Ahmed Sabri, Hiroaki Sasai, Shinobu Takizawa
Molecules Vol. 28 No. 1 2023年1月 研究論文(学術雑誌)
-
Electrochemical synthesis of heterodehydro[7]helicenes
Md. Imrul Khalid, Mohamed S. H. Salem, Makoto Sako, Masaru Kondo, Hiroaki Sasai, Shinobu Takizawa
Communications Chemistry Vol. 5 No. 1 2022年12月3日 研究論文(学術雑誌)
出版者・発行元:Springer Science and Business Media LLC
-
Bayesian optimization-driven parallel-screening of multiple parameters for the flow synthesis of biaryl compounds
Masaru Kondo, H. D.P. Wathsala, Mohamed S.H. Salem, Kazunori Ishikawa, Satoshi Hara, Takayuki Takaai, Takashi Washio, Hiroaki Sasai, Shinobu Takizawa
Communications Chemistry Vol. 5 No. 1 2022年12月 研究論文(学術雑誌)
-
Two-Step Synthesis, Structure, and Optical Features of a Double Hetero[7]helicene
Mohamed S.H. Salem, Ahmed Sabri, Md Imrul Khalid, Hiroaki Sasai, Shinobu Takizawa
Molecules Vol. 27 No. 24 2022年12月 研究論文(学術雑誌)
-
Atroposelective Synthesis of C-C Axially Chiral Compounds via Mono- and Dinuclear Vanadium Catalysis
Ankit Kumar, Hiroaki Sasai, Shinobu Takizawa
Accounts of Chemical Research Vol. 55 No. 20 p. 2949-2965 2022年10月18日 研究論文(学術雑誌)
-
Photoswitchable Chiral Cation-Binding Catalyst: Photocontrol of Catalytic Activity on Enantioselective Aminal Synthesis
Chandu G. Krishnan, Masaru Kondo, Kento Nakamura, Hiroaki Sasai, Shinobu Takizawa
Organic Letters Vol. 24 No. 14 p. 2670-2674 2022年4月15日 研究論文(学術雑誌)
出版者・発行元:American Chemical Society (ACS)
-
Metal-free C(aryl)–P bond cleavage: experimental and computational studies of the Michael addition/aryl migration of triarylphosphines to alkynyl esters
Makoto Sako, Kyohei Kanomata, Mohamed S. H. Salem, Tomohiro Furukawa, Hiroaki Sasai, Shinobu Takizawa
Organic Chemistry Frontiers Vol. 9 No. 8 p. 2187-2192 2022年3月 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry ({RSC})
-
Bayesian optimization with constraint on passed charge for multiparameter screening of electrochemical reductive carboxylation in a flow microreactor
Yuki Naito, Masaru Kondo, Yuto Nakamura, Naoki Shida, Kazunori Ishikawa, Takashi Washio, Shinobu Takizawa, Mahito Atobe
Chemical Communications Vol. 58 No. 24 p. 3893-3896 2022年2月 研究論文(学術雑誌)
-
DAST-mediated ring-opening of cyclopropyl silyl ethers in nitriles: facile synthesis of allylic amides via a Ritter-type process
Masayuki Kirihara, Riho Nakamura, Kana Nakakura, Kazuki Tujimoto, Mohamed S. H. Salem, Takeyuki Suzuki, Shinobu Takizawa
Organic & Biomolecular Chemistry Vol. 20 No. 33 p. 6558-6561 2022年 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
-
Application of an Electrochemical Microflow Reactor for Cyanosilylation: Machine Learning-Assisted Exploration of Suitable Reaction Conditions for Semi-Large-Scale Synthesis
Eisuke Sato, Mayu Fujii, Hiroki Tanaka, Koichi Mitsudo, Masaru Kondo, Shinobu Takizawa, Hiroaki Sasai, Takeshi Washio, Kazunori Ishikawa, Seiji Suga
The Journal of Organic Chemistry Vol. 86 No. 22 p. 16035-16044 2021年11月19日 研究論文(学術雑誌)
出版者・発行元:American Chemical Society (ACS)
-
Chemo- and regioselective cross-dehydrogenative coupling reaction of 3-hydroxycarbazoles with arenols catalyzed by a mesoporous silica-supported oxovanadium
Kengo Kasama, Kyohei Kanomata, Yuya Hinami, Karin Mizuno, Yuta Uetake, Toru Amaya, Makoto Sako, Shinobu Takizawa, Hiroaki Sasai, Shuji Akai
RSC Advances Vol. 11 No. 56 p. 35342-35350 2021年11月 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
-
Chiral Vanadium(v)-catalyzed Oxidative Coupling of 4-Hydroxycarbazoles
Ganesh T. Kamble, Mohamed S. H. Salem, Tsukasa Abe, Hanseok Park, Makoto Sako, Shinobu Takizawa, Hiroaki Sasai
Chemistry Letters 2021年7月15日 研究論文(学術雑誌)
出版者・発行元:
-
Chemo- and enantioselective hetero-coupling of hydroxycarbazoles catalyzed by a chiral vanadium(v) complex
Makoto Sako, Keigo Higashida, Ganesh Tatya Kamble, Kevin Kaut, Ankit Kumar, Yuka Hirose, Da-Yang Zhou, Takeyuki Suzuki, Magnus Rueping, Tomohiro Maegawa, Shinobu Takizawa, Hiroaki Sasai
Organic Chemistry Frontiers Vol. 8 No. 17 p. 4878-4885 2021年6月 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
-
Azopyridine-based chiral oxazolines with rare-earth metals for photoswitchable catalysis
Kento Nakamura, Masaru Kondo, Chandu G. Krishnan, Shinobu Takizawa, Hiroaki Sasai
Chemical Communications Vol. 57 No. 60 p. 7414-7417 2021年6月 研究論文(学術雑誌)
-
Energy-, time-, and labor-saving synthesis of α-ketiminophosphonates: machine-learning-assisted simultaneous multiparameter screening for electrochemical oxidation
Masaru Kondo, Akimasa Sugizaki, Md. Imrul Khalid, H. D. P. Wathsala, Kazunori Ishikawa, Satoshi Hara, Takayuki Takaai, Takashi Washio, Shinobu Takizawa, Hiroaki Sasai
Green Chemistry Vol. 23 No. 16 p. 5825-5831 2021年6月 研究論文(学術雑誌)
-
Practical Stereoselective Synthesis of C3‐Spirooxindole‐ and C2‐Spiropseudoindoxyl‐Pyrrolidines via Organocatalyzed Pictet‐Spengler Reaction/Oxidative Rearrangement Sequence
Masaru Kondo, Naoki Matsuyama, Tin Z. Aye, Irshad Mattan, Tomoyuki Sato, Yoshinori Makita, Masami Ishibashi, Midori A. Arai, Shinobu Takizawa, Hiroaki Sasai
