World's Best Scientists 2026 revealed!
Takahiko Akiyama

Takahiko Akiyama

D-Index & Metrics

Chemistry

D-Index
61
Citations
18936
World Ranking
9107
National Ranking
641

Takahiko Akiyama 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 Takahiko Akiyama 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: 288 publications — 60th percentile

60% of scientists in this discipline score the same or lower.

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

Takahiko Akiyama 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 Takahiko Akiyama 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: 61 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Overview

Takahiko Akiyama is affiliated with Gakushuin University in Japan. Their research primarily spans the fields of Chemistry and Materials Science, with a significant focus on Organic Chemistry and Materials Chemistry as subfields. Additional work includes Pharmaceutical Science, Inorganic Chemistry, and Spectroscopy.

Their research topics encompass a variety of areas within chemical sciences, including:

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

Recent publications by Akiyama include works published from 2021 through 2024, reflecting ongoing active research in organic synthesis and catalysis. Selected recent papers are:

  • Visible-Light-Driven C-S Bond Formation Based on Electron Donor-Acceptor Excitation and Hydrogen Atom Transfer Combined System, 2021, ACS Organic & Inorganic Au
  • Visible-Light-Driven Enantioselective Radical Addition to Imines Enabled by the Excitation of a Chiral Phosphoric Acid-Imine Complex, 2022, ACS Catalysis
  • Dual-Role Halogen-Bonding-Assisted EDA-SET/HAT Photoreaction System with Phenol Catalyst and Aryl Iodide: Visible-Light-Driven Carbon-Carbon Bond Formation, 2022, The Journal of Organic Chemistry
  • Chiral Phosphoric Acid-Palladium(II) Complex Catalyzed Asymmetric Desymmetrization of Biaryl Compounds by C(sp3)-H Activation, 2023, Journal of the American Chemical Society
  • Recent advances in catalytic asymmetric synthesis, 2024, Frontiers in Chemistry

Frequent coauthors collaborating with Akiyama include Tatsuhiro Uchikura, Masahiro Yamanaka, Yudai Makino, Hiroto Osakabe, and Riku Suzuki. The partnership with Tatsuhiro Uchikura appears particularly extensive.

Akiyama's work has been published repeatedly in various scientific venues, with several papers appearing in:

  • The Cambridge Structural Database
  • Organic Letters
  • The Journal of Organic Chemistry
  • Chemical Communications
  • ACS Organic & Inorganic Au

Best Publications

  • Stronger Brønsted acids

    Takahiko Akiyama

  • Enantioselective Mannich‐Type Reaction Catalyzed by a Chiral Brønsted Acid

    Takahiko Akiyama;Junji Itoh;Koji Yokota;Kohei Fuchibe

  • Recent Progress in Chiral Brønsted Acid Catalysis

    Takahiko Akiyama;Junji Itoh;Kohei Fuchibe

  • Stronger Brønsted Acids: Recent Progress.

    Takahiko Akiyama;Keiji Mori;Keiji Mori

  • Chiral Brønsted Acid-Catalyzed Inverse Electron-Demand Aza Diels−Alder Reaction

    Takahiko Akiyama;Hisashi Morita;Kohei Fuchibe

  • Chiral Brønsted Acid Catalyzed Enantioselective Hydrophosphonylation of Imines: Asymmetric Synthesis of α-Amino Phosphonates

    Takahiko Akiyama;Hisashi Morita;and Junji Itoh;Kohei Fuchibe

  • Chiral Phosphoric Acid Catalyzed Enantioselective Friedel–Crafts Alkylation of Indoles with Nitroalkenes: Cooperative Effect of 3 Å Molecular Sieves

    Junji Itoh;Kohei Fuchibe;Kohei Fuchibe;Takahiko Akiyama

  • Chiral Brønsted Acid Catalyzed Enantioselective Mannich-Type Reaction

    Masahiro Yamanaka;Junji Itoh;Kohei Fuchibe;Takahiko Akiyama

  • Selective Activation of Enantiotopic C(sp3)−Hydrogen by Means of Chiral Phosphoric Acid: Asymmetric Synthesis of Tetrahydroquinoline Derivatives

    Keiji Mori;Kensuke Ehara;Kazuki Kurihara;Takahiko Akiyama

  • Enantioselective synthesis of multisubstituted biaryl skeleton by chiral phosphoric acid catalyzed desymmetrization/kinetic resolution sequence.

