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Yoshitaka Hamashima

Yoshitaka Hamashima

D-Index & Metrics

Chemistry

D-Index
49
Citations
9645
World Ranking
14732
National Ranking
1153

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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