Advanced Synthesis & Catalysis Vol. 363 No. 10 p. 2648-2663 2021年5月18日 研究論文(学術雑誌)
出版者・発行元:Wiley
-
Chloroamidation of Alkenes Using Sodium Hypochlorite Pentahydrate and Its Application to Synthesis of Aziridines
Shinobu Takizawa, Masayuki Kirihara, Kouta Adachi, Yugo Sakamoto, Kazuki Tujimoto, Sho Yamahara, Ryoji Matsushima, Yukou Namba, Yoshikazu Kimura, Kosuke Sato, Takashi Kamada
HETEROCYCLES Vol. 103 No. 2 p. 699-699 2021年3月 研究論文(学術雑誌)
出版者・発行元:The Japan Institute of Heterocyclic Chemistry
-
Photoswitchable Chiral Phase Transfer Catalyst
Masaru Kondo, Kento Nakamura, Chandu G. Krishnan, Shinobu Takizawa, Tsukasa Abe, Hiroaki Sasai
ACS Catalysis Vol. 11 No. 3 p. 1863-1867 2021年2月5日 研究論文(学術雑誌)
-
Chapter 18. Vanadium-catalyzed Enantioselective C–C Bond-forming Reactions
Makoto Sako, Shinobu Takizawa, Hiroaki Sasai
Catalysis Series p. 446-463 2020年12月 論文集(書籍)内論文
出版者・発行元:Royal Society of Chemistry
-
Chiral vanadium complex-catalyzed oxidative coupling of arenols
Makoto Sako, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Vol. 76 No. 47 p. 131645-131645 2020年11月 研究論文(学術雑誌)
出版者・発行元:Elsevier BV
-
Erratum: Exploration of flow reaction conditions using machine-learning for enantioselective organocatalyzed Rauhut-Currier and [3+2] annulation sequence (Chem. Commun. (2020) 56 (1259-1262) DOI: 10.1039/C9CC08526B)
Masaru Kondo, H. D.P. Wathsala, Makoto Sako, Yutaro Hanatani, Kazunori Ishikawa, Satoshi Hara, Takayuki Takaai, Takashi Washio, Shinobu Takizawa, Hiroaki Sasai
Chemical Communications Vol. 56 No. 81 2020年10月18日 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry
-
Vanadium(V) Complex-Catalyzed One-Pot Synthesis of Phenanthridines via a Pictet-Spengler-Dehydrogenative Aromatization Sequence
Makoto Sako, Romain Losa, Tomohiro Takiishi, Giang Vo-Thanh, Shinobu Takizawa, Hiroaki Sasai
Catalysts Vol. 10 No. 8 p. 860-860 2020年8月2日 研究論文(学術雑誌)
出版者・発行元:MDPI AG
-
Catalytic and enantioselective oxa-Piancatelli reaction using a chiral vanadium complex
Lukas Schober, Makoto Sako, Shinobu Takizawa, Harald Gröger, Hiroaki Sasai
Chemical Communications 2020年7月 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry ({RSC})
-
Synthesis of Allylamine Derivatives via Intermolecular Aza-Wacker-Type Reaction Promoted by Palladium-SPRIX Catalyst
Abhijit Sen, Linpeng Zhu, Shinobu Takizawa, Kazuhiro Takenaka, Hiroaki Sasai
ADVANCED SYNTHESIS & CATALYSIS 2020年7月 研究論文(学術雑誌)
-
Organocatalytic Synthesis of Highly Functionalized Heterocycles by Enantioselective aza-Morita-Baylis-Hillman-Type Domino Reactions
Shinobu Takizawa
Chemical & Pharmaceutical Bulletin Vol. 68 No. 4 p. 299-315 2020年4月 研究論文(学術雑誌)
-
Preparation of Optically Pure Dinuclear Cobalt(III) Complex with Λ-Configuration as a Dianionic Chiral Catalyst
Shinobu Takizawa, Hiroaki Sasai, Mohamed S. H. Salem, Ankit Kumar, Makoto Sako, Tsukasa Abe
HETEROCYCLES Vol. 103 No. 1 p. 225-225 2020年3月 研究論文(学術雑誌)
出版者・発行元:The Japan Institute of Heterocyclic Chemistry
-
Enantioselective One-pot Synthesis of 3-Azabicyclo[3.1.0]hexanes via Allylic Substitution and Oxidative Cyclization
Bijan Mohon Chaki, Kazuhiro Takenaka, Linpeng Zhu, Tetsuya Tsujihara, Shinobu Takizawa, Hiroaki Sasai
Advanced Synthesis and Catalysis Vol. 362 No. 7 p. 1537-1547 2020年
-
Exploration of flow reaction conditions using machine-learning for enantioselective organocatalyzed Rauhut-Currier and [3+2] annulation sequence
Masaru Kondo, H. D.P. Wathsala, Makoto Sako, Yutaro Hanatani, Kazunori Ishikawa, Satoshi Hara, Takayuki Takaai, Takashi Washio, Shinobu Takizawa, Hiroaki Sasai
Chemical Communications Vol. 56 No. 8 p. 1259-1262 2020年 研究論文(学術雑誌)
-
Room-Temperature, Metal-Free and One-Pot Preparation of 2H-indazoles via a Mills Reaction and Cyclization Sequence
Kondo, M, Takizawa, S, Jiang, Y, Sasai, H
Chemistry - A European Journal Vol. 25 No. 42 p. 9866-9869 2019年7月25日 研究論文(学術雑誌)
-
キラルバナジウム触媒によるヘリセン様化合物の簡便合成
佐古真, 滝澤忍, 笹井宏明
生産と技術 2019年4月
-
Chiral Dinuclear Vanadium Complex-Mediated Oxidative Coupling of Resorcinols
Makoto Sako, Takanori Aoki, Nadine Zumbrägel, Lukas Schober, Harald Gröger, Shinobu Takizawa, Hiroaki Sasai
Journal of Organic Chemistry Vol. 84 No. 3 p. 1580-1587 2019年2月1日 研究論文(学術雑誌)
-
A concise, catalyst-free synthesis of Davis’ oxaziridines using sodium hypochlorite
Saori Kitagawa, Hiromitsu Mori, Tatsuya Odagiri, Katsuya Suzuki, You Kikkawa, Rie Osugi, Shinobu Takizawa, Yoshikazu Kimura, Masayuki Kirihara
SynOpen Vol. 03 No. 01 p. 21-25 2019年1月 研究論文(学術雑誌)
出版者・発行元:
-
Enantioselective Rauhut–Currier sequence involving desymmetrization of cyclic dienones
S. Takizawa, H. D, P. Wathsala, F. A. Arteaga, K. Kishi, H. Sasai
2018年11月
-
Asymmetric oxidative coupling of hydroxycarbazoles: Facile synthesis of (+)-bi-2-hydroxy-3-methylcarbazole
Makoto Sako, Akimasa Sugizaki, Shinobu Takizawa
Bioorganic and Medicinal Chemistry Letters Vol. 28 No. 16 p. 2751-2753 2018年9月1日 研究論文(学術雑誌)
出版者・発行元:Elsevier {BV}
-
Chiral vanadium complex-catalyzed enantioselective oxidative coupling reactions
Sako, M., Takizawa, S., Sasai, H.
Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry Vol. 76 No. 9 p. 874-884 2018年9月1日 研究論文(学術雑誌)
出版者・発行元:The Society of Synthetic Organic Chemistry, Japan
-
Vanadium-Catalyzed Dehydrogenation of N-Heterocycles in Water
Nadine Zumbrägel, Makoto Sako, Shinobu Takizawa, Hiroaki Sasai, Harald Gröger
Organic Letters Vol. 20 No. 16 p. 4723-4727 2018年8月17日 研究論文(学術雑誌)
出版者・発行元:American Chemical Society ({ACS})
-
Phosphine-Catalyzed Dual Umpolung Domino Michael Reaction: Facile Synthesis of Hydroindole- and Hydrobenzofuran-2-Carboxylates
滝澤 忍
ACS Catalysis Vol. 8 No. 6 p. 5228-5232 2018年6月1日 研究論文(学術雑誌)
-
Phosphine-Catalyzed Dual Umpolung Domino Michael Reaction: Facile Synthesis of Hydroindole- and Hydrobenzofuran-2-Carboxylates
Kenta Kishi, Shinobu Takizawa, Hiroaki Sasai
ACS Catal. 2018年5月 研究論文(学術雑誌)
-
Enantioselective synthesis of spiro (isoxazole-isoxazoline) hybrid ligands
Bijan Mohon Chaki, Kazuhiko Wakita, Shinobu Takizawa, Kazuhiro Takenaka, Hiroaki Sasai
Heterocycles Vol. 97 No. 1 p. 493-505 2018年 研究論文(学術雑誌)
-
Enantioselective carbon-carbon bond-forming reactions catalyzed by vanadium(V) complexes
S. Takizawa, M. Sako, H. Sasai
2017年10月
-
多機能有機分子不斉触媒を用いるエナンチオ選択的ドミノ反応の開発
滝澤忍, 笹井宏明
化学工業 2017年9月
-
Reversal of Enantioselectivity Approach to BINOLs via Single and Dual 2‑Naphthol Activation Modes
H. Y. Kim, S. Takizawa, H. Sasai, K. Oh
Org. Lett. Vol. 19 No. 14 p. 3867-3870 2017年7月21日 研究論文(学術雑誌)
-
Short Syntheses of 4-Deoxycarbazomycin B, Sorazolon E, and (+)-Sorazolon E2
Makoto Sako, Kazuya Ichinose, Shinobu Takizawa, Hiroaki Sasai
Chemistry - An Asian Journal Vol. 12 No. 12 p. 1305-1308 2017年6月19日 研究論文(学術雑誌)
-
キラルな二核バナジウム触媒の開発と不斉炭素-炭素結合形成反応への応用
滝澤忍
2017年2月 研究論文(その他学術会議資料等)
-
Chiral Organocatalyzed Intermolecular Rauhut–Currier Reaction of Nitroalkenes with Ethyl Allenoate
S. Takizawa, M. Sako, K. Kishi, M. Shigenobu, G. Vo-Thanh, H. Sasai
Chem. Pharm. Bull. Vol. 65 No. 11 p. 997-999 2017年 研究論文(学術雑誌)
-
Enantio- and diastereoselective Betti/aza-michael sequence: Single operated preparation of chiral 1,3-disubstituted isoindolines
Shinobu Takizawa, Makoto Sako, Mohamed Ahmed Abozeid, Kenta Kishi, H. D.P. Wathsala, Shuichi Hirata, Kenichi Murai, Hiromichi Fujioka, Hiroaki Sasai
Organic Letters Vol. 19 No. 19 p. 5426-5429 2017年 研究論文(学術雑誌)
-
Enantioselective Synthesis of Tetrahydrocyclopenta[b]indole Bearing a Chiral Quaternary Carbon Center via Pd(II)-SPRIX-Catalyzed C–H Activation
M. A. Abozeid, S. Sairenji, S. Takizawa, M. Fujita, H. Sasai
Chem. Commun. Vol. 53 No. 51 p. 6887-6890 2017年 研究論文(学術雑誌)
-
Multifunctional Catalysis: Stereoselective Construction of α-Methylidene-γ-Lactams via Amidation/Rauhut–Currier Sequence
K. Kishi, F. A. Arteaga, S. Takizawa, H. Sasai
Chem. Commun. Vol. 53 No. 55 p. 7724-7727 2017年 研究論文(学術雑誌)
-
Determination of the absolute configuration of compounds bearing chiral quaternary carbon centers using the crystalline sponge method
Shiho Sairenji, Takashi Kikuchi, Mohamed Ahmed Abozeid, Shinobu Takizawa, Hiroaki Sasai, Yuichiro Ando, Kohsuke Ohmatsu, Takashi Ooi, Makoto Fujita
Chemical Science Vol. 8 No. 7 p. 5132-5136 2017年 研究論文(学術雑誌)
-
Facile synthesis of spirooxindoles via an enantioselective organocatalyzed sequential reaction of oxindoles with ynone
Shinobu Takizawa, Kenta Kishi, Miki Kusaba, Bai Jianfei, Takeyuki Suzuki, Hiroaki Sasai
Heterocycles Vol. 95 No. 2 p. 761-767 2017年 研究論文(学術雑誌)
-
二重活性化能を有する不斉触媒の開発と応用
滝澤忍
2016年12月 研究論文(その他学術会議資料等)
-
Efficient Enantioselective Synthesis of Oxahelicenes Using Redox/Acid Cooperative Catalysts
滝澤 忍
Journal of the American Chemical Society Vol. 138 No. 36 p. 11481-11484 2016年9月14日 研究論文(学術雑誌)
-
Efficient Enantioselective Synthesis of Oxahelicenes Using Redox/Acid Cooperative Catalysts
Makoto Sako, Yoshiki Takeuchi, Tetsuya Tsujihara, Junpei Kodera, Tomikazu Kawano, Shinobu Takizawa, Hiroaki Sasai
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY Vol. 138 No. 36 p. 11481-11484 2016年9月 研究論文(学術雑誌)
-
Enantioselective organocatalytic oxidation of ketimine
Shinobu Takizawa, Kenta Kishi, Mohamed Ahmed Abozeid, Kenichi Murai, Hiromichi Fujioka, Hiroaki Sasai
Organic and Biomolecular Chemistry Vol. 14 No. 2 p. 761-767 2016年 研究論文(学術雑誌)
-
Organocatalyzed [4+2] Annulation of All-Carbon Tetrasubstituted Alkenes with Allenoates: Synthesis of Highly Functionalized 2H- and 4H-Pyran Derivatives.
