Decarboxylative Functionalization of Carboxylic Acids with Easily Oxidizable, Unstable, and Difficult Substituents Under Visible Light Irradiation

Sota Tamaki, Tetsuro Kusamoto, Hayato Tsurugi

ChemCatChem　2025/04　Research paper (scientific journal)

Synthesis and characterization of alkali metal salts bearing a phenalenyl-based tridentate ligand

Takuya Kodama, Hikaru Noguchi, Hayato Tsurugi, Mamoru Tobisu

Chemistry Letters　Vol. 54　No. 1　2025/01/01　Research paper (scientific journal)

Cationic nickel(II) complexes bearing a phenalenyl-based tridentate ligand

Takuya Kodama, Hikaru Noguchi, Hayato Tsurugi, Mamoru Tobisu

Chemistry Letters　Vol. 54　No. 1　2025/01/01　Research paper (scientific journal)

Visible-Light-Driven Hydrogen Release from Dye-Sensitized Hydrogen Boride Nanosheets

Chika Shimada, Akira Yamaguchi, Andi Mauliana, Yue Yang, Hayato Tsurugi, Takahiro Kondo, Masahiro Miyauchi

ACS Applied Materials & Interfaces　Vol. 16　No. 27　p. 35225-35231　2024/06/28　Research paper (scientific journal)

Synthesis of Nano-Scale Molecular Iron Oxides as Photo-Catalyst for Molecular Transformations

Hayato TSURUGI

Hosokawa Powder Technology Foundation ANNUAL REPORT　2024/05/31　Research paper (scientific journal)

Effect of distal metal species on lewis basicity of a μ3-oxo ligand in a doubly oxo-bridged (μ3-O)[Rh(cod)]3(μ4-O)M core.

Hayato Tsurugi, Hiroki Mori, Haruna Mori, Masami Nakamoto, Shinji Tanaka, Kazushi Mashima

Dalton transactions (Cambridge, England : 2003)　Vol. 53　No. 20　p. 8546-8549　2024/05/21　Research paper (scientific journal)

Evaluation of Tungsten Catalysis among Early Transition Metals for N-Aryl-2,3,4,5-tetraarylpyrrole Synthesis: Modular Access to N-Doped π-Conjugated Material Precursors.

Hayato Tsurugi, Takuya Akiyama, Connor W Frye, Yuya Kakiuchi, Kazushi Mashima, Ian A Tonks

Inorganic chemistry　Vol. 63　No. 6　p. 3037-3046　2024/02/12　Research paper (scientific journal)

Visible-Light-Induced Hydrogen Generation from Mixtures of Hydrogen Boride Nanosheets and Phenanthroline Molecules

Takeshita, J., Tsurugi, H., Mauliana, A., Yamaguchi, A., Kondo, T., Miyauchi, M.

Advanced Science　Vol. 11　No. 42　2024　Research paper (scientific journal)

Synthesis of Multisubstituted Cyclopentadiene Derivatives from 3,3-Disubstituted Cyclopropenes and Internal Alkynes Catalyzed by Low-Valent Niobium Complexes

Akiyama, T., Kusamoto, T., Mashima, K., Tsurugi, H.

Journal of the American Chemical Society　Vol. 146　No. 49　2024　Research paper (scientific journal)

Decarboxylative Alkylation of Carboxylic Acids with Easily Oxidizable Functional Groups Catalyzed by an Imidazole-Coordinated Fe₃ Cluster under Visible Light Irradiation

Tamaki, S., Kusamoto, T., Tsurugi, H.

Chemistry - A European Journal　Vol. 30　No. 69　2024　Research paper (scientific journal)

Bis(neopentylglycolato)diboron (B2nep2) as a bidentate ligand and a reducing agent for early transition metal chlorides giving MCl4(B2nep2) complexes.

Hiromu Hosoya, Takuya Akiyama, Kazushi Mashima, Hayato Tsurugi

Dalton transactions (Cambridge, England : 2003)　Vol. 52　No. 37　p. 13154-13160　2023/09/26　Research paper (scientific journal)

W-catalyzed Synthesis of N-Aryl-2,3,4,5-tetraarylpyrroles from Diarylacetylenes and Aryl Diazenes: Facile and Modular Access to N-Doped pi-Conjugated Material Precursors

Hayato Tsurugi, Takuya Akiyama, Connor Frye, Yuya Kakiuchi, Kazushi Mashima, Ian Tonks

2023/08/10

Chromium-Catalyzed syn-Selective Ring-Opening Aryl-/Alkylation of 7-Oxabenzonorbornadiene Derivatives with Grignard Reagents

Kohei Nishi, Hayato Tsurugi, Kazushi Mashima

ACS CATALYSIS　Vol. 13　No. 5　p. 3093-3100　2023/03　Research paper (scientific journal)

A binuclear aluminium complex as a single competent catalyst for efficient synthesis of urea, biuret, isourea, isothiourea, phosphorylguanidine, and quinazolinones.

Kulsum Bano, Jyoti Sharma, Archana Jain, Hayato Tsurugi, Tarun K Panda

RSC advances　Vol. 13　No. 5　p. 3020-3032　2023/01/18　Research paper (scientific journal)

Early Transition Metals in Organometallic Chemistry

Beweries, T., Panda, T.K., Roberts, C.C., Tsurugi, H.

Organometallics　Vol. 42　No. 11　2023　Research paper (scientific journal)

Syntheses and Redox Properties of Carboxylate-Ligated Hexanuclear Ce(IV) Clusters and Their Photoinduced Homolysis of the Ce(IV)-Ligand Covalent Bond.

Tomomi Kawakami, Sota Tamaki, Satoru Shirase, Hayato Tsurugi, Kazushi Mashima

Inorganic chemistry　Vol. 61　No. 50　p. 20461-20471　2022/12/19　Research paper (scientific journal)

Early transition metal complexes for direct C[sbnd]H bond functionalization of heteroatom-containing organic compounds

Inoue, M., Tsurugi, H., Mashima, K.

Coordination Chemistry Reviews　Vol. 473　p. 214810-214810　2022/12　Research paper (scientific journal)

Pyrazine Alkylation with Aldehydes and Haloalkanes Using N,N’-Bis(trimethylsilyl)-1,4-dihydropyrazine Derivatives

Tsurugi, H., Matsuno, M., Kawakami, T., Mashima, K.

European Journal of Organic Chemistry　Vol. 2022　No. 41　2022/11/07　Research paper (scientific journal)

3.13 - Group 4 Metal Alkyne, Alkene, and Allyl Complexes

Tsurugi, H.

Comprehensive Organometallic Chemistry IV: Volume 1-15　Vol. 3　p. 477-533　2022/10　Research paper (scientific journal)

N-Methylation of Aniline Derivatives with CO₂ and Phenylsilane Catalyzed by Lanthanum Hydridotriarylborate Complexes bearing a Nitrogen Tridentate Ligand

Shinohara, K., Tsurugi, H., Mashima, K.

ACS Catalysis　Vol. 12　No. 14　p. 8220-8228　2022/07/15　Research paper (scientific journal)

Diarylcuprates for Selective Syntheses of Multifunctionalized Ketones from Thioesters under Mild Conditions

Kato, D., Murase, T., Talode, J., Nagae, H., Tsurugi, H., Seki, M., Mashima, K.

