World's Best Scientists 2026 revealed!
Yasumasa Hamada

Yasumasa Hamada

D-Index & Metrics

Chemistry

D-Index
55
Citations
9096
World Ranking
12326
National Ranking
926

Yasumasa Hamada 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 Yasumasa Hamada 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: 331 publications — 69th percentile

69% of scientists in this discipline score the same or lower.

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

Yasumasa Hamada 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 Yasumasa Hamada 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: 55 D-Index — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Overview

Yasumasa Hamada is affiliated with Chiba University in Japan, specializing in the field of chemistry with a focus on organic chemistry. Their research predominantly addresses various aspects of synthetic organic chemistry methods, catalytic C-H functionalization methods, and asymmetric synthesis and catalysis.

The scientist's recent publication record includes work on catalytic processes. One specific paper is titled Computational studies of the mechanism of Pd-Catalyzed Intramolecular Friedel-Crafts allylic alkylation of phenols, published in 2020 in the journal Tetrahedron. This paper contributes to the understanding of palladium-catalyzed transformations within organic synthesis.

Yasumasa Hamada collaborates frequently with several researchers in their field, including:

  • Takahito Kuribara
  • Koki Matsumoto
  • Sho Nagasawa
  • Yuta Suzuki
  • Masaya Nakajima

The primary publication venue associated with the scientist is:

  • Tetrahedron

The main areas of study involve:

  • Chemistry

Subfields of expertise include:

  • Organic Chemistry

The topics most frequently addressed in their research are:

  • Synthetic Organic Chemistry Methods
  • Catalytic C-H Functionalization Methods
  • Asymmetric Synthesis and Catalysis

Best Publications

  • Novel method for synthesizing spiro[4.5]cyclohexadienones through a Pd-catalyzed intramolecular ipso-Friedel-Crafts allylic alkylation of phenols.

    Tetsuhiro Nemoto;Yuta Ishige;Mariko Yoshida;Yuta Kohno

  • New methods and reagents in organic synthesis. 67. A general synthesis of derivatives of optically pure 2-(1-aminoalkyl)thiazole-4-carboxylic acids

    Yasumasa Hamada;Makoto Shibata;Tsuneyuki Sugiura;Shinji Kato

  • Recent Progress of the Synthetic Studies of Biologically Active Marine Cyclic Peptides and Depsipeptides

    Unknown

  • Palladium-catalyzed intramolecular ipso-Friedel-Crafts alkylation of phenols and indoles: rearomatization-assisted oxidative addition.

    Tetsuhiro Nemoto;Zengduo Zhao;Takuya Yokosaka;Yuta Suzuki

  • Stereoselective synthesis of anti-beta-hydroxy-alpha-amino acids through dynamic kinetic resolution.

    Kazuishi Makino;Takayuki Goto;Yasuhiro Hiroki;Yasumasa Hamada

  • P-Chirogenic Diaminophosphine Oxide: A New Class of Chiral Phosphorus Ligands for Asymmetric Catalysis

    Tetsuhiro Nemoto;Takayoshi Matsumoto;Takamasa Masuda;Tsukasa Hitomi

  • Catalytic asymmetric hydrogenation of α-amino-β-keto ester hydrochlorides using homogeneous chiral nickel-bisphosphine complexes through DKR

    Yasumasa Hamada;Yu Koseki;Takefumi Fujii;Tsukuru Maeda

  • New methods and reagents in organic synthesis. 51. A synthesis of ascidiacyclamide, a cytotoxic cyclic peptide from ascidian — determination of its absolute configuration

    Yasumasa Hamada;Shinji Kato;Takayuki Shioiri

  • Diethyl phosphorocyanidated (DEPC). A novel reagent for the classical Strecker's α-amino nitrile synthesis☆

    Shinya Harusawa;Yasumasa Hamada;Takayuki Shioiri

  • Efficient total synthesis of didemnins A and B

    Yasumasa Hamada;Yutaka Kondo;Makoto Shibata;Takayuki Shioiri

  • Efficient total synthesis of AI-77-B, A gastroprotective substance from bacillus pumilus AI-77

    Yasumasa Hamada;Osamu Hara;Akiyoshi Kawai;Yasushi Kohno

  • Homogeneous Chiral Nickel‐Catalyzed Asymmetric Hydrogenation of Substituted Aromatic α‐Aminoketone Hydrochlorides through Dynamic Kinetic Resolution

    Takuya Hibino;Kazuishi Makino;Takaya Sugiyama;Yasumasa Hamada

  • Enantioselective construction of all-carbon quaternary spirocenters through a Pd-catalyzed asymmetric intramolecular ipso-Friedel–Crafts allylic alkylation of phenols

    Mariko Yoshida;Tetsuhiro Nemoto;Zengduo Zhao;Yuta Ishige

  • An Extensive Survey by the Use of High Performance Liquid Chromatography on Racemization during the Coupling of Benzyloxycarbonyl-L-phenylalanyl-L-valine with L-Proline tert-Butyl Ester

    Shoji Takuma;Yasumasa Hamada;Takayuki Shioiri

  • Gold-Catalyzed Carbocyclization of Phenols with a Terminal Alkyne via an Intramolecular ipso-Friedel–Crafts Alkenylation

    Tetsuhiro Nemoto;Nobuaki Matsuo;Yasumasa Hamada

  • Efficient synthesis of 3-substituted 2,3-dihydroquinolin-4-ones using a one-pot sequential multi-catalytic process : Pd-catalyzed allylic amination-thiazolium salt-catalyzed Stetter reaction cascade

    Tetsuhiro Nemoto;Tomoaki Fukuda;Yasumasa Hamada

  • A NEW SYNTHETIC ROUTE TO PROSTAGLANDINS

    E.J Corey;Koichi Niimura;Yoshitaka Konishi;Shinsuke Hashimoto

  • Stereoselective total synthesis of AI-77-B, a gastroprotective substance from Bacillus pumilus AI-77

    Yasumasa Hamada;Akiyoshi Kawai;Yasushi Kohno;Osamu Hara

  • Pd-catalyzed asymmetric allylic amination of Morita-Baylis-Hillman adduct derivatives using chiral diaminophosphine oxides: DIAPHOXs.

    Tetsuhiro Nemoto;Takashi Fukuyama;Eri Yamamoto;Shinji Tamura

  • Dynamic Kinetic Resolution Catalyzed by Ir Axially Chiral Phosphine Catalyst: Asymmetric Synthesis of anti Aromatic β-Hydroxy-α-amino Acid Esters

    Unknown

  • Stereoselective synthesis of the hydroxy amino acid moiety of Al-77-B, a gastroprotective substance from Bacillus pumilus Al-77

    Akiyoshi Kawai;Osamu Hara;Yasumasa Hamada;Takayuki Shioiri

  • Solution and solid-state conformations of ascidiacyclamide, a cytotoxic cyclic peptide from ascidian

    Toshimasa Ishida;Masayuki Tanaka;Michiko Nabae;Masatoshi Inoue

Frequent Co-Authors

Takayuki Shioiri
Takayuki Shioiri Meijo University
Jingen Deng
Jingen Deng Sichuan University
Harald Gröger
Harald Gröger Bielefeld University
Mikiko Sodeoka
Mikiko Sodeoka Sagami Central Chemical Research Institute

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