Thi Thuy Duong Ngo, Kenta Kishi, Makoto Sako, Masashi Shigenobu, Chloée Bournaud, Martial Toffano, Régis Guillot, Jean Pierre Baltaze, Shinobu Takizawa, Hiroaki Sasai, Giang Vo-Thanh
ChemistrySelect Vol. 1 No. 17 p. 5414-5420 2016年 研究論文(学術雑誌)
出版者・発行元:Wiley-Blackwell
-
Copper-catalyzed divergent oxidative pathways of 2-naphthol derivatives:: Ortho -naphthoquinones versus 2-BINOLs
H. Y. Kim, S. Takizawa, K. Oh
Organic and Biomolecular Chemistry Vol. 14 No. 30 p. 7191-7196 2016年 研究論文(学術雑誌)
-
Phosphine-Catalyzed β,γ-Umpolung Domino Reaction of Allenic Esters: Facile Synthesis of Tetrahydrobenzofuranones Bearing a Chiral Tetrasubstituted Stereogenic Carbon Center
滝澤 忍
Angewandte Chemie, International Edition Vol. 54 No. 51 p. 15511-15515 2015年12月14日 研究論文(学術雑誌)
-
Structural Features and Asymmetric Environment of i-Pr-SPRIX Ligand
Kazuhiro Takenaka, Xianjin Lin, Shinobu Takizawa, Hiroaki Sasai
Chirality Vol. 27 No. 8 p. 532-537 2015年8月1日 研究論文(学術雑誌)
-
An enantioselective organocatalyzed aza-Morita-Baylis-Hillman reaction of isatin-derived ketimines with acrolein
Yasushi Yoshida, Makoto Sako, Kenta Kishi, Hiroaki Sasai, Susumi Hatakeyama, Shinobu Takizawa
Organic and Biomolecular Chemistry Vol. 13 No. 34 p. 9022-9028 2015年7月17日 研究論文(学術雑誌)
-
Pd(II)-catalyzed diastereoselective and enantioselective domino cyclization/cycloaddition reactions of alkenyl oximes for polycyclic heterocycles with four chiral stereogenic centers
Mohamed A. Abozeid, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Letters Vol. 56 No. 29 p. 4316-4319 2015年6月14日 研究論文(学術雑誌)
-
Pd-catalyzed enantioselective intramolecular α-arylation of α-substituted cyclic ketones: Facile synthesis of functionalized chiral spirobicycles
Lulu Fan, Shinobu Takizawa, Yoshiki Takeuchi, Kazuhiro Takenaka, Hiroaki Sasai
Organic and Biomolecular Chemistry Vol. 13 No. 17 p. 4837-4840 2015年5月7日 研究論文(学術雑誌)
-
Enantioselective and aerobic oxidative coupling of 2-naphthol derivatives using chiral dinuclear vanadium(V) complex in water
Makoto Sako, Shinobu Takizawa, Yasushi Yoshida, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 26 No. 12-13 p. 613-616 2015年 研究論文(学術雑誌)
-
C<inf>3</inf>-Symmetric chiral trisimidazoline-catalyzed Friedel-Crafts (FC)-type reaction
Shinobu Takizawa, Shuichi Hirata, Kenichi Murai, Hiromichi Fujioka, Hiroaki Sasai
Organic and Biomolecular Chemistry Vol. 12 No. 31 p. 5827-5830 2014年8月21日 研究論文(学術雑誌)
-
Facile regio- and stereoselective metal-free synthesis of all-carbon tetrasubstituted alkenes bearing a C(sp3)-F unit via dehydroxyfluorination of morita-baylis-hillman (MBH) adducts
Shinobu Takizawa, Fernando Arteaga Arteaga, Kenta Kishi, Shuichi Hirata, Hiroaki Sasai
Organic Letters Vol. 16 No. 16 p. 4162-4165 2014年8月15日 研究論文(学術雑誌)
-
Enantioselective organocatalyzed domino process based on aza-Morita-Baylis-Hillman-type (aza-MBH) reaction
Shuichi Hirata, Shinobu Takizawa, Naohito Inoue, Fernando A. Arteaga, Yasushi Yoshida, Michitaka Suzuki, Hiroaki Sasai
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY Vol. 248 2014年8月
-
Enantioselective organocatalyzed formal [4+2] cycloaddition of ketimines with allenoates: Easy access to a tetrahydropyridine framework with a chiral tetrasubstituted stereogenic carbon center
Shinobu Takizawa, Fernando Arteaga Arteaga, Yasushi Yoshida, Michitaka Suzuki, Hiroaki Sasai
Asian Journal of Organic Chemistry Vol. 3 No. 4 p. 412-415 2014年4月 研究論文(学術雑誌)
-
Enantioselective oxidative-coupling of polycyclic phenols
Shinobu Takizawa, Junpei Kodera, Yasushi Yoshida, Makoto Sako, Stefanie Breukers, Dieter Enders, Hiroaki Sasai
Tetrahedron Vol. 70 No. 9 p. 1786-1793 2014年3月4日 研究論文(学術雑誌)
-
Metal-catalyzed enantio- and diastereoselective c-c bond-forming reactions in domino processes
Shinobu Takizawa, Hiroaki Sasai
Domino Reactions: Concepts for Efficient Organic Synthesis p. 419-462 2013年12月27日 論文集(書籍)内論文
-
Chiral bifunctional organocatalysts bearing a 1,3-propanediamine unit for the aza-MBH reaction
Shuichi Hirata, Kouichi Tanaka, Katsuya Matsui, Fernando Arteaga Arteaga, Yasushi Yoshida, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 24 No. 19 p. 1189-1192 2013年10月15日 研究論文(学術雑誌)
-
P-chirogenic organocatalysts: Application to the aza-Morita-Baylis-Hillman (aza-MBH) reaction of ketimines