Chemistry - A European Journal　Vol. 28　No. 26　2022/05/06　Research paper (scientific journal)

Olefin Metathesis Catalysts Generated In Situ from Molybdenum(VI)-Oxo Complexes by Tuning Pendant Ligands

Nater, D.F., Kaul, C.J., a}tsch, L., Tsurugi, H., Mashima, K., Cop{\'e}ret, C.

Chemistry - A European Journal　Vol. 28　No. 22　2022/04/19　Research paper (scientific journal)

Cobalt-Catalyzed Alkynylation of Organic Compounds: Hydroalkynylation, Dehydrogenative Alkynylation, and Reductive Alkynylation

Ueda, Y., Tsurugi, H., Mashima, K.

Synlett　Vol. 34　No. 9　2022　Research paper (scientific journal)

Chromium-catalyzed olefination of arylaldehydes with haloforms assisted by 2,3,5,6-tetramethyl-N,N′-bis(trimethylsilyl)-1,4-dihydropyrazine

Nishi, K., Tsurugi, H., Mashima, K.

Chemical Communications　Vol. 59　No. 7　2022　Research paper (scientific journal)

Pyridine-Mediated B-B Bond Activation of (RO)(2)B-B(OR)(2) for Generating Borylpyridine Anions and Pyridine-Stabilized Boryl Radicals as Useful Boryl Reagents in Organic Synthesis

Luis C. Misal Castro, Ibrahim Sultan, Hayato Tsurugi, Kazushi Mashima

SYNTHESIS-STUTTGART　Vol. 53　No. 18　p. 3211-3226　2021/09　Research paper (scientific journal)

Effects of Silver Carbonate and p-Nitrobenzoic Acid for Accelerating Palladium-Catalyzed Allylic C-H Acyloxylation

Aymen Skhiri, Haruki Nagae, Hayato Tsurugi, Masahiko Seki, Kazushi Mashima

ORGANIC LETTERS　Vol. 23　No. 18　p. 7044-7048　2021/09　Research paper (scientific journal)

Renaissance of Homogeneous Cerium Catalysts with Unique Ce(IV/III) Couple: Redox-Mediated Organic Transformations Involving Homolysis of Ce(IV)-Ligand Covalent Bonds

Hayato Tsurugi, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 143　No. 21　p. 7879-7890　2021/06　Research paper (scientific journal)

Direct Synthesis of Indoles from Azoarenes and Ketones with Bis(neopentylglycolato)diboron Using 4,4 '-Bipyridyl as an Organocatalyst

Luis C. Misal Castro, Ibrahim Sultan, Kohei Nishi, Hayato Tsurugi, Kazushi Mashima

JOURNAL OF ORGANIC CHEMISTRY　Vol. 86　No. 4　p. 3287-3299　2021/02　Research paper (scientific journal)

Syntheses of SGLT2 Inhibitors by Ni- and Pd-Catalyzed Fukuyama Coupling Reactions

Jalindar Talode, Daiki Kato, Haruki Nagae, Hayato Tsurugi, Masahiko Seki, Kazushi Mashima

The Journal of Organic Chemistry　Vol. 85　No. 19　p. 12382-12392　2020/10/02　Research paper (scientific journal)

Self-Assembled Multilayer Iron(0) Nanoparticle Catalyst for Ligand-Free Carbon–Carbon/Carbon–Nitrogen Bond-Forming Reactions

Toshiki Akiyama, Yuki Wada, Makito Yamada, Yasunori Shio, Tetsuo Honma, Shuhei Shimoda, Kazuki Tsuruta, Yusuke Tamenori, Hitoshi Haneoka, Takeyuki Suzuki, Kazuo Harada, Hayato Tsurugi, Kazushi Mashima, Jun-ya Hasegawa, Yoshihiro Sato, Mitsuhiro Arisawa

Organic Letters　Vol. 22　No. 18　p. 7244-7249　2020/09/18　Research paper (scientific journal)

Trivalent Rare-earth Metal Amide Complexes as Catalysts for Hydrosilylation of Benzophenone Derivatives with HN(SiHMe2)2 via Amine Exchange Reaction.

Koichi Shinohara, Hayato Tsurugi, Reiner Anwander, Kazushi Mashima

Chemistry (Weinheim an der Bergstrasse, Germany)　Vol. 26　No. 62　p. 14130-14136　2020/07/07　Research paper (scientific journal)

Cerium(IV) Carboxylate Photocatalyst for Catalytic Radical Formation from Carboxylic Acids: Decarboxylative Oxygenation of Aliphatic Carboxylic Acids and Lactonization of Aromatic Carboxylic Acids.

Satoru Shirase, Sota Tamaki, Koichi Shinohara, Keishi Hirosawa, Hayato Tsurugi, Tetsuya Satoh, Kazushi Mashima

Journal of the American Chemical Society　Vol. 142　No. 12　p. 5668-5675　2020/03/25　Research paper (scientific journal)

Chromium-catalyzed cyclopropanation of alkenes with bromoform in the presence of 2,3,5,6-tetramethyl-1,4-bis(trimethylsilyl)-1,4-dihydropyrazine

Hideaki Ikeda, Kohei Nishi, Hayato Tsurugi, Kazushi Mashima

Chemical Science　Vol. 11　No. 14　p. 3604-3609　2020/03/11　Research paper (scientific journal)

Synthesis, Structure, and Reactivity of Dicationic Bimetallic Tetrabenzyldihafnium Complexes Bearing a Chelating (2-Hydroxyethyl)amido Ligand

Mariko Inoue, Michael J. Lopez, Hayato Tsurugi, Kazushi Mashima

Organometallics　Vol. 39　No. 4　p. 614-622　2020/02/24　Research paper (scientific journal)

Cobalt-Catalyzed E-Selective Cross-Dimerization of Terminal Alkynes: A Mechanism Involving Cobalt(0/II) Redox Cycles

Yohei Ueda, Hayato Tsurugi, Kazushi Mashima

Angewandte Chemie International Edition　Vol. 59　No. 4　p. 1552-1556　2020/01/20　Research paper (scientific journal)

Reactivity of terminal imido complexes of group 4–6 metals: Stoichiometric and catalytic reactions involving cycloaddition with unsaturated organic molecules

Kento Kawakita, Bernard F. Parker, Yuya Kakiuchi, Hayato Tsurugi, Kazushi Mashima, John Arnold, Ian A. Tonks

Coordination Chemistry Reviews　Vol. 407　p. 213118-213118　2020/01/14　Research paper (scientific journal)

4,4'-Bipyridyl-Catalyzed Reduction of Nitroarenes by Bis(neopentylglycolato)diboron

Hosoya, Hiromu, Castro, Luis C. Misal, Sultan, Ibrahim, Nakajima, Yumiko, Ohmura, Toshimichi, Sato, Kazuhiko, Tsurugi, Hayato, Suginome, Michinori, Mashima, Kazushi

ORGANIC LETTERS　Vol. 21　No. 24　p. 9812-9817　2019/12　Research paper (scientific journal)

