World's Best Scientists 2026 revealed!
Yoshitaka Hamashima

Yoshitaka Hamashima

D-Index & Metrics

Chemistry

D-Index
49
Citations
9645
World Ranking
14730
National Ranking
1153

Yoshitaka Hamashima 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 Yoshitaka Hamashima 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: 162 publications — 18th percentile

18% of scientists in this discipline score the same or lower.

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

Yoshitaka Hamashima 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 Yoshitaka Hamashima 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: 49 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Overview

Yoshitaka Hamashima is affiliated with the University of Shizuoka in Japan. Their research primarily focuses on fields related to chemistry and materials science, with a strong emphasis on organic chemistry, materials chemistry, pharmaceutical science, inorganic chemistry, and molecular biology.

Their work covers a range of main topics within these fields, including:

  • Fluorine in Organic Chemistry
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Catalytic C-H Functionalization Methods
  • Radical Photochemical Reactions
  • Asymmetric Synthesis and Catalysis
  • Sulfur-Based Synthesis Techniques

Yoshitaka Hamashima has contributed articles to multiple publication venues, with a notable number of papers appearing in:

  • The Cambridge Structural Database
  • Organic Letters
  • Journal of the American Chemical Society
  • The Journal of Organic Chemistry
  • Biochemical and Biophysical Research Communications

Their frequent co-authors include:

  • Kenji Yamashita
  • Hiromichi Egami
  • Tomoki Niwa
  • Taiki Rouno
  • Kousuke Nishibashi

Among recent publications, the following papers illustrate areas of their ongoing research:

  • Asymmetric Dearomative Fluorination of 2-Naphthols with a Dicarboxylate Phase-Transfer Catalyst, 2020, Angewandte Chemie International Edition
  • Dual-Role Catalysis by Thiobenzoic Acid in Cα-H Arylation under Photoirradiation, 2020, ACS Catalysis
  • Asymmetric Dearomatizing Fluoroamidation of Indole Derivatives with Dianionic Phase-Transfer Catalyst, 2020, Organic Letters
  • 18F-Labeled dihydromethidine: positron emission tomography radiotracer for imaging of reactive oxygen species in intact brain, 2020, Organic & Biomolecular Chemistry
  • Structure Dependence in Asymmetric Deprotonative Fluorination and Fluorocyclization Reactions of Allylamine Derivatives with Linked Binaphthyl Dicarboxylate Phase-Transfer Catalyst, 2021, Journal of the American Chemical Society

Best Publications

  • Catalytic enantioselective fluorination of oxindoles.

    Yoshitaka Hamashima;Toshiaki Suzuki;Hisashi Takano;and Yuta Shimura

  • An efficient enantioselective fluorination of various β-ketoesters catalyzed by chiral palladium complexes

    Yoshitaka Hamashima;Kenji Yagi;Hisashi Takano;László Tamás

  • A New Bifunctional Asymmetric Catalysis: An Efficient Catalytic Asymmetric Cyanosilylation of Aldehydes

    Yoshitaka Hamashima;Daisuke Sawada;and Motomu Kanai;Masakatsu Shibasaki

  • Recent Advances in Catalytic Enantioselective Fluorination Reactions

    Sylvain Lectard;Yoshitaka Hamashima;Mikiko Sodeoka

  • Direct Generation of Nucleophilic Chiral Palladium Enolate from 1,3-Dicarbonyl Compounds: Catalytic Enantioselective Michael Reaction with Enones

    Yoshitaka Hamashima;Daido Hotta;Mikiko Sodeoka

  • Catalytic Enantioselective Cyanosilylation of Ketones

    Yoshitaka Hamashima;and Motomu Kanai;Masakatsu Shibasaki

  • Switching Enantiofacial Selectivities Using One Chiral Source: Catalytic Enantioselective Synthesis of the Key Intermediate for (20S)-Camptothecin Family by (S)-Selective Cyanosilylation of Ketones

    Kazuo Yabu;Shuji Masumoto;Shingo Yamasaki;Yoshitaka Hamashima

  • Copper‐Catalyzed Trifluoromethylation of Allylsilanes

    Ryo Shimizu;Hiromichi Egami;Yoshitaka Hamashima;Mikiko Sodeoka

  • A Catalytic Asymmetric Strecker‐Type Reaction: Interesting Reactivity Difference between TMSCN and HCN

    Masahiro Takamura;Yoshitaka Hamashima;Hiroyuki Usuda;Motomu Kanai

  • A Catalytic Asymmetric Strecker-Type Reaction: Interesting Reactivity Difference between TMSCN and HCN This work was supported by CREST and RFTF. We thank Professor Kobayashi and Dr. Ishitani at the University of Tokyo for kindly showing us their recent results and the procedure for the preparation of HCN. We also thank Professor Hoveyda in Boston College for kindly showing us his recent results.