Shinobu Takizawa, Emmanuelle Rémond, Fernando Arteaga Arteaga, Yasushi Yoshida, Vellaisamy Sridharan, Jérôme Bayardon, Sylvain Jugé, Hiroaki Sasai
Chemical Communications Vol. 49 No. 75 p. 8392-8394 2013年9月28日 研究論文(学術雑誌)
-
Pd(ii)-SDP-catalyzed enantioselective 5-exo-dig cyclization of γ-alkynoic acids: Application to the synthesis of functionalized dihydofuran-2(3H)-ones containing a chiral quaternary carbon center
Vellaisamy Sridharan, Lulu Fan, Shinobu Takizawa, Takeyuki Suzuki, Hiroaki Sasai
Organic and Biomolecular Chemistry Vol. 11 No. 35 p. 5936-5943 2013年9月21日 研究論文(学術雑誌)
-
Organocatalyzed formal [2 + 2] cycloaddition of ketimines with allenoates: Facile access to azetidines with a chiral tetrasubstituted carbon stereogenic center
Shinobu Takizawa, Fernando Arteaga Arteaga, Yasushi Yoshida, Michitaka Suzuki, Hiroaki Sasai
Organic Letters Vol. 15 No. 16 p. 4142-4145 2013年8月16日 研究論文(学術雑誌)
-
DFT study of a 5-endo-trig-type cyclization of 3-alkenoic acids by using Pd-spiro-bis(isoxazoline) as catalyst: Importance of the rigid spiro framework for both selectivity and reactivity
Randa K. Gabr, Takuji Hatakeyama, Kazuhiro Takenaka, Shinobu Takizawa, Yoshihiro Okada, Masaharu Nakamura, Hiroaki Sasai
Chemistry - A European Journal Vol. 19 No. 29 p. 9518-9525 2013年7月15日 研究論文(学術雑誌)
-
O-(hydroxyalkyl)phenyl P-chirogenic phosphines as functional chiral lewis bases
Emmanuelle Rémond, Jéroîme Bayardon, Shinobu Takizawa, Yoann Rousselin, Hiroaki Sasai, Sylvain Jugé
Organic Letters Vol. 15 No. 8 p. 1870-1873 2013年4月 研究論文(学術雑誌)
-
Facile synthesis of α-methylidene-γ-butyrolactones: Intramolecular Rauhut-Currier reaction promoted by chiral acid-base organocatalysts
Shinobu Takizawa, Tue Minh Nhat Nguyen, André Grossmann, Michitaka Suzuki, Dieter Enders, Hiroaki Sasai
Tetrahedron Vol. 69 No. 3 p. 1202-1209 2013年1月21日 研究論文(学術雑誌)
-
Vanadium-catalyzed enantioselective Friedel-Crafts-type reactions
Shinobu Takizawa, Fernando Arteaga Arteaga, Yasushi Yoshida, Junpei Kodera, Yoshihiro Nagata, Hiroaki Sasai
Dalton Transactions Vol. 42 No. 33 p. 11787-11790 2013年 研究論文(学術雑誌)
-
6.9 C-C Bond Formation: (aza) Morita-Baylis-Hillman Reaction
H. Sasai, S. Takizawa
Comprehensive Chirality Vol. 6 p. 234-263 2012年9月 論文集(書籍)内論文
-
Design and synthesis of spiro bis(1,2,3-triazolium) salts as chiral ionic liquids
Yasushi Yoshida, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 23 No. 11-12 p. 843-851 2012年6月30日 研究論文(学術雑誌)
-
Enantioselective Synthesis of α-Alkylidene-γ-Butyrolactones: Intramolecular Rauhut-Currier Reaction Promoted by Acid/Base Organocatalysts
滝澤 忍
Angewandte Chemie, International Edition Vol. 51 No. 22 p. 5423-5426 2012年5月29日 研究論文(学術雑誌)
-
Synthesis of spiro bis(1,2,3-triazolium) salts as chiral ionic liquids
Yasushi Yoshida, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Letters Vol. 52 No. 51 p. 6877-6879 2011年12月21日 研究論文(学術雑誌)
-
A bifunctional spiro-type organocatalyst with high enantiocontrol: Application to the aza-Morita-Baylis-Hillman reactions
Shinobu Takizawa, Kimiko Kiriyama, Kenta Ieki, Hiroaki Sasai
Chemical Communications Vol. 47 No. 32 p. 9227-9229 2011年8月28日 研究論文(学術雑誌)
-
Enantioselective cyclization of 4-alkenoic acids via an oxidative allylic C-H esterification
Kazuhiro Takenaka, Mitsutoshi Akita, Yugo Tanigaki, Shinobu Takizawa, Hiroaki Sasai
Organic Letters Vol. 13 No. 13 p. 3506-3509 2011年7月1日 研究論文(学術雑誌)
-
Immobilization of Multicomponent Asymmetric Catalysts (MACs)
Hiroaki Sasai, Shinobu Takizawa
Polymeric Chiral Catalyst Design and Chiral Polymer Synthesis p. 293-322 2011年6月27日 論文集(書籍)内論文
-
Chlorinative cyclization of 1,6-enynes by enantioselective palladium(II)/palladium(IV) catalysis
Kazuhiro Takenaka, Shintaro Hashimoto, Shinobu Takizawa, Hiroaki Sasai
Advanced Synthesis and Catalysis Vol. 353 No. 7 p. 1067-1070 2011年5月9日 研究論文(学術雑誌)
-
An enantioselective organocatalyzed aza-MBH domino process: Application to the facile synthesis of tetrahydropyridines
Shinobu Takizawa, Naohito Inoue, Hiroaki Sasai
Tetrahedron Letters Vol. 52 No. 3 p. 377-380 2011年1月19日 研究論文(学術雑誌)
-
Pd-catalyzed 5-endo-trig-type cyclization of β,γ-unsaturated carbonyl compounds: An efficient ring closing reaction to give γ-butenolides and 3-pyrrolin-2-ones
Gan B. Bajracharya, Priti S. Koranne, Rashid N. Nadaf, Randa Kassem Mohamed Gabr, Kazuhiro Takenaka, Shinobu Takizawa, Hiroaki Sasai
Chemical Communications Vol. 46 No. 47 p. 9064-9066 2010年12月21日 研究論文(学術雑誌)