Synthesis of Pyridylimido Complexes of Tantalum and Niobium by Reductive Cleavage of the N=N Bond of 2,2 '-Azopyridine: Precursors for Early-Late Heterobimetallic Complexes

Kawakita, Kento, Kalduchi, Yuya, Beaumier, Evan P., Tonks, Ian A., Tsurugi, Hayato, Mashima, Kazushi

INORGANIC CHEMISTRY　Vol. 58　No. 22　p. 15155-15165　2019/11　Research paper (scientific journal)

Synthesis and Characterization of Alkoxide-Bridged Heterometallic Clusters of Cerium and Copper

Tsurugi, Hayato, Ikeda, Yuri, Shinohara, Koichi, Shirase, Satoru, Toya, Nozomi, Tanaka, Shinji, Mashima, Kazushi

INORGANIC CHEMISTRY　Vol. 58　No. 19　p. 12565-12572　2019/10　Research paper (scientific journal)

alpha-Diimine-Niobium Complex-Catalyzed Deoxychlorination of Benzyl Ethers with Silicon Tetrachloride

Parker, Bernard F., Hosoya, Hiromu, Arnold, John, Tsurugi, Hayato, Mashima, Kazushi

INORGANIC CHEMISTRY　Vol. 58　No. 19　p. 12825-12831　2019/10　Research paper (scientific journal)

Metal-free Reductive Deoxygenation of Sulfoxides by an Organosilicon Reductant, 1,1-Bis(trimethylsilyl)-1H,1 ' H-4,4 '-bipyridinylidene

Bhattacharjee, Argha, Hosoya, Hiromu, Yurino, Taiga, Tsurugi, Hayato, Mashima, Kazushi

CHEMISTRY LETTERS　Vol. 48　No. 8　p. 888-890　2019/08　Research paper (scientific journal)

Hydrodehalogenation of alkyl halides catalyzed by a trichloroniobium complex with a redox active alpha-diimine ligand

Nishiyama, Haruka, Hosoya, Hiromu, Parker, Bernard F., Arnold, John, Tsurugi, Hayato, Mashima, Kazushi

CHEMICAL COMMUNICATIONS　Vol. 55　No. 50　p. 7247-7250　2019/06　Research paper (scientific journal)

Salt-Free Reduction of Transition Metal Complexes by Bis(trimethylsilyl)cyclohexadiene, -dihydropyrazine, and-4,4 '-bipyridinylidene Derivatives

Tsurugi, Hayato, Mashima, Kazushi

ACCOUNTS OF CHEMICAL RESEARCH　Vol. 52　No. 3　p. 769-779　2019/03

Bis(imido)vanadium(V)-Catalyzed [2+2+1] Coupling of Alkynes and Azobenzenes Giving Multisubstituted Pyrroles

Kawakita, Kento, Beaumier, Evan P., Kakiuchi, Yuya, Tsurugi, Hayato, Tonks, Ian A., Mashima, Kazushi

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 141　No. 10　p. 4194-4198　2019/03　Research paper (scientific journal)

C-beta-C-beta Bond Fission of Metallacyclopentadiene over a Low-Valent Ditantalum Scaffold

Laskar, Payel, Yamamoto, Keishi, Nishi, Kohei, Ikeda, Hideaki, Tsurugi, Hayato, Mashima, Kazushi

ORGANOMETALLICS　Vol. 38　No. 3　p. 722-729　2019/02　Research paper (scientific journal)

Nickel-catalyzed cyanation of aryl halides and triflates using acetonitrile via C-CN bond cleavage assisted by 1,4-bis(trimethylsilyl)-2,3,5,6-tetramethyl-1,4-dihydropyrazine

Ueda, Yohei, Tsujimoto, Nagataka, Yurino, Taiga, Tsurugi, Hayato, Mashima, Kazushi

CHEMICAL SCIENCE　Vol. 10　No. 4　p. 994-999　2019/01　Research paper (scientific journal)

A New Protocol to Generate Catalytically Active Species of Group 4-6 Metals by Organosilicon-Based Salt-Free Reductants

Tsurugi, Hayato, Mashima, Kazushi

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 25　No. 4　p. 913-919　2019/01　Research paper (scientific journal)

Activation of O-2 by Organosilicon Reagents Yields Quantitative Amounts of H2O2 or (Me3Si)(2)O-2 for Efficient O-Transfer Reactions

Yamamoto, Keishi, Tanaka, Shinji, Hosoya, Hiromu, Tsurugi, Hayato, Mashima, Kazushi, Coperet, Christophe

HELVETICA CHIMICA ACTA　Vol. 101　No. 12　2018/12　Research paper (scientific journal)

In Situ Catalyst Generation and Benchtop-Compatible Entry Points for Ti-II/Ti-IV Redox Catalytic Reactions

Davis-Gilbert, Zachary W., Kawakita, Kento, Blechschmidt, Daniel R., Tsurugi, Hayato, Mashima, Kazushi, Tonks, Ian A.

ORGANOMETALLICS　Vol. 37　No. 23　p. 4439-4445　2018/12　Research paper (scientific journal)

Deprotonation of a formato ligand by a cis-coordinated carbyne ligand within a bis(phenolate) tungsten complex

Schindler, Tobias, Paparo, Albert, Nishiyama, Haruka, Spaniol, Thomas P., Tsurugi, Hayato, Mashima, Kazushi, Okuda, Jun

DALTON TRANSACTIONS　Vol. 47　No. 38　p. 13328-13331　2018/10　Research paper (scientific journal)

Bonding and structural features of metal-metal bonded homo- and hetero-dinuclear complexes supported by unsaturated hydrocarbon ligands

Tsurugi, Hayato, Laskar, Payel, Yamamoto, Keishi, Mashima, Kazushi

JOURNAL OF ORGANOMETALLIC CHEMISTRY　Vol. 869　p. 251-263　2018/08　Research paper (scientific journal)

Metal-Free Deoxygenation and Reductive Disilylation of Nitroarenes by Organosilicon Reducing Reagents

Bhattacharjee, Argha, Hosoya, Hiromu, Ikeda, Hideaki, Nishi, Kohei, Tsurugi, Hayato, Mashima, Kazushi

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 24　No. 44　p. 11278-11282　2018/08　Research paper (scientific journal)

Oxidation of Alcohols to Carbonyl Compounds Catalyzed by Oxo-Bridged Dinuclear Cerium Complexes with Pentadentate Schiff-Base Ligands under a Dioxygen Atmosphere

Shirase, Satoru, Shinohara, Koichi, Tsurugi, Hayato, Mashima, Kazushi

ACS CATALYSIS　Vol. 8　No. 8　p. 6939-6947　2018/08　Research paper (scientific journal)

Functionalization of the C-H Bond of N-Heteroaromatics Assisted by Early Transition-Metal Complexes

Nagae, Haruki, Kundu, Abhinanda, Inoue, Mariko, Tsurugi, Hayato, Mashima, Kazushi

ASIAN JOURNAL OF ORGANIC CHEMISTRY　Vol. 7　No. 7　p. 1256-1269　2018/07

Planar and Bent BN-Embedded p-Quinodimethanes Synthesized by Transmetalation of Bis(trimethylsilyl)-1,4-dihydropyrazines with Chloroborane

