D-Index & Metrics Best Publications

D-Index & Metrics D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Chemistry D-index 65 Citations 9,682 159 World Ranking 3651 National Ranking 241

Overview

What is he best known for?

The fields of study he is best known for:

  • Organic chemistry
  • Catalysis
  • Enzyme

Takashi Ohshima spends much of his time researching Catalysis, Organic chemistry, Enantioselective synthesis, Total synthesis and Michael reaction. His study in Catalysis is interdisciplinary in nature, drawing from both Combinatorial chemistry, Indium, Ligand and Medicinal chemistry. Takashi Ohshima has researched Indium in several fields, including Bifunctional and Substrate.

In his study, Phase-transfer catalyst, Mannich reaction, Glycine and Amino acid is strongly linked to Polymer chemistry, which falls under the umbrella field of Enantioselective synthesis. In general Total synthesis study, his work on Eleutherobin often relates to the realm of Biological profile, thereby connecting several areas of interest. He has included themes like Alkylation, Lewis acids and bases and Reactivity in his Michael reaction study.

His most cited work include:

  • Asymmetric Heck Reaction (233 citations)
  • Asymmetric alkynylation of aldehydes catalyzed by an In(III)/BINOL complex. (172 citations)
  • Asymmetric alkynylation of aldehydes catalyzed by an In(III)/BINOL complex. (172 citations)

What are the main themes of his work throughout his whole career to date?

Takashi Ohshima mostly deals with Catalysis, Organic chemistry, Combinatorial chemistry, Enantioselective synthesis and Medicinal chemistry. His Catalysis research is multidisciplinary, incorporating elements of Yield and Reactivity. His study in Organic chemistry concentrates on Total synthesis, Zinc, Chemoselectivity, Alkynylation and Amination.

His work deals with themes such as Epoxide, Stereochemistry and Carboxylic acid, which intersect with Enantioselective synthesis. His research integrates issues of Molecule and Stereoselectivity in his study of Stereochemistry. His Medicinal chemistry research incorporates elements of Substrate, Alkyl and Reaction mechanism.

He most often published in these fields:

  • Catalysis (72.43%)
  • Organic chemistry (52.57%)
  • Combinatorial chemistry (22.43%)

What were the highlights of his more recent work (between 2014-2021)?

  • Catalysis (72.43%)
  • Organic chemistry (52.57%)
  • Combinatorial chemistry (22.43%)

In recent papers he was focusing on the following fields of study:

His main research concerns Catalysis, Organic chemistry, Combinatorial chemistry, Transesterification and Enantioselective synthesis. His work carried out in the field of Catalysis brings together such families of science as Amino acid, Yield, Carboxylic acid, Ligand and Reactivity. His research is interdisciplinary, bridging the disciplines of Cleavage and Organic chemistry.

His Combinatorial chemistry research integrates issues from Reagent, Radical, Bond cleavage and Stoichiometry. His studies in Transesterification integrate themes in fields like Zinc, Alkoxide, Methyl acrylate and Chemoselectivity. His Enantioselective synthesis study combines topics in areas such as Rhodium and Trifluoromethyl.

Between 2014 and 2021, his most popular works were:

  • Direct Catalytic Chemoselective α-Amination of Acylpyrazoles: A Concise Route to Unnatural α-Amino Acid Derivatives (37 citations)
  • An Expeditious Route to trans-Configured Tetrahydrothiophenes Enabled by Fe(OTf)3 -Catalyzed [3+2] Cycloaddition of Donor-Acceptor Cyclopropanes with Thionoesters. (34 citations)
  • Mechanistic Studies and Expansion of the Substrate Scope of Direct Enantioselective Alkynylation of α-Ketiminoesters Catalyzed by Adaptable (Phebox)Rhodium(III) Complexes (34 citations)

In his most recent research, the most cited papers focused on:

  • Organic chemistry
  • Catalysis
  • Enzyme

Catalysis, Organic chemistry, Transesterification, Yield and Enantioselective synthesis are his primary areas of study. Takashi Ohshima combines subjects such as Combinatorial chemistry, Amino acid and Carboxylic acid with his study of Catalysis. His Amino acid research is multidisciplinary, incorporating perspectives in Total synthesis, Allylic rearrangement and Allyl compound.

Imidazole is closely connected to Zinc in his research, which is encompassed under the umbrella topic of Transesterification. The Yield study combines topics in areas such as Urea, Reagent, Isatin and Diethylenetriamine. His research in Reactivity intersects with topics in Ligand and Polymer chemistry.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

Asymmetric Heck Reaction

Masakatsu Shibasaki;Erasmus M. Vogl;Takashi Ohshima.
Advanced Synthesis & Catalysis (2004)

353 Citations

Asymmetric alkynylation of aldehydes catalyzed by an In(III)/BINOL complex.

Ryo Takita;Kenichiro Yakura;Takashi Ohshima;Takashi Ohshima;Masakatsu Shibasaki.
Journal of the American Chemical Society (2005)

261 Citations

Direct catalytic asymmetric aldol reaction: Synthesis of either syn-or anti-α,β-dihydroxy ketones

Naoki Yoshikawa;Naoya Kumagai;Shigeki Matsunaga;Guido Moll.
Journal of the American Chemical Society (2001)

234 Citations

Stable, Storable, and Reusable Asymmetric Catalyst: A Novel La-linked-BINOL Complex for the Catalytic Asymmetric Michael Reaction

Yun Sik Kim;Shigeki Matsunaga;Jagattaran Das;Akihiro Sekine.
Journal of the American Chemical Society (2000)

203 Citations

SOLID AND SOLUTION PHASE SYNTHESIS AND BIOLOGICAL EVALUATION OF COMBINATORIAL SARCODICTYIN LIBRARIES

K. C. Nicolaou;Nicolas Charles Winssinger;D. Vourloumis;T. Ohshima.
Journal of the American Chemical Society (1998)

196 Citations

Development of new asymmetric two-center catalysts in phase-transfer reactions

Tomoyuki Shibuguchi;Yuhei Fukuta;Yoko Akachi;Akihiro Sekine.
Tetrahedron Letters (2002)

192 Citations

Enzyme-like chemoselective acylation of alcohols in the presence of amines catalyzed by a tetranuclear zinc cluster.

Takashi Ohshima;Takanori Iwasaki;Yusuke Maegawa;and Asako Yoshiyama.
Journal of the American Chemical Society (2008)

180 Citations

Catalytic Asymmetric Epoxidation of Enones Using La−BINOL−Triphenylarsine Oxide Complex: Structural Determination of the Asymmetric Catalyst

Tetsuhiro Nemoto;Takashi Ohshima;Kentaro Yamaguchi;Masakatsu Shibasaki.
Journal of the American Chemical Society (2001)

176 Citations

Platinum-catalyzed direct amination of allylic alcohols under mild conditions: ligand and microwave effects, substrate scope, and mechanistic study.

Takashi Ohshima;Yoshiki Miyamoto;Junji Ipposhi;Yasuhito Nakahara.
Journal of the American Chemical Society (2009)

171 Citations

Enantio‐ and Diastereoselective Catalytic Mannich‐Type Reaction of a Glycine Schiff Base Using a Chiral Two‐Center Phase‐Transfer Catalyst

Akihiro Okada;Tomoyuki Shibuguchi;Takashi Ohshima;Hyuma Masu.
Angewandte Chemie (2005)

169 Citations

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