-
Enantioselective Synthesis of Isoindolines: An Organocatalyzed Domino Process Based On the aza-Morita-Baylis-Hillman Reaction
滝澤 忍
Angewandte Chemie, International Edition Vol. 49 No. 50 p. 9725-9729 2010年12月10日 研究論文(学術雑誌)
-
Development of bifunctional organocatalysts for enantioselective Morita-Baylis-Hillman reaction
S. Murakami, S. Takizawa, H. Sasai
2010年12月 研究論文(国際会議プロシーディングス)
-
Bifunctional organocatalyst bearing (S)-1,1’-spirobiindane as chiral backbone
K. Kiriyama, S. Takizawa, H. Sasai
2010年12月 研究論文(国際会議プロシーディングス)
-
Enantioselective aza-Morita-Baylis-Hillman (aza-MBH) domino reactions promoted by acid-base organocatalyst
N. Inoue, S. Takizawa, S. Hirata, T. M.-N. Nguyen, H. Sasai
2010年12月 研究論文(国際会議プロシーディングス)
-
Enantioselective oxidative coupling of 2-naphthols using dinuclear vanadium complex
S. Takizawa, T. Katayama, D. Rajesh, H. Sasai
2010年12月 研究論文(国際会議プロシーディングス)
-
DFT Study on 5-Endo-Trig Type Cyclization of β,γ-Unsaturated Carboxylic Acids Using Pd-SPRIX Catalyst
R. K, M. Gabr, G. B. Bajracharya, X. Lin, K. Takenaka, S. Takizawa, Y. Okada, T. Hatakeyama, M. Nakamura, H. Sasai
2010年12月 研究論文(国際会議プロシーディングス)
-
Enantioselective Synthesis of γ-Lactones via Intramolecular Wacker-type Cyclization Catalyzed by Pd-SPRIX
M. Akita, Y. Tanigaki, K. Takenaka, S. Takizawa, H. Sasai
2010年12月 研究論文(国際会議プロシーディングス)
-
Enantioselective wacker-type cyclization of 2-alkenyl-1,3-diketones promoted by Pd-SPRIX catalyst
Kazuhiro Takenaka, Suman C. Mohanta, Mahesh L. Patil, C. V.Laxman Rao, Shinobu Takizawa, Takeyuki Suzuki, Hiroaki Sasai
Organic Letters Vol. 12 No. 15 p. 3480-3483 2010年8月6日 研究論文(学術雑誌)
-
Enantioselective domino reactions promoted by acid-base organocatalysts
S. Takizawa, N. Inoue, S. Hirata, H. Sasai
2010年7月 研究論文(国際会議プロシーディングス)
-
Enantioselective Wacker-type cyclization of 2-alkenyl-1,3-diketones promoted by Pd-SPRIX catalyst
K. Takenaka, S. C. Mohanta, M. L. Patil, C. V. L. Rao, S. Takizawa, T. Suzuki, H. Sasai
Org. Lett. 2010年6月 研究論文(学術雑誌)
-
Enantioselective 6-endo-trig Wacker-type cyclization of 2-geranylphenols: Application to a facile synthesis of (-)-cordiachromene
Kazuhiro Takenaka, Yugo Tanigaki, Mahesh L. Patil, C. V.Laxman Rao, Shinobu Takizawa, Takeyuki Suzuki, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 21 No. 7 p. 767-770 2010年4月 研究論文(学術雑誌)
-
Enantioselective 6-endo-trig Wacker-type cyclization of 2-geranylphenols: application to a facile synthesis of (-)-cordiachromene
Kazuhiro Takenaka, Yugo Tanigaki, Mahesh L. Patil, C. V. Laxman Rao, Shinobu Takizawa, Takeyuki Suzuki, Hiroaki Sasai
TETRAHEDRON-ASYMMETRY Vol. 21 No. 7 p. 767-770 2010年4月 研究論文(学術雑誌)
-
Asymmetric synthesis of chiral spiro bis(isoxazoline) and spiro (isoxazole-isoxazoline) ligands
Kazuhiro Takenaka, Toyohiro Nagano, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 21 No. 4 p. 379-381 2010年3月16日 研究論文(学術雑誌)
-
Enantioselective organocatalyzed aza-MBH domino process: Application to the facile synthesis of tetrahydropyridines and isoindolines
S. Takizawa, N. Inoue, S. Hirata, H. Sasai
2010年3月 研究論文(国際会議プロシーディングス)
-
Enantioselective Synthesis of Isoindolines: An Organocatalyzed Domino Process Based On the aza-Morita-Baylis-Hillman Reaction
Shinobu Takizawa, Naohito Inoue, Shuichi Hirata, Hiroaki Sasai
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION Vol. 49 No. 50 p. 9725-9729 2010年 研究論文(学術雑誌)
-
Acid-base organocatalysts for the aza-Morita-Baylis-Hillman reaction of nitroalkenes
Shinobu Takizawa, Atsushi Horii, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 21 No. 8 p. 891-894 2010年 研究論文(学術雑誌)
-
Enantioselective Intramolecular Oxidative Aminocarbonylation of Alkenylureas Catalyzed by Palladium−Spiro Bis(isoxazoline) Complexes
Tetsuya Tsujihara, Toshio Shinohara, Kazuhiro Takenaka, Shinobu Takizawa, Kiyotaka Onitsuka, Minoru Hatanaka, Hiroaki Sasai
J. Org. Chem. Vol. 74 No. 24 p. 9274-9279 2009年12月18日 研究論文(学術雑誌)
-
One-pot preparation of chiral dinuclear vanadium(V) complex
Shinobu Takizawa, Doss Rajesh, Tomomi Katayama, Hiroaki Sasai
Synlett No. 10 p. 1667-1669 2009年6月 研究論文(学術雑誌)
-
デンドリマーとデンドロン Buchwald(/ Hartwig)アミノ化反応 Pd(η3-C3H5)(Cp)から0価パラジウム-ホスフィン錯体の調製 HIVプロテアーゼ阻害剤
滝澤 忍, 荒井 孝義, 笹井 宏明, 渕辺 耕平, 秋山 隆彦, 桑野 良一, 柳田 玲子, 竹本 佳司
有機合成化学協会誌 Vol. 67 No. 3 p. 257-257 2009年
出版者・発行元:The Society of Synthetic Organic Chemistry, Japan
-