Noguchi, Mao, Suzuki, Katsunori, Kobayashi, Jun, Yurino, Taiga, Tsurugi, Hayato, Mashima, Kazushi, Yamashita, Makoto

ORGANOMETALLICS　Vol. 37　No. 12　p. 1833-1836　2018/06　Research paper (scientific journal)

Direct ortho-C-H Aminoalkylation of 2-Substituted Pyridine Derivatives Catalyzed by Yttrium Complexes with N,N '-Diarylethylenediamido Ligands

Kundu, Abhinanda, Inoue, Mariko, Nagae, Haruki, Tsurugi, Hayato, Mashima, Kazushi

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 140　No. 23　p. 7332-7342　2018/06　Research paper (scientific journal)

Metathesis cleavage of an N=N bond in benzo[c]cinnolines and azobenzenes by triply-bonded ditungsten complexes

Ikeda, Hideaki, Nishi, Kohei, Tsurugi, Hayato, Mashima, Kazushi

CHEMICAL COMMUNICATIONS　Vol. 54　No. 30　p. 3709-3711　2018/04　Research paper (scientific journal)

Silica-supported isolated molybdenum di-oxo species: formation and activation with organosilicon agent for olefin metathesis

Yamamoto, Keishi, Chan, Ka Wing, Mougel, Victor, Nagae, Haruki, Tsurugi, Hayato, Safonova, Olga V., Mashima, Kazushi, Coperet, Christophe

CHEMICAL COMMUNICATIONS　Vol. 54　No. 32　p. 3989-3992　2018/04　Research paper (scientific journal)

Lanthanide Complexes Supported by a Trizinc Crown Ether as Catalysts for Alternating Copolymerization of Epoxide and CO2: Telomerization Controlled by Carboxylate Anions

Nagae, Haruki, Aoki, Ryota, Akutagawa, Shin-nosuke, Kleemann, Julian, Tagawa, Risa, Schindler, Tobias, Choi, Gyeongshin, Spaniol, Thomas P., Tsurugi, Hayato, Okuda, Jun, Mashima, Kazushi

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　Vol. 57　No. 9　p. 2492-2496　2018/02　Research paper (scientific journal)

Organosilicon Reducing Reagents for Stereoselective Formations of Silyl Enol Ethers from alpha-Halo Carbonyl Compounds

Pramanik, Suman, Rej, Supriya, Kando, Shun, Tsurugi, Hayato, Mashima, Kazushi

JOURNAL OF ORGANIC CHEMISTRY　Vol. 83　No. 4　p. 2409-2417　2018/02　Research paper (scientific journal)

Multiply-bonded dinuclear complexes of early-transition metals as minimum entities of metal cluster catalysts

Rej, Supriya, Tsurugi, Hayato, Mashima, Kazushi

COORDINATION CHEMISTRY REVIEWS　Vol. 355　p. 223-239　2018/01

Dehalogenation of vicinal dihalo compounds by 1,1 '-bis(trimethylsilyl)-1H, 1 ' H-4,4 '- bipyridinylidene for giving alkenes and alkynes in a salt-free manner

Supriya Rej, Suman Pramanik, Hayato Tsurugi, Kazushi Mashima

CHEMICAL COMMUNICATIONS　Vol. 53　No. 98　p. 13157-13160　2017/12　Research paper (scientific journal)

Tantallacyclopentadiene as a unique metal-containing diene ligand coordinated to nickel for preparing tantalum-nickel heterobimetallic complexes

Payel Laskar, Keishi Yamamoto, Anga Srinivas, Alexis Mifleur, Haruki Nagae, Hayato Tsurugi, Kazushi Mashima

DALTON TRANSACTIONS　Vol. 46　No. 38　p. 13043-13054　2017/10　Research paper (scientific journal)

Propargylic C(sp(3))-H Bond Activation for Preparing eta(3)-Propargyl/Allenyl Complexes of Yttrium

Haruki Nagae, Abhinanda Kundu, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 36　No. 16　p. 3061-3067　2017/08　Research paper (scientific journal)

Structural and Electronic Noninnocence of alpha-Diimine Ligands on Niobium for Reductive C-Cl Bond Activation and Catalytic Radical Addition Reactions

Haruka Nishiyama, Hideaki Ikeda, Teruhiko Saito, Benjamin Kriegel, Hayato Tsurugi, John Arnold, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 139　No. 18　p. 6494-6505　2017/05　Research paper (scientific journal)

Inorganic-Salt-Free Reduction in Main-Group Chemistry: Synthesis of a Dibismuthene and a Distibene

Paresh Kumar Majhi, Hideaki Ikeda, Takahiro Sasamori, Hayato Tsurugi, Kazushi Mashima, Norihiro Tokitoh

ORGANOMETALLICS　Vol. 36　No. 7　p. 1224-1226　2017/04　Research paper (scientific journal)

Arylimido-Bridged Dinuclear Ti(mu-NAr)(2)Ti Scaffold for Alkyne Insertion into the ortho-C-H Bond of Arylimido Ligands

Haruki Nagae, Wataru Hato, Kento Kawakita, Hayato Tsurugi, Kazushi Mashima

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 23　No. 3　p. 586-596　2017/01　Research paper (scientific journal)

Mixed Ligated Tris(amidinate)dimolybdenum Complexes as Catalysts for Radical Addition of CCl4 to 1-Hexene: Leaving Ligand Lability Controls Catalyst Activity

Supriya Rej, Moumita Majumdar, Shun Kando, Yoshitaka Sugino, Hayato Tsurugi, Kazushi Mashima

INORGANIC CHEMISTRY　Vol. 56　No. 1　p. 634-644　2017/01　Research paper (scientific journal)

C(sp(3))-H Alkenylation Catalyzed by Cationic Alkylhafnium Complexes: Stereoselective Synthesis of Trisubstituted Alkenes from 2,6-Dimethylpyridines and Internal Alkynes

Michael J. Lopez, Ai Kondo, Haruki Nagae, Koji Yamamoto, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 35　No. 22　p. 3816-3827　2016/11　Research paper (scientific journal)

Synthesis and Characterization of Heterobimetallic Tantalum-Rhodium and Tantalum-Iridium Complexes Connected by a Tantalacyclopentadiene Fragment

Keishi Yamamoto, Kosuke Higashida, Haruki Nagae, Hayato Tsurugi, Kazushi Mashima

HELVETICA CHIMICA ACTA　Vol. 99　No. 11　p. 848-858　2016/11　Research paper (scientific journal)

Low Temperature Activation of Supported Metathesis Catalysts by Organosilicon Reducing Agents

Victor Mougel, Ka-Wing Chan, Georges Siddiqi, Kento Kawakita, Haruki Nagae, Hayato Tsurugi, Kazushi Mashima, Olga Safonova, Christophe Coperet

ACS CENTRAL SCIENCE　Vol. 2　No. 8　p. 569-576　2016/08　Research paper (scientific journal)

Synthesis and Reactions of Ditantalum-Allyl Complexes Derived from Intramolecular C-H Bond Activation of the Methylene of the Ethyl Group Bound to Ditantallacyclopentadiene

