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Kazushi Mashima

Kazushi Mashima

Osaka University
Japan

D-Index & Metrics

Chemistry

D-Index
73
Citations
16353
World Ranking
5075
National Ranking
294

Kazushi Mashima publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Kazushi Mashima sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 460 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Kazushi Mashima D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Kazushi Mashima sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 73 D-Index — 73rd percentile

73% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Research.com Recognitions

  • 2018 - Member of the European Academy of Sciences

Overview

Kazushi Mashima is affiliated with Osaka University in Japan and has contributed extensively to the fields of Chemistry and Materials Science, with a particular focus on Materials Chemistry, Organic Chemistry, and Inorganic Chemistry. Their research addresses a variety of specialized areas including Crystallization and Solubility Studies, X-ray Diffraction in Crystallography, Asymmetric Hydrogenation and Catalysis, Catalytic C-H Functionalization Methods, Carbon dioxide utilization in catalysis, Catalytic Cross-Coupling Reactions, and Chemical Synthesis and Reactions.

Their publication record includes notable recent papers such as:

  • Cerium(IV) Carboxylate Photocatalyst for Catalytic Radical Formation from Carboxylic Acids: Decarboxylative Oxygenation of Aliphatic Carboxylic Acids and Lactonization of Aromatic Carboxylic Acids, 2020, Journal of the American Chemical Society
  • Renaissance of Homogeneous Cerium Catalysts with Unique Ce(IV/III) Couple: Redox-Mediated Organic Transformations Involving Homolysis of Ce(IV)-Ligand Covalent Bonds, 2021, Journal of the American Chemical Society
  • Reactivity of terminal imido complexes of group 4-6 metals: Stoichiometric and catalytic reactions involving cycloaddition with unsaturated organic molecules, 2020, Coordination Chemistry Reviews
  • Mechanistic Study of Ni and Cu Dual Catalyst for Asymmetric C-C Bond Formation; Asymmetric Coupling of 1,3-Dienes with C-nucleophiles to Construct Vicinal Stereocenters, 2021, ACS Catalysis
  • Alternating Copolymerization of CO2 and Cyclohexene Oxide Catalyzed by Cobalt-Lanthanide Mixed Multinuclear Complexes, 2020, Inorganic Chemistry

Frequent collaborators in their research include Hayato Tsurugi, Haruki Nagae, Kohei Nishi, Satoru Shirase, and Masahiko Seki. The breadth of collaborations suggests active engagement in joint scientific endeavors.

Mashima's work has been published in several venues multiple times, including:

  • The Cambridge Structural Database
  • Chemistry - A European Journal
  • ACS Catalysis
  • Journal of the American Chemical Society
  • The Journal of Organic Chemistry

Recognition of their academic contributions includes membership in the European Academy of Sciences since 2018.

Best Publications

  • Practical synthesis of (R)- or (S)-2,2'-bis(diarylphosphino)-1,1'-binaphthyls (BINAPs)

    Hidemasa Takaya;Kazushi Mashima;Kinko Koyano;Misao Yagi

  • Cationic BINAP-Ru(II) Halide Complexes: Highly Efficient Catalysts for Stereoselective Asymmetric Hydrogenation of .alpha.- and .beta.-Functionalized Ketones

    Kazushi Mashima;Koh-hei Kusano;Naomasa Sato;Yoh-ichi Matsumura

  • Magnesium hydridotriphenylborate [Mg(thf)6][HBPh3]2: a versatile hydroboration catalyst

    Debabrata Mukherjee;Satoru Shirase;Thomas P. Spaniol;Kazushi Mashima

  • Platinum-catalyzed direct amination of allylic alcohols under mild conditions: ligand and microwave effects, substrate scope, and mechanistic study.