Total synthesis of chloropeptin II (complestatin) and chloropeptin I
Joie Garfunkle, F. Scott Kimball, John D. Trzupek, Shinobu Takizawa, Hiroyuki Shimamura, Masaki Tomishima, Dale L. Boger
Journal of the American Chemical Society Vol. 131 No. 44 p. 16036-16038 2009年 研究論文(学術雑誌)
-
Dicationic palladium(II)-spiro bis(isoxazoline) complex for highly enantioselective isotactic copolymerization of CO with styrene derivatives
Gan B. Bajracharya, Priti S. Koranne, Tetsuya Tsujihara, Shinobu Takizawa, Kiyotaka Onitsuka, Hiroaki Sasai
Synlett No. 2 p. 310-314 2009年1月 研究論文(学術雑誌)
-
Chiral dinuclear vanadium(v) catalysts for oxidative coupling of 2-naphthols
Shinobu Takizawa, Tomomi Katayama, Chiaki Kameyama, Kiyotaka Onitsuka, Takeyuki Suzuki, Takeshi Yanagida, Tomoji Kawai, Hiroaki Sasai
Chemical Communications No. 15 p. 1810-1812 2008年 研究論文(学術雑誌)
-
Synthesis of novel spiro imidazolium salts as chiral ionic liquids
Mahesh L. Patil, C. V.Laxman Rao, Shinobu Takizawa, Kazuhiro Takenaka, Kiyotaka Onitsuka, Hiroaki Sasai
Tetrahedron Vol. 63 No. 51 p. 12702-12711 2007年12月17日 研究論文(学術雑誌)
-
Development of new methods toward efficient immobilization of chiral catalysts
Shinobu Takizawa, Mahesh L. Patil, Kazuyoshi Marubayashi, Hiroaki Sasai
Tetrahedron Vol. 63 No. 28 p. 6512-6528 2007年7月9日 研究論文(学術雑誌)
-
Enantioselective glyoxylate-ene reaction using a novel spiro bis(isoxazoline) ligand in copper catalysis
Kazuhiko Wakita, Gan B. Bajracharya, Midori A. Arai, Shinobu Takizawa, Takeyuki Suzuki, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 18 No. 3 p. 372-376 2007年2月28日 研究論文(学術雑誌)
-
Optical resolution of tetra isopropyl-substituted spiro bis(isoxazoline)i-Pr-SPRIX
Shinobu Takizawa, Junichi Yogo, Tetsuya Tsujihara, Kiyotaka Onitsuka, Hiroaki Sasai
Journal of Organometallic Chemistry Vol. 692 No. 1-3 p. 495-498 2007年1月1日 研究論文(学術雑誌)
-
Enantioselective catalyses using SPRIX ligands and novel spiro isoxazoline-isoxazole hybrid ligands
Priti S. Koranne, Tetsuya Tsujihara, Shinobu Takizawa, Junichi Yogo, Kiyotaka Onitsuka, Hiroaki Sasai
Abstracts of Papers, 232nd ACS National Meeting, San Francisco Vol. 232 2006年9月 研究論文(国際会議プロシーディングス)
-
A Brønsted acid and Lewis base organocatalyst for the aza-Morita-Baylis-Hillman reaction
Katsuya Matsui, Shinobu Takizawa, Hiroaki Sasai
Synlett No. 5 p. 761-765 2006年3月17日 研究論文(学術雑誌)
-
Conformational lock in a Brønsted acid-Lewis base organocatalyst for the aza-Morita-Baylis-Hillman reaction
Katsuya Matsui, Kouichi Tanaka, Atsushi Horii, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 17 No. 4 p. 578-583 2006年2月20日 研究論文(学術雑誌)
-
Design and synthesis of novel chiral spiro ionic liquids
Mahesh L. Patil, C. V.Laxman Rao, Kohji Yonezawa, Shinobu Takizawa, Kiyotaka Onitsuka, Hiroaki Sasai
Organic Letters Vol. 8 No. 2 p. 227-230 2006年1月19日 研究論文(学術雑誌)
-
Spiro crown ethers bearing (S)-1,1′-spirobiindanes as chiral backbones
Kohji Yonezawa, Mahesh L. Patil, Hiroaki Sasai, Shinobu Takizawa
Heterocycles Vol. 66 No. 1 p. 639-644 2005年12月31日 研究論文(学術雑誌)
-
Fragmentation of tertiary cyclopropanol compounds catalyzed by vanadyl acetylacetonate
Masayuki Kirihara, Hiroko Kakuda, Motohiro Ichinose, Yuta Ochiai, Shinobu Takizawa, Asuka Mokuya, Kumiko Okubo, Akihiko Hatano, Motoo Shiro
Tetrahedron Vol. 61 No. 20 p. 4831-4839 2005年5月16日 研究論文(学術雑誌)
出版者・発行元:Elsevier Ltd
-
Bifunctional organocatalysts for enantioselective aza-Morita-Baylis-Hillman reaction
滝澤 忍
Journal of the American Chemical Society Vol. 127 No. 11 p. 3680-3681 2005年3月23日 研究論文(学術雑誌)
-
Enantioselective Morita-Baylis-Hillman (MBH) reaction promoted by a heterobimetallic complex with a Lewis base
Katsuya Matsui, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Letters Vol. 46 No. 11 p. 1943-1946 2005年3月14日 研究論文(学術雑誌)
-
Micelle-derived polymer supports for enantioselective catalysts
Shinobu Takizawa, Mahesh L. Patil, Fumiko Yonezawa, Kazuyoshi Marubayashi, Hiroyuki Tanaka, Tomoji Kawai, Hiroaki Sasai
Tetrahedron Letters Vol. 46 No. 7 p. 1193-1197 2005年2月14日 研究論文(学術雑誌)
-
Development of novel chiral spiro-type ligands
Tetsuya Tsujihara, Priti S. Koranne, Kazuhiko Wakita, Chinnasamy Muthiah, Junichi Yogo, Shinobu Takizawa, Hiroaki Sasai
Abstracts of Papers, 229th ACS National Meeting, San Diego Vol. 15 No. 23 p. 3693-3697 2004年11月29日 研究論文(学術雑誌)
-
Immobilization of multifunctional asymmetric catalysts (MACS).