Keishi Yamamoto, Haruki Nagae, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 35　No. 14　p. 2384-2390　2016/07　Research paper (scientific journal)

Alkyne-Induced Facile C-C Bond Formation of Two eta(2)-Alkynes on Dinuclear Tantalum Bis(alkyne) Complexes To Give Dinuclear Tantalacyclopentadienes

Keishi Yamamoto, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 35　No. 10　p. 1573-1581　2016/05　Research paper (scientific journal)

Reversible Transformation between Alkylidene, Alkylidyne, and Vinylidene Ligands in High-Valent Bis(phenolate) Tungsten Complexes

Haruka Nishiyama, Keishi Yamamoto, Andreas Sauer, Hideaki Ikeda, Thomas P. Spaniol, Hayato Tsurugi, Kazushi Mashima, Jun Okuda

ORGANOMETALLICS　Vol. 35　No. 7　p. 932-935　2016/04　Research paper (scientific journal)

Cerium-Complex-Catalyzed Oxidation of Arylmethanols under Atmospheric Pressure of Dioxygen and Its Mechanism through a Side-On -Peroxo Dicerium(IV) Complex

Mitali Paul, Satoru Shirase, Yuma Morimoto, Laurent Mathey, Balasubramanian Murugesapandian, Shinji Tanaka, Shinobu Itoh, Hayato Tsurugi, Kazushi Mashima

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 22　No. 12　p. 4008-4014　2016/03　Research paper (scientific journal)

Chemo- and Regioselective Reduction of 5,15-Diazaporphyrins Providing Antiaromatic Azaporphyrinoids

Ayaka Yamaji, Hayato Tsurugi, Yoshihiro Miyake, Kazushi Mashima, Hiroshi Shinokubo

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 22　No. 12　p. 3956-3961　2016/03　Research paper (scientific journal)

Synthesis and Characterization of Paramagnetic Tungsten Imido Complexes Bearing alpha-Diimine Ligands

Hiromasa Tanahashi, Hideaki Ikeda, Hayato Tsurugi, Kazushi Mashima

INORGANIC CHEMISTRY　Vol. 55　No. 4　p. 1446-1452　2016/02　Research paper (scientific journal)

Recent Developments in Homogeneous Organomagnesium Catalysis

Raphael Rochat, Michael J. Lopez, Hayato Tsurugi, Kazushi Mashima

CHEMCATCHEM　Vol. 8　No. 1　p. 10-20　2016/01　Research paper (scientific journal)

Mechanistic understanding of alkyne cyclotrimerization on mononuclear and dinuclear scaffolds: [4+2] cycloaddition of the third alkyne onto metallacyclopentadienes and dimetallacyclopentadienes

Keishi Yamamoto, Haruki Nagae, Hayato Tsurugi, Kazushi Mashima

DALTON TRANSACTIONS　Vol. 45　No. 43　p. 17072-17081　2016　Research paper (scientific journal)

Salt- Free Reduction of Nonprecious Transition- Metal Compounds: Generation of Amorphous Ni Nanoparticles for Catalytic C-C Bond Formation

Taiga Yurino, Yohei Ueda, Yoshiki Shimizu, Shinji Tanaka, Haruka Nishiyama, Hayato Tsurugi, Kazuhiko Sato, Kazushi Mashima

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　Vol. 54　No. 48　p. 14437-14441　2015/11　Research paper (scientific journal)

Cerium(IV) Hexanuclear Clusters from Cerium(III) Precursors: Molecular Models for Oxidative Growth of Ceria Nanoparticles

Laurent Mathey, Mitali Paul, Christophe Coperet, Hayato Tsurugi, Kazushi Mashima

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 21　No. 38　p. 13454-13461　2015/09　Research paper (scientific journal)

Direct Evidence for a [4+2] Cycloaddition Mechanism of Alkynes to Tantallacyclopentadiene on Dinuclear Tantalum Complexes as a Model of Alkyne Cyclotrimerization

Keishi Yamamoto, Hayato Tsurugi, Kazushi Mashima

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 21　No. 32　p. 11369-11377　2015/08　Research paper (scientific journal)

Reduction of ((BuN)-Bu-t=)NbCl3(py)(2) in a Salt-Free Manner for Generating Nb(IV) Dinuclear Complexes and Their Reactivity toward Benzo[c]cinnoline

Teruhiko Saito, Haruka Nishiyama, Kento Kawakita, Michael Nechayev, Benjamin Kriegel, Hayato Tsurugi, John Arnold, Kazushi Mashima

INORGANIC CHEMISTRY　Vol. 54　No. 12　p. 6004-6009　2015/06　Research paper (scientific journal)

Organomagnesium-Catalyzed Isomerization of Terminal Alkynes to Allenes and Internal Alkynes

Raphael Rochat, Koji Yamamoto, Michael J. Lopez, Haruki Nagae, Hayato Tsurugi, Kazushi Mashima

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 21　No. 22　p. 8112-8120　2015/05　Research paper (scientific journal)

Synthesis of Alkyl and Alkylidene Complexes of Tungsten Bearing Imido and Redox-Active a-Diimine or o-Iminoquinone Ligands and Their Application as Catalysts for Ring-Opening Metathesis Polymerization of Norbornene

Hiromasa Tanahashi, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 34　No. 4　p. 731-741　2015/02　Research paper (scientific journal)

Non-bridged half-metallocene complexes of group 4-6 metals with chelating ligands as well-defined catalysts for alpha-olefin polymerization

Hayato Tsurugi, Keishi Yamamoto, Raphael Rochat, Kazushi Mashima

POLYMER JOURNAL　Vol. 47　No. 1　p. 2-17　2015/01

Aminomethylation Reaction of ortho-Pyridyl C-H Bonds Catalyzed by Group 3 Metal Triamido Complexes

Haruki Nagae, Yu Shibata, Hayato Tsurugi, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 137　No. 2　p. 640-643　2015/01　Research paper (scientific journal)

2,2 '-Bipyridyl formation from 2-arylpyridines through bimetallic diyttrium intermediate

Yu Shibata, Haruki Nagae, Shiki Sumiya, Raphael Rochat, Hayato Tsurugi, Kazushi Mashima

CHEMICAL SCIENCE　Vol. 6　No. 10　p. 5394-5399　2015　Research paper (scientific journal)

Mixed-ligand complexes of paddlewheel dinuclear molybdenum as hydrodehalogenation catalysts for polyhaloalkanes

Hayato Tsurugi, Akio Hayakawa, Shun Kando, Yoshitaka Sugino, Kazushi Mashima

CHEMICAL SCIENCE　Vol. 6　No. 6　p. 3434-3439　2015　Research paper (scientific journal)

1,4-Bis(trimethylsilyl)-1,4-diaza-2,5-cyclohexadienes as Strong Salt-Free Reductants for Generating Low-Valent Early Transition Metals with Electron-Donating Ligands

Teruhiko Saito, Haruka Nishiyama, Hiromasa Tanahashi, Kento Kawakita, Hayato Tsurugi, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 136　No. 13　p. 5161-5170　2014/04　Research paper (scientific journal)

