World's Best Scientists 2026 revealed!
Tatsuo Ishiyama

Tatsuo Ishiyama

D-Index & Metrics

Chemistry

D-Index
50
Citations
15977
World Ranking
14216
National Ranking
1102

Tatsuo Ishiyama 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 Tatsuo Ishiyama 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: 97 publications — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Tatsuo Ishiyama 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 Tatsuo Ishiyama 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: 50 D-Index — 21st percentile

21% of scientists in this discipline score the same or lower.

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

Overview

Tatsuo Ishiyama is affiliated with Hokkaido University in Japan. Their research primarily focuses on chemistry and materials science, with sustained contributions particularly in organic chemistry and materials chemistry.

The scientist has contributed significantly to the following main fields of study:

  • Chemistry
  • Materials Science

Within these fields, their work spans several subfields, including:

  • Organic Chemistry
  • Materials Chemistry
  • Inorganic Chemistry
  • Radiology, Nuclear Medicine and Imaging

The main research topics addressed by Tatsuo Ishiyama involve:

  • Organoboron and organosilicon chemistry
  • Catalytic Cross-Coupling Reactions
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Synthesis and characterization of novel inorganic/organometallic compounds
  • Boron Compounds in Chemistry
  • Catalytic C-H Functionalization Methods

The scientist has published extensively in a number of scientific journals and databases. Frequent venues include:

  • The Cambridge Structural Database
  • Journal of the American Chemical Society
  • Beilstein Journal of Organic Chemistry
  • Chemistry Letters

Recent publications by Tatsuo Ishiyama and collaborators include:

  • General Synthesis of Trialkyl- and Dialkylarylsilylboranes: Versatile Silicon Nucleophiles in Organic Synthesis (2020), Journal of the American Chemical Society
  • Palladium-catalyzed solid-state borylation of aryl halides using mechanochemistry (2022), Beilstein Journal of Organic Chemistry
  • An Improved Catalytic System for Solid-state Iridium(I)-catalyzed C-H Borylation Using Mechanochemistry (2023), Chemistry Letters
  • Correction to "General Synthesis of Trialkyl- and Dialkylarylsilylboranes: Versatile Silicon Nucleophiles in Organic Synthesis" (2021), Journal of the American Chemical Society
  • CCDC 1987435: Experimental Crystal Structure Determination (2020), The Cambridge Structural Database

Tatsuo Ishiyama collaborates frequently with other researchers, often co-authoring papers with:

  • Hajime Ito
  • Ryosuke Shishido
  • Koji Kubota
  • Minami Uesugi
  • Rikuro Takahashi

Best Publications

  • Palladium(0)-Catalyzed Cross-Coupling Reaction of Alkoxydiboron with Haloarenes: A Direct Procedure for Arylboronic Esters

    Tatsuo Ishiyama;Miki Murata;Norio Miyaura

  • Mild iridium-catalyzed borylation of arenes. High turnover numbers, room temperature reactions, and isolation of a potential intermediate.

    Tatsuo Ishiyama;Jun Takagi;Kousaku Ishida;Norio Miyaura

  • Palladium-catalyzed inter- and intramolecular cross-coupling reactions of B-alkyl-9-borabicyclo[3.3.1]nonane derivatives with 1-halo-1-alkenes or haloarenes. Syntheses of functionalized alkenes, arenes, and cycloalkenes via a hydroboration-coupling sequence

    Norio Miyaura;Tatsuo Ishiyama;Hirotomo Sasaki;Masako Ishikawa

  • A Stoichiometric Aromatic CbH Borylation Catalyzed by Iridium(I)/2,2â²-Bipyridine Complexes at Room Temperature

    Tatsuo Ishiyama;Jun Takagi;John F. Hartwig;Norio Miyaura

  • Mechanism of the mild functionalization of arenes by diboron reagents catalyzed by iridium complexes. Intermediacy and chemistry of bipyridine-ligated iridium trisboryl complexes.