D Jayaprakash, S Takizawa, T Arai, H Sasai
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY Vol. 227 p. U203-U203 2004年3月
-
Dual activation in a homolytic coupling reaction promoted by an enantioselective dinuclear vanadium(IV) catalyst
Hidenori Somei, Yasuaki Asano, Tomokazu Yoshida, Shinobu Takizawa, Hiroshi Yamataka, Hiroaki Sasai
Tetrahedron Letters Vol. 45 No. 9 p. 1841-1844 2004年2月23日 研究論文(学術雑誌)
-
Enantioselective aldol-type reaction using diketene
Takahiro Kawase, Shinobu Takizawa, Doss Jayaprakash, Hiroaki Sasai
Synthetic Communications Vol. 34 No. 24 p. 4487-4492 2004年 研究論文(学術雑誌)
-
Design and synthesis of novel spiro pyridinium and quinolinium salts
Mahesh L. Patil, Shinobu Takizawa, Hiroaki Sasai
Heterocycles Vol. 61 p. 581-586 2003年12月31日 研究論文(学術雑誌)
-
Metal-bridged polymers as insoluble multicomponent asymmetric catalysts with high enantiocontrol: An approach for the immobilization of catalysts without using any support
滝澤 忍
Angewandte Chemie, International Edition Vol. 42 No. 46 p. 5711-5714 2003年12月1日 研究論文(学術雑誌)
-
Monolayer-Protected Au Cluster (MPC)-Supported Ti-BINOLate Complex
Kazuyoshi Marubayashi, Shinobu Takizawa, Tetsuo Kawakusu, Takayoshi Arai, Hiroaki Sasai
Organic Letters Vol. 5 No. 23 p. 4409-4412 2003年11月13日 研究論文(学術雑誌)
-
Synthesis of novel chiral spiro bis(pyrazole) ligands
Shinobu Takizawa, Yuji Honda, Midori A. Arai, Takahiro Kato, Hiroaki Sasai
Heterocycles Vol. 60 No. 11 p. 2551-2556 2003年11月1日 研究論文(学術雑誌)
-
Polymer-supported bisBINOL ligands for the immobilization of multicomponent asymmetric catalysts
Tetuya Sekiguti, Yoshimasa Iizuka, Shinobu Takizawa, Doss Jayaprakash, Takayoshi Arai, Hiroaki Sasai
Organic Letters Vol. 5 No. 15 p. 2647-2650 2003年7月24日 研究論文(学術雑誌)
-
Enantioselective synthesis of α-methylene-γ-butyrolactones using chiral Pd(II)-SPRIX catalyst
Chinnasamy Muthiah, Midori A. Arai, Toshio Shinohara, Takayoshi Arai, Shinobu Takizawa, Hiroaki Sasai
Tetrahedron Letters Vol. 44 No. 28 p. 5201-5204 2003年7月7日 研究論文(学術雑誌)
-
"Catalyst analogue": A concept for constructing multicomponent asymmetric catalysts (MAC) by using a polymer support
Takayoshi Arai, Tetuya Sekiguti, Kazuhiro Otsuki, Shinobu Takizawa, Hiroaki Sasai
Angewandte Chemie - International Edition Vol. 42 No. 19 p. 2144-2147 2003年5月16日 研究論文(学術雑誌)
-
A dendrimer-supported heterobimetallic asymmetric catalyst
Takayoshi Arai, Tetuya Sekiguti, Yoshimasa Iizuka, Shinobu Takizawa, Shigeru Sakamoto, Kentaro Yamaguchi, Hiroaki Sasai
Tetrahedron Asymmetry Vol. 13 No. 19 p. 2083-2087 2002年10月4日 研究論文(学術雑誌)
-
Facile and Clean Oxidation of Alcohols in Water Using Hypervalent Iodine (III) Reagents
Hirofumi Tohma, Tomohiro Maegawa, Shinobu Takizawa, Yasuyuki Kita
Advanced Synthesis and Catalysis Vol. 344 No. 3-4 p. 328-337 2002年5月 研究論文(学術雑誌)
-
Indium-mediated reaction of 3-bromo-3,3-difluoropropene and bromodifluoromethylacetylene derivatives with aldehydes
Masayuki Kirihara, Tomofumi Takuwa, Shinobu Takizawa, Takefumi Momose, Hideo Nemoto
Tetrahedron Vol. 56 No. 42 p. 8275-8280 2000年10月13日 研究論文(学術雑誌)
出版者・発行元:Elsevier Ltd
-
Facile and clean oxidation of alcohols in water using hypervalent iodine(III) reagents
Hirofumi Tohma, Shinobu Takizawa, Tomohiro Maegawa, Yasuyuki Kita
Angewandte Chemie - International Edition Vol. 39 No. 7 p. 1306-1308 2000年4月 研究論文(学術雑誌)
-
Aerobic deprotection of monothioacetals catalyzed by trichlorooxyvanadium
Masayuki Kirihara, Yuta Ochiai, Nobuka Arai, Shinobu Takizawa, Takefumi Momose, Hideo Nemoto
Tetrahedron Letters Vol. 40 No. 51 p. 9055-9057 1999年12月17日 研究論文(学術雑誌)
出版者・発行元:Elsevier Ltd
-
Aerobic oxidation of α-hydroxycarbonyls catalysed by trichlorooxyvanadium: Efficient synthesis of α-dicarbonyl compounds
Masayuki Kirihara, Yuta Ochiai, Shinobu Takizawa, Hiroki Takahata, Hideo Nemoto
Chemical Communications No. 15 p. 1387-1388 1999年8月7日 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry
-
Novel one-pot preparation of 5-methoxylated indoline and indole derivatives using a hypervalent iodine(III) reagent
Hirofumi Tohma, Hiroaki Watanabe, Shinobu Takizawa, Tomohiro Maegawa, Yasuyuki Kita
Heterocycles Vol. 51 No. 8 p. 1785-1788 1999年8月1日 研究論文(学術雑誌)
-
Hypervalent iodine(V)-induced asymmetric oxidation of sulfides to sulfoxides mediated by reversed micelles: Novel nonmetallic catalytic system
H. Tohma, S. Takizawa, H. Watanabe, Y. Fukuoka, T. Maegawa, Y. Kita
Journal of Organic Chemistry Vol. 64 No. 10 p. 3519-3523 1999年 研究論文(学術雑誌)
-
Tertiary cyclopropanol systems as synthetic intermediates: Novel ring-cleavage of tertiary cyclopropanol systems using vanadyl acetylacetonate
Masayuki Kirihara, Motohiro Ichinose, Shinobu Takizawa, Takefumi Momose
Chemical Communications No. 16 p. 1691-1692 1998年8月21日 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry
-
Hypervalent iodine(III) oxidation catalyzed by quaternary ammonium salt in miceliar systems
Hirofumi Tohma, Shinobu Takizawa, Hiroaki Watanabe, Yasuyuki Kita
Tetrahedron Letters Vol. 39 No. 25 p. 4547-4550 1998年6月18日 研究論文(学術雑誌)
-
A novel and direct α-azidation of cyclic sulfides using a hypervalent iodine(III) reagent
Hirofumi Tohma, Masahiro Egi, Makoto Ohtsubo, Hiroaki Watanabe, Shinobu Takizawa, Yasuyuki Kita
Chemical Communications No. 2 p. 173-174 1998年1月21日 研究論文(学術雑誌)
-
Highly chemoselective, oxyvanadium-catalysed cleavage of α-hydroxy ketones
Masayuki Kirihara, Shinobu Takizawa, Takefumi Momose
Journal of the Chemical Society - Perkin Transactions 1 No. 1 p. 7-8 1998年1月7日 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry
-
α,α-Difluoroallyl carbanion: Indium-mediation in its facile coupling with aldehydes
Masayuki Kirihara, Tomofumi Takuwa, Shinobu Takizawa, Takefumi Momose
Tetrahedron Letters Vol. 38 No. 16 p. 2853-2854 1997年4月21日 研究論文(学術雑誌)
-
Bicyclo[3.3.1]nonanes as synthetic intermediates. XXIII. A breakthrough by lanthanoid mediation in nucleophilic addition of carbanions to the inert 'fork head' carbonyl in bicyclo[3.3.1]nonan-3-ones
Takefumi Momose, Shinobu Takizawa, Masayuki Kirihara
Synthetic Communications Vol. 27 No. 19 p. 3313-3320 1997年 研究論文(学術雑誌)
出版者・発行元:Taylor and Francis Inc.