Supramolecular assemblies of multi-nuclear transition metal complexes: Synthesis and redox properties

Shinji Tanaka, Hayato Tsurugi, Kazushi Mashima

COORDINATION CHEMISTRY REVIEWS　Vol. 265　p. 38-51　2014/04

Direct functionalization of unactivated C-H bonds catalyzed by group 3-5 metal alkyl complexes

Hayato Tsurugi, Koji Yamamoto, Haruki Nagae, Hiroshi Kaneko, Kazushi Mashima

DALTON TRANSACTIONS　Vol. 43　No. 6　p. 2331-2343　2014　Research paper (scientific journal)

Hemilabile N-Xylyl-N '-methylperimidine Carbene Iridium Complexes as Catalysts for C-H Activation and Dehydrogenative Silylation: Dual Role of N-Xylyl Moiety for ortho-C-H Bond Activation and Reductive Bond Cleavage

Gyeongshin Choi, Hayato Tsurugi, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 135　No. 35　p. 13149-13161　2013/09　Research paper (scientific journal)

C-H Metalation Reaction of Diarylamine and Carbazole by Alkylaluminum Complexes at the Heteroatom-Bridged Dimeric Aluminum Core

Koji Yamamoto, Yu Shibata, Yuki Kashiwa, Ai Kondo, Hayato Tsurugi, Kazushi Mashima

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY　Vol. 2013　No. 22-23　p. 3821-3825　2013/08　Research paper (scientific journal)

Salt-Free Reducing Reagent of Bis(trimethylsilyl)cyclohexadiene Mediates Multielectron Reduction of Chloride Complexes of W(VI) and W(IV)

Hayato Tsurugi, Hiromasa Tanahashi, Haruka Nishiyama, Waldemar Fegler, Teruhiko Saito, Andreas Sauer, Jun Okuda, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 135　No. 16　p. 5986-5989　2013/04　Research paper (scientific journal)

Synthesis of Rare-Earth-Metal Iminopyrrolyl Complexes from Alkyl Precursors: Ln -> Al N-Ancillary Ligand Transfer

Hiroshi Kaneko, H. Martin Dietrich, Christoph Schaedle, Caecilia Maichle-Moessmer, Hayato Tsurugi, Karl W. Tornroos, Kazushi Mashima, Reiner Anwander

ORGANOMETALLICS　Vol. 32　No. 5　p. 1199-1208　2013/03　Research paper (scientific journal)

Tetraplatinum cluster complexes bearing hydrophilic anchors as precursors for gamma-Al2O3-supported platinum nanoparticles

Shinji Tanaka, Naoto Nagata, Naoki Tagawa, Hirohito Hirata, Shin-ichi Matsumoto, Hayato Tsurugi, Kazushi Mashima

DALTON TRANSACTIONS　Vol. 42　No. 35　p. 12662-12666　2013　Research paper (scientific journal)

Isospecific polymerization of 1-hexene by C-1-symmetric half-metallocene dimethyl complexes of group 4 metals with bidentate N-substituted iminomethylpyrrolyl ligands

Takahiro Yasumoto, Keishi Yamamoto, Hayato Tsurugi, Kazushi Mashima

DALTON TRANSACTIONS　Vol. 42　No. 25　p. 9120-9128　2013　Research paper (scientific journal)

Dianion and Monoanion Ligation of 1,4-Diaza-1,3-butadiene to Barium, Strontium, and Calcium

Tarun K. Panda, Hiroshi Kaneko, Olaf Michel, Kuntal Pal, Hayato Tsurugi, Karl W. Tornroos, Reiner Anwander, Kazushi Mashima

ORGANOMETALLICS　Vol. 31　No. 8　p. 3178-3184　2012/04　Research paper (scientific journal)

Synthesis of Ir[mu 2-(N-N)]M (M = Ir and Ru) Homo- and Heterobimetallic Complexes through a Condensation Reaction of N-Amino and Formyl Groups Bound to Mononuclear (eta n-CnMen)M Units (n=5 for M = Ir; n=6 for M = Ru)

Keisuke Nakao, Gyeongshin Choi, Yuki Konishi, Hayato Tsurugi, Kazushi Mashima

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY　No. 9　p. 1469-1476　2012/03　Research paper (scientific journal)

Preparation and Structure of Iminopyrrolyl and Amidopyrrolyl Complexes of Group 2 Metals

Tarun K. Panda, Keishi Yamamoto, Koji Yamamoto, Hiroshi Kaneko, Yi Yang, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 31　No. 6　p. 2268-2274　2012/03　Research paper (scientific journal)

Diene Dissolution of the Heavier Alkaline Earth Metals

Olaf Michel, Hiroshi Kaneko, Hayato Tsurugi, Koji Yamamoto, Karl W. Tornroos, Reiner Anwander, Kazushi Mashima

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY　No. 6　p. 998-1003　2012/02　Research paper (scientific journal)

End-Functionalized Polymerization of 2-Vinylpyridine through Initial C-H Bond Activation of N-Heteroaromatics and Internal Alkynes by Yttrium Ene-Diamido Complexes

Hiroshi Kaneko, Haruki Nagae, Hayato Tsurugi, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 133　No. 49　p. 19626-19629　2011/12　Research paper (scientific journal)

Carbon Radical Generation by d(0) Tantalum Complexes with alpha-Diimine Ligands through Ligand-Centered Redox Processes

Hayato Tsurugi, Teruhiko Saito, Hiromasa Tanahashi, John Arnold, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 133　No. 46　p. 18673-18683　2011/11　Research paper (scientific journal)

Synthesis and Reaction of Neutral and Cationic Alkyltantalum Complexes with a Linked Cyclopentadienyl-Carboranyl Ligand

Hayato Tsurugi, Zaozao Qiu, Koji Yamamoto, Rocio Arteaga-Mueller, Kazushi Mashima, Zuowei Xie

ORGANOMETALLICS　Vol. 30　No. 21　p. 5960-5964　2011/11　Research paper (scientific journal)

Reactivity of Permethylated Magnesium Complexes toward beta-Diimines

Olaf Michel, Koji Yamamoto, Hayato Tsurugi, Caecilia Maichle-Moessmer, Karl W. Toernroos, Kazushi Mashima, Reiner Anwander

ORGANOMETALLICS　Vol. 30　No. 14　p. 3818-3825　2011/07　Research paper (scientific journal)

Oxidant-Free Direct Coupling of Internal Alkynes and 2-Alkylpyridine via Double C-H Activations by Alkylhafnium Complexes

Hayato Tsurugi, Koji Yamamoto, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 133　No. 4　p. 732-735　2011/02　Research paper (scientific journal)

Dinuclear molybdenum cluster-catalyzed radical addition and polymerization reactions by tuning the redox potential of a quadruple bonded Mo-2 core

Hayato Tsurugi, Kohei Yamada, Moumita Majumdar, Yoshitaka Sugino, Akio Hayakawa, Kazushi Mashima

DALTON TRANSACTIONS　Vol. 40　No. 37　p. 9358-9361　2011　Research paper (scientific journal)

First isolation of fully delocalized mixed-valent imido-bridged [Ti-2](7+) complexes by one-electron reduction of [(C5R5)TiCl](2)(mu-NAr)(2)