    Keiji Mori;Yuki Ichikawa;Manato Kobayashi;Yukihiro Shibata

  • Chiral Brønsted Acid Catalyzed Enantioselective Aza-Diels–Alder Reaction of Brassard's Diene with Imines

    Junji Itoh;Kohei Fuchibe;Takahiko Akiyama

  • Low-Valent Niobium-Mediated Double Activation of C−F/C−H Bonds: Fluorene Synthesis from o-Arylated α,α,α-Trifluorotoluene Derivatives

    Kohei Fuchibe;Takahiko Akiyama

  • Enantiodivergent Atroposelective Synthesis of Chiral Biaryls by Asymmetric Transfer Hydrogenation: Chiral Phosphoric Acid Catalyzed Dynamic Kinetic Resolution.

    Keiji Mori;Keiji Mori;Tsubasa Itakura;Takahiko Akiyama

  • Benzothiazoline: Highly Efficient Reducing Agent for the Enantioselective Organocatalytic Transfer Hydrogenation of Ketimines

    Chen Zhu;Takahiko Akiyama

  • Chiral Phosphoric Acid Catalyzed Transfer Hydrogenation: Facile Synthetic Access to Highly Optically Active Trifluoromethylated Amines

    Alexander Henseler;Masanori Kato;Keiji Mori;Takahiko Akiyama

  • Benzothiazoline: Versatile Hydrogen Donor for Organocatalytic Transfer Hydrogenation

    Chen Zhu;Kodai Saito;Masahiro Yamanaka;Takahiko Akiyama

  • Expeditious Construction of a Carbobicyclic Skeleton via sp3-C−H Functionalization: Hydride Shift from an Aliphatic Tertiary Position in an Internal Redox Process

    Keiji Mori;Shosaku Sueoka;Takahiko Akiyama

  • Enantioselective aza-Darzens reaction catalyzed by a chiral phosphoric acid.

    Takahiko Akiyama;Tohru Suzuki;Keiji Mori

  • Enantioselective Mannich-type reaction catalyzed by a chiral bronsted acid derived from TADDOL

    Takahiko Akiyama;Youichi Saitoh;Hisashi Morita;Kohei Fuchibe

  • Enantioselective Aza-Diels-Alder Reaction Catalyzed by a Chiral Brønsted Acid: Effect of the Additive on the Enantioselectivity

    Takahiko Akiyama;Yukio Tamura;Junji Itoh;Hisashi Morita

Frequent Co-Authors

Chen Zhu
Chen Zhu Shanghai Jiao Tong University
Teruaki Mukaiyama
Teruaki Mukaiyama Kitasato University
Renji Okazaki
Renji Okazaki University of Tokyo
Kin-ya Akiba
Kin-ya Akiba Hiroshima University
Santos Fustero
Santos Fustero University of Valencia
Kentaro Yamaguchi
Kentaro Yamaguchi Tokushima Bunri University
Shigeru Sakamoto
Shigeru Sakamoto Chiba University
Shigeki Kato
Shigeki Kato Kyoto University
Fernando P. Cossío
Fernando P. Cossío University of the Basque Country
Yasuhiko Yoshida
Yasuhiko Yoshida Toyo University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students interested in chemistry, particularly its applications in criminal investigations and legal systems, related online degrees offer a flexible way to advance skills and knowledge. Pursuing a forensic psychology master's programs online can complement a chemistry background by deepening understanding of criminal behavior and investigative processes.

Exploring careers in forensics reveals diverse paths where chemistry expertise is crucial, such as toxicology, DNA analysis, and crime lab work. These roles often require specialized training that a chemistry degree can provide.

When considering the financial aspect, selecting cost-effective programs is essential. The criminal justice degree cost varies widely, so prospective students should evaluate tuition and fees alongside program reputation.

For those starting out or seeking a flexible entry point, the best online criminal justice associate degree programs offer foundational knowledge that can later be enhanced with specialized chemistry or forensic studies.

Best Scientists Citing Takahiko Akiyama

Trending Scientists