    Timothy M Boller;Jaclyn M Murphy;Marko Hapke;Tatsuo Ishiyama

  • Platinum(0)-catalyzed diboration of alkynes

    Tatsuo Ishiyama;Nobuo Matsuda;Norio Miyaura;Akira Suzuki

  • Metal-catalyzed reactions of diborons for synthesis of organoboron compounds

    Tatsuo Ishiyama;Norio Miyaura

  • Synthesis of arylboronates via the palladium(0)-catalyzed cross-coupling reaction of tetra(alkoxo)diborons with aryl triflates

    Tatsuo Ishiyama;Yoshiya Itoh;Takahiro Kitano;Norio Miyaura

  • Iridium-catalyzed C–H coupling reaction of heteroaromatic compounds with bis(pinacolato)diboron: regioselective synthesis of heteroarylboronates

    Jun Takagi;Kazuaki Sato;John F Hartwig;Tatsuo Ishiyama

  • A borylcopper species generated from bis(pinacolato)diboron and its additions to α,β-unsaturated carbonyl compounds and terminal alkynes

    Kou Takahashi;Tatsuo Ishiyama;Norio Miyaura

  • Platinum(0)-Catalyzed Diboration of Alkynes with Tetrakis(alkoxo)diborons: An Efficient and Convenient Approach to cis-Bis(boryl)alkenes

    Tatsuo Ishiyama;Nobuo Matsuda;Miki Murata;Fumiyuki Ozawa

  • Chemistry of Group 13 element-transition metal linkage — the platinum- and palladium-catalyzed reactions of (alkoxo)diborons

    Tatsuo Ishiyama;Norio Miyaura

  • Transition metal-catalyzed borylation of alkanes and arenes via CH activation

    Tatsuo Ishiyama;Norio Miyaura

  • Synthesis of pinacol arylboronates via cross-coupling reaction of bis(pinacolato)diboron with chloroarenes catalyzed by palladium(0)–tricyclohexylphosphine complexes

    Tatsuo Ishiyama;Kousaku Ishida;Norio Miyaura

  • Palladium-catalyzed cross-coupling reaction of bis(pinacolato)diboron with 1-alkenyl halides or triflates: Convenient synthesis of unsymmetrical 1,3-dienes via the borylation-coupling sequence

    Jun Takagi;Kou Takahashi;Tatsuo Ishiyama;Norio Miyaura

  • Addition and Coupling Reactions of Bis(pinacolato)diboron Mediated by CuCl in the Presence of Potassium Acetate

    Kou Takahashi;Tatsuo Ishiyama;Norio Miyaura

  • Palladium-Catalyzed Carbonylative Cross-Coupling Reaction of Arylboronic Acids with Aryl Electrophiles: Synthesis of Biaryl Ketones

    Tatsuo Ishiyama;Hiroe Kizaki;Takahiro Hayashi;and Akira Suzuki

  • Room temperature borylation of arenes and heteroarenes using stoichiometric amounts of pinacolborane catalyzed by iridium complexes in an inert solvent

    Tatsuo Ishiyama;Yusuke Nobuta;John F. Hartwig;Norio Miyaura

  • Palladium-Catalyzed Alkyl-Alkyl Cross-Coupling Reaction of 9-Alkyl-9-BBN Derivatives with Iodoalkanes Possessing β-Hydrogens.

    Tatsuo Ishiyama;Shigeru Abe;Norio Miyaura;Akira Suzuki

  • Iridium-Catalyzed Direct Borylation of Five-Membered Heteroarenes by Bis(pinacolato)diboron: Regioselective, Stoichiometric, and Room Temperature Reactions

    Tatsuo Ishiyama;Jun Takagi;Yuhei Yonekawa;John F. Hartwig

Frequent Co-Authors

Norio Miyaura
Norio Miyaura Hokkaido University
Akira Suzuki
Akira Suzuki Hokkaido University
Hajime Ito
Hajime Ito Hokkaido University
John F. Hartwig
John F. Hartwig University of California, Berkeley
Fumiyuki Ozawa
Fumiyuki Ozawa Kyoto University
David W. Boykin
David W. Boykin Georgia State University
James P. Morken
James P. Morken Boston College
Zhen Yang
Zhen Yang Peking University
Jianliang Xiao
Jianliang Xiao University of Liverpool
J. Derek Woollins
J. Derek Woollins University of St Andrews

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