Hayato Tsurugi, Haruki Nagae, Kazushi Mashima

CHEMICAL COMMUNICATIONS　Vol. 47　No. 19　p. 5620-5622　2011　Research paper (scientific journal)

Carboxylate Ligand-Induced Intramolecular C-H Bond Activation of Iridium Complexes with N-Phenylperimidine-Based Carbene Ligands

Hayato Tsurugi, Shingo Fujita, Gyeongshin Choi, Tsuneaki Yamagata, Syoji Ito, Hiroshi Miyasaka, Kazushi Mashima

ORGANOMETALLICS　Vol. 29　No. 18　p. 4120-4129　2010/09　Research paper (scientific journal)

Intramolecular Alkylation of alpha-Diimine Ligands Giving Amido-Imino and Diamido Scandium and Yttrium Complexes as Catalysts for Intramolecular Hydroamination/Cyclization

Hiroshi Kaneko, Hayato Tsurugi, Tarun K. Panda, Kazushi Mashima

ORGANOMETALLICS　Vol. 29　No. 15　p. 3463-3466　2010/08　Research paper (scientific journal)

Salt Metathesis and Direct Reduction Reactions Leading to Group 3 Metal Complexes with a N,N '-Bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene Ligand and Their Solid-State Structures

Tarun K. Panda, Hiroshi Kaneko, Kuntal Pal, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 29　No. 11　p. 2610-2615　2010/06　Research paper (scientific journal)

Silicon-Bridged Tetramethylcyclopentadienyl-Phenoxy Complexes of Tantalum: Preparation and Alkylation of Et2Si(eta(5)-C5Me4)(3-Bu-t-5-Me-2-C6H2O)TaCl3 and Generation of Its Cationic Complex

Taichi Senda, Hidenori Hanaoka, Yoshiaki Oda, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 29　No. 9　p. 2080-2084　2010/05　Research paper (scientific journal)

Rational Design of Silicon-Bridged Fluorenyl-Phenoxy Group 4 Metal Complexes as Catalysts for Producing High Molecular Weight Copolymers of Ethylene and 1-Hexene at Elevated Temperature

Taichi Senda, Hidenori Hanaoka, Shinya Nakahara, Yoshiaki Oda, Hayato Tsurugi, Kazushi Mashima

MACROMOLECULES　Vol. 43　No. 5　p. 2299-2306　2010/03　Research paper (scientific journal)

Copper-Mediated Direct Cross-Coupling of 1,3,4-Oxadiazoles and Oxazoles with Terminal Alkynes

Masanori Kitahara, Koji Hirano, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 16　No. 6　p. 1772-1775　2010　Research paper (scientific journal)

Highly Reactive Metal-Nitrogen Bond Induced C-H Bond Activation and Azametallacycle Formation

Tarun K. Panda, Hayato Tsurugi, Kuntal Pal, Hiroshi Kaneko, Kazushi Mashima

ORGANOMETALLICS　Vol. 29　No. 1　p. 34-37　2010/01　Research paper (scientific journal)

Rhodium/Phosphine/Amine center dot HBr Catalyst System for Highly Selective Cross-Cyclodimerization of Aryl- and Alkylalkynes: Efficient Access to Multisubstituted Naphthalene Derivatives

Koichi Sakabe, Hayato Tsurugi, Koji Hirano, Tetsuya Satoh, Masahiro Miura

CHEMISTRY-A EUROPEAN JOURNAL　Vol. 16　No. 2　p. 445-449　2010　Research paper (scientific journal)

Titanium Complexes of Silicon-Bridged Cyclopentadienyl-Phenoxy Ligands Modified with Fused-Thiophene: Synthesis, Characterization, and Their Catalytic Performance in Copolymerization of Ethylene and 1-Hexene

Taichi Senda, Hidenori Hanaoka, Yoshiya Okado, Yoshiaki Oda, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 28　No. 24　p. 6915-6926　2009/12

Substituent Effects on Silicon of Bridged Tetramethylcyclopentadienyl-Phenoxy Titanium Complexes for Controlling the Regiochemistry and Molecular Weight in 1-Olefin Polymerization

Taichi Senda, Hidenori Hanaoka, Takahiro Hino, Yoshiaki Oda, Hayato Tsurugi, Kazushi Mashima

MACROMOLECULES　Vol. 42　No. 21　p. 8006-8009　2009/11　Research paper (scientific journal)

Synthesis and Characterization of Proximal Dinuclear Complexes of Palladium Supported by 2,6-Bis(arylimino)phenoxy (aryl = 2,6-diisopropylphenyl and 2,4,6-tri-tert-butylphenyl) and 3,6-Bis(imino(2,6-diisopropylphenyl))pyridazine Ligands

Kouji Ohno, Kenji Arima, Shinji Tanaka, Tsuneaki Yamagata, Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 28　No. 11　p. 3256-3263　2009/06　Research paper (scientific journal)

New Tantalum Ligand-Free Catalyst System for Highly Selective Trimerization of Ethylene Affording 1-Hexene: New Evidence of a Metallacycle Mechanism

Rocio Arteaga-Mueller, Hayato Tsurugi, Teruhiko Saito, Masao Yanagawa, Seiji Oda, Kazushi Mashima

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　Vol. 131　No. 15　p. 5370-+　2009/04　Research paper (scientific journal)

Tantalum-Benzylidene Complexes Supported by C5Me5 and Diazadiene Ligands: Synthesis, Kinetic Analysis of the Formation, and Reactive Studies

Hayato Tsurugi, Takashi Ohno, Tsuyoshi Kanayama, Rocio A. Arteaga-Mueller, Kazushi Mashima

ORGANOMETALLICS　Vol. 28　No. 6　p. 1950-1960　2009/03　Research paper (scientific journal)

Controlled Benzylation of alpha-Diimine Ligands Bound to Zirconium and Hafnium: An Alternative Method for Preparing Mono- and Bis(amido)M(CH2Ph)(n) (n=2, 3) Complexes as Catalyst Precursors for Isospecific Polymerization of alpha-Olefins

Hayato Tsurugi, Ryuji Ohnishi, Hiroshi Kaneko, Tarun K. Panda, Kazushi Mashima

ORGANOMETALLICS　Vol. 28　No. 3　p. 680-687　2009/02　Research paper (scientific journal)

Ligand-Controlled Cross-Dimerization and -Trimerization of Alkynes under Nickel Catalysis

Naoto Matsuyama, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

ADVANCED SYNTHESIS & CATALYSIS　Vol. 350　No. 14-15　p. 2274-2278　2008/10　Research paper (scientific journal)

Rhodium-catalyzed regioselective arylation of phenylazoles and related compounds with arylboron reagents via C - H bond cleavage

Sawako Miyamura, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

JOURNAL OF ORGANOMETALLIC CHEMISTRY　Vol. 693　No. 14　p. 2438-2442　2008/07　Research paper (scientific journal)

Rhodium-catalyzed anti selective cross-addition of bis(trimethylsilyl)-acetylene to diarylacetylenes via carbon-silicon bond cleavage