    Takashi Ohshima;Yoshiki Miyamoto;Junji Ipposhi;Yasuhito Nakahara

  • 1,3-Diene complexes of zirconium and hafnium prepared by the reaction of enediylmagnesium with MCl2Cp2. A remarkable difference between the zirconium and hafnium analogs as revealed by proton NMR and electronic spectra

    H. Yasuda;Y. Kajihara;K. Mashima;K. Nagasuna

  • Asymmetric Transfer Hydrogenation of Ketonic Substrates Catalyzed by (η5-C5Me5)MCl Complexes (M = Rh and Ir) of (1S,2S)-N-(p-Toluenesulfonyl)-1,2-diphenylethylenediamine

    Kazushi Mashima;Tomoyuki Abe;Kazuhide Tani

  • Enzyme-like chemoselective acylation of alcohols in the presence of amines catalyzed by a tetranuclear zinc cluster.

    Takashi Ohshima;Takanori Iwasaki;Yusuke Maegawa;and Asako Yoshiyama

  • Asymmetric Hydrogenation of Isoquinolinium Salts Catalyzed by Chiral Iridium Complexes: Direct Synthesis for Optically Active 1,2,3,4‐Tetrahydroisoquinolines

    Atsuhiro Iimuro;Kenta Yamaji;Sathaiah Kandula;Takuto Nagano

  • Synthesis of new cationic BINAP–ruthenium(II) complexes and their use in asymmetric hydrogenation [BINAP = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl]

    Kazushi Mashima;Koh-hei Kusano;Tetsuo Ohta;Ryoji Noyori

  • 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

  • Sodium methoxide: a simple but highly efficient catalyst for the direct amidation of esters.

    Takashi Ohshima;Yukiko Hayashi;Kazushi Agura;Yuka Fujii

  • Unprecedented halide dependence on catalytic asymmetric hydrogenation of 2-aryl- and 2-alkyl-substituted quinolinium salts by using Ir complexes with difluorphos and halide ligands.

    Hiroshi Tadaoka;Damien Cartigny;Takuto Nagano;Tushar Gosavi

  • Direct use of allylic alcohols for platinum-catalyzed monoallylation of amines.

    Masaru Utsunomiya;Yoshiki Miyamoto;Junji Ipposhi;Takashi Ohshima

  • 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

  • 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

  • Unique bonding and geometry in .eta.-cyclopentadienyltantalum-diene complexes. Preparation, x-ray structural analyses, and EHMO calculations

    Hajime Yasuda;Kazuyuki Tatsumi;Takuji Okamoto;Kazushi Mashima

  • 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

  • Living Polymerization of Ethylene Catalyzed by Diene Complexes of Niobium and Tantalum, M(.eta.5-C5Me5)(.eta.4-diene)X2 and M(.eta.5-C5Me5)(.eta.4-diene)2 (M = Nb and Ta), in the Presence of Methylaluminoxane

    Kazushi Mashima;Shinjiro Fujikawa;Yoshiyuki Tanaka;Hisao Urata

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

    Rocío Arteaga-Müller;Hayato Tsurugi;Teruhiko Saito;Masao Yanagawa

  • Efficient cyclic carbonate synthesis catalyzed by zinc cluster systems under mild conditions

    Yi Yang;Yukiko Hayashi;Yuka Fujii;Takuto Nagano

  • Asymmetric hydrogenation of cycloalkanones catalyzed by BINAP-iridium(I)-aminophosphine systems

    Xiaoyong Zhang;Takanao Taketomi;Takashi Yoshizumi;Hidenori Kumobayashi

Frequent Co-Authors

Hayato Tsurugi
Hayato Tsurugi Osaka University
Takashi Ohshima
Takashi Ohshima Kyushu University
Akira Nakamura
Akira Nakamura Osaka University
Hidemasa Takaya
Hidemasa Takaya Kyoto University
Jun Okuda
Jun Okuda RWTH Aachen University
Yutaka Matsuo
Yutaka Matsuo University of Tokyo
Thomas P. Spaniol
Thomas P. Spaniol RWTH Aachen University
Hajime Yasuda
Hajime Yasuda Hiroshima University
Virginie Ratovelomanana-Vidal
Virginie Ratovelomanana-Vidal Chimie ParisTech
Yasushi Kai
Yasushi Kai Osaka University

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Best Scientists Citing Kazushi Mashima

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