    Takamura M;Hamashima Y;Usuda H;Kanai M

  • Total Synthesis of (+)-Chaetocin and its Analogues: Their Histone Methyltransferase G9a Inhibitory Activity

    Eriko Iwasa;Yoshitaka Hamashima;Shinya Fujishiro;Eisuke Higuchi

  • Direct C2-trifluoromethylation of indole derivatives catalyzed by copper acetate

    Ryo Shimizu;Hiromichi Egami;Tatsuya Nagi;Jungha Chae

  • Catalytic Asymmetric Addition of β‐Ketoesters to Various Imines by Using Chiral Palladium Complexes

    Yoshitaka Hamashima;Yoshitaka Hamashima;Naoki Sasamoto;Naoki Sasamoto;Daido Hotta;Daido Hotta;Hidenori Somei;Hidenori Somei

  • Pd(II)-catalyzed asymmetric addition of malonates to dihydroisoquinolines.

    Naoki Sasamoto;Christian Dubs;Yoshitaka Hamashima;Mikiko Sodeoka

  • A new entry to Pd-H chemistry: catalytic asymmetric conjugate reduction of enones with EtOH and a highly enantioselective synthesis of warfarin.

    Yasunori Tsuchiya;Yoshitaka Hamashima;Mikiko Sodeoka

  • Immobilization and reuse of Pd complexes in ionic liquid: efficient catalytic asymmetric fluorination and Michael reactions with beta-ketoesters.

    Yoshitaka Hamashima;Hisashi Takano;Daido Hotta;Mikiko Sodeoka

  • Catalytic enantioselective cyanosilylation of ketones: improvement of enantioselectivity and catalyst turn-over by ligand tuning

    Yoshitaka Hamashima;Motomu Kanai;Masakatsu Shibasaki

  • Amine-Salt-Controlled, Catalytic Asymmetric Conjugate Addition of Various Amines and Asymmetric Protonation

    Yoshitaka Hamashima;Hidenori Somei;Yuta Shimura;Toshihiro Tamura

  • Highly enantioselective cyanosilylation of aldehydes catalyzed by a Lewis acid–Lewis base bifunctional catalyst

    Yoshitaka Hamashima;Daisuke Sawada;Hiroyuki Nogami;Motomu Kanai

  • Diastereo- and Enantioselective Conjugate Addition of α-Ketoesters to Nitroalkenes Catalyzed by a Chiral Ni(OAc)2 Complex under Mild Conditions

    Ayako Nakamura;Sylvain Lectard;Daisuke Hashizume;Yoshitaka Hamashima

  • Catalytic Desymmetrization of Cyclohexadienes by Asymmetric Bromolactonization

    Kazutada Ikeuchi;Shunsuke Ido;Satoshi Yoshimura;Tomohiro Asakawa

  • Catalytic Enantioselective Fluorination of Oxindoles

    Y. Hamashima;T. Suzuki;H. Takano;Y. Shimura

Frequent Co-Authors

Mikiko Sodeoka
Mikiko Sodeoka Sagami Central Chemical Research Institute
Masakatsu Shibasaki
Masakatsu Shibasaki University of Tokyo
Motomu Kanai
Motomu Kanai University of Tokyo
Naoto Oku
Naoto Oku University of Shizuoka
Shuji Akai
Shuji Akai Osaka University
Tohru Fukuyama
Tohru Fukuyama Nagoya University
Minoru Yoshida
Minoru Yoshida University of Tokyo
Shingo Nishiyama
Shingo Nishiyama Hamamatsu Photonics (Japan)
Hideo Tsukada
Hideo Tsukada Hamamatsu Photonics (Japan)

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