Akinobu Horita, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

ORGANIC LETTERS　Vol. 10　No. 9　p. 1751-1754　2008/05　Research paper (scientific journal)

Palladium-catalyzed perarylation of 3-thiophene- and 3-furancarboxylic acids accompanied by C-H bond cleavage and decarboxylation

Masaya Nakano, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

ORGANIC LETTERS　Vol. 10　No. 9　p. 1851-1854　2008/05　Research paper (scientific journal)

Regioselective C-H functionalization directed by a removable carboxyl group: Palladium-catalyzed vinylation at the unusual position of indole and related heteroaromatic rings

Atsushi Maehara, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

ORGANIC LETTERS　Vol. 10　No. 6　p. 1159-1162　2008/03　Research paper (scientific journal)

Copper-mediated direct arylation of benzoazoles with aryl iodides

Tomoki Yoshizumi, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

TETRAHEDRON LETTERS　Vol. 49　No. 10　p. 1598-1600　2008/03　Research paper (scientific journal)

Palladium/phosphite-catalyzed 1,4-addition of arylboronic acids to acrylic acid derivatives

Hakaru Horiguchi, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

JOURNAL OF ORGANIC CHEMISTRY　Vol. 73　No. 4　p. 1590-1592　2008/02　Research paper (scientific journal)

Palladium/phosphite or phosphate catalyzed oxidative coupling of arylboronic acids with alkynes to produce 1,4-diaryl-1,3-butadienes

Hakaru Horiguchi, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

ADVANCED SYNTHESIS & CATALYSIS　Vol. 350　No. 3　p. 509-514　2008/02　Research paper (scientific journal)

Rhodium-catalyzed oxidative coupling between salicylaldehydes and internal alkynes with C-H bond cleavage to produce 2,3-disubstituted chromones

Masaki Shimizu, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

CHEMISTRY-AN ASIAN JOURNAL　Vol. 3　No. 5　p. 881-886　2008　Research paper (scientific journal)

Fluorescent naphthyl- and anthrylazoles from the catalytic coupling of phenylazoles with internal alkynes through the cleavage of multiple, C-H bonds

Nobuyoshi Umeda, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　Vol. 47　No. 21　p. 4019-4022　2008　Research paper (scientific journal)

Rhodium-catalyzed oxidative coupling of triarylmethanols with internal alkynes via successive C-H and C-C bond cleavages

Toshihiko Uto, Masaki Shimizu, Kenji Ueura, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

JOURNAL OF ORGANIC CHEMISTRY　Vol. 73　No. 1　p. 298-300　2008/01　Research paper (scientific journal)

Catalytic Synthesis of Oligoene and Enyne Derivatives through Carbometalation of Internal Alkynes

Tetsuya Satoh, Hayato Tsurugi, Masahiro Miura

CHEMICAL RECORD　Vol. 8　No. 5　p. 326-336　2008　Research paper (scientific journal)

Rhodium-catalyzed (E)-selective cross-dimerization of terminal alkynes

Takashi Katagiri, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

CHEMICAL COMMUNICATIONS　No. 29　p. 3405-3407　2008　Research paper (scientific journal)

Benzylation of alpha-diimine ligands bound to zirconium and hafnium. A new convenient route to olefin polymerization catalysts

Kazushi Mashima, Ryuji Ohnishi, Tsuneaki Yamagata, Hayato Tsurugi

CHEMISTRY LETTERS　Vol. 36　No. 12　p. 1420-1421　2007/12　Research paper (scientific journal)

Synthesis of alkylated benzo[2,1-b : 3,4-b ']dithiophenes by annulative coupling and their direct arylation under palladium catalysis

Hiroyuki Watanabe, Jun Kumagai, Hayato Tsurugi, Tetsuya Satoh, Masahiro Miura

CHEMISTRY LETTERS　Vol. 36　No. 11　p. 1336-1337　2007/11　Research paper (scientific journal)

Rhodium-catalyzed selective cross-coupling of internal alkynes with a terminal silylacetylene

Takashi Katagiri, Hayato Tsurugi, Atsushi Funayama, Tetsuya Satoh, Masahiro Miura

CHEMISTRY LETTERS　Vol. 36　No. 7　p. 830-831　2007/07　Research paper (scientific journal)

Regio- and stereoselective cross-coupling of tert-propargyl alchols with bis(trimethylsilyl)acetylene and its utilization in constructing a fluorescent donor-acceptor system

Akinobu Horita, Hayato Tsurugi, Atsushi Funayama, Tetsuya Satoh, Masahiro Miura

ORGANIC LETTERS　Vol. 9　No. 11　p. 2231-2233　2007/05　Research paper (scientific journal)

Preparation and characterization of a zwitterionic (iminopyrrolyl) zirconium complex with benzylaluminate anion and its catalytic performance for 1-hexene polymerization

Hayato Tsurugi, Kazushi Mashima

ORGANOMETALLICS　Vol. 25　No. 22　p. 5210-5212　2006/10　Research paper (scientific journal)

Preparation and characterization of iminopyrrolyl hafnium complexes as catalyst precursors for alpha-olefin polymerization

Hayato Tsurugi, Yutaka Matsuo, Kazushi Mashima

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL　Vol. 254　No. 1-2　p. 131-137　2006/07　Research paper (scientific journal)

Synthesis, structure, and reactivity of tantalum and tungsten homoenolate complexes

Hayato Tsurugi, Takashi Ohno, Tsuneaki Yamagata, Kazushi Mashima

ORGANOMETALLICS　Vol. 25　No. 13　p. 3179-3189　2006/06

Neutral versus cationic Group 3 metal alkyl catalysts: performance in intramolecular hydroamination/cyclisation

S Bambirra, H Tsurugi, D van Leusen, B Hessen

DALTON TRANSACTIONS　No. 9　p. 1157-1161　2006　Research paper (scientific journal)

Uniqueness and versatility of iminopyrrolyl ligands for transition metal complexes

K Mashima, H Tsurugi

JOURNAL OF ORGANOMETALLIC CHEMISTRY　Vol. 690　No. 20　p. 4414-4423　2005/10　Research paper (scientific journal)

Intramolecular benzylation of an imino group of tridentate 2,5-bis(N-aryliminomethyl)pyrrolyl ligands bound to zirconium and hafnium gives amido-pyrrolyl complexes that catalyze ethylene polymerization

H Tsurugi, Y Matsuo, T Yamagata, K Mashima

ORGANOMETALLICS　Vol. 23　No. 11　p. 2797-2805　2004/05　Research paper (scientific journal)

Synthesis and structural characterization of 2,5-Bis(N-aryliminomethyl)pyrrolyl complexes of aluminum

Y Matsuo, H Tsurugi, T Yamagata, K Tani, K Mashima

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　Vol. 76　No. 10　p. 1965-1968　2003/10　Research paper (scientific journal)

Unusual enhancement of ethylene polymerization activity of benzyl zirconium complexes by benzylation of the imino moiety of 2-(N-aryliminomethyl)pyrrolyl ligand

H Tsurugi, T Yamagata, K Tani, K Mashima

CHEMISTRY LETTERS　Vol. 32　No. 8　p. 756-757　2003/08　Research paper (scientific journal)