Hitoshi Hamashima

1.1k citations

15 papers · 871 · h-index 13

Impact in

Inorganic Chemistry top 5%
- Asymmetric Hydrogenation and Catalysis
Organic Chemistry top 2%
- Asymmetric Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
- Organometallic Complex Synthesis and Catalysis
- Catalytic C–H Functionalization Methods
- Synthesis and Catalytic Reactions

Papers in

Organic Chemistry 10
- Asymmetric Synthesis and Catalysis 8
- Synthetic Organic Chemistry Methods 4
- Organometallic Complex Synthesis and Catalysis 2
- Ferrocene Chemistry and Applications 2
Inorganic Chemistry 7
- Asymmetric Hydrogenation and Catalysis 6

Co-authors: Masaya Sawamura (10 shared papers)Yoshihiko Ito (10 shared papers)Tamio Hayashi (2 shared papers)Masanobu Sugawara (1 shared paper)Ryoichi Kuwano (1 shared paper)Yasuhiro Uozumi (1 shared paper)Akiko Yamazaki (1 shared paper)Takashi Emura (1 shared paper)
Journals: Journal of Medicinal Chemistry (3 papers)Tetrahedron Letters (3 papers)Bioorganic & Medicinal Chemistry Letters (2 papers)Tetrahedron (1 paper)The Journal of Organic Chemistry (1 paper)
Partner nations: Japan

In The Last Decade

Hitoshi Hamashima

15 papers receiving 841 citations

Peers

Countries citing papers authored by Hitoshi Hamashima

Since Specialization

Citations

This map shows the geographic impact of Hitoshi Hamashima's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hitoshi Hamashima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hitoshi Hamashima more than expected).

Fields of papers citing papers by Hitoshi Hamashima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hitoshi Hamashima. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hitoshi Hamashima. The network helps show where Hitoshi Hamashima may publish in the future.

Co-authors

The 24 scholars most cited alongside Hitoshi Hamashima, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Hitoshi Hamashima Line = papers co-authored together Hitoshi Hamashima links everyone, so they are left out of the graph.

All Works

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15 of 15 papers shown

#	Work
1	Catalytic asymmetric synthesis with trans-chelating chiral diphosphine ligand TRAP: rhodium-catalyzed asymmetric Michael addition of .alpha.-cyano carboxylates Journal of the American Chemical Society ·Masaya Sawamura, Hitoshi Hamashima, Yoshihiko Ito	1992	173
2	Synthesis and Structures of Trans-Chelating Chiral Diphosphine Ligands Bearing Aromatic P-Substituents, (S,S)-(R,R)- and (R,R)-(S,S)-2,2''-Bis[1-(diarylphosphino)ethyl]-1,1''-biferrocene (ArylTRAPs) and Their Transition Metal Complexes Organometallics ·Masaya Sawamura, Hitoshi Hamashima, Masanobu Sugawara, Ryoichi Kuwano, Yoshihiko Ito	1995	110
3	A trans-chelating chiral diphosphine ligand: Synthesis of 2,2″-bis[1-(diphenylphosphino)ethyl]-1,1″-biferrocene and its complexes with platinum(II) and palladium(II) Tetrahedron Asymmetry ·Masaya Sawamura, Hitoshi Hamashima, Yoshihiko Ito	1991	100
4	Silver(I)-catalyzed asymmetric aldol reaction of isocyanoacetate Tetrahedron Letters ·Tamio Hayashi, Yasuhiro Uozumi, Akiko Yamazaki, Masaya Sawamura, Hitoshi Hamashima, Yoshihiko Ito	1991	95
5	Asymmetric Michael reaction of α-cyano carboxylates catalyzed by a rhodium complex with trans-chelating chiral diphosphine PhTRAP Tetrahedron ·Masaya Sawamura, Hitoshi Hamashima, Yoshihiko Ito	1994	84
6	The asymmetric aldol reaction of tosylmethyl isocyanide and aldehydes catalyzed by chiral silver(I) complexes The Journal of Organic Chemistry ·Masaya Sawamura, Hitoshi Hamashima, Yoshihiko Ito	1990	77
7	Asymmetric Michael reaction of an α-cyano Weinreb amide catalyzed by a rhodium complex with trans-chelating chiral diphosphine PhTRAP Tetrahedron Letters ·Masaya Sawamura, Hitoshi Hamashima, Hajime Shinoto, Yoshihiko Ito	1995	56
8	Asymmetric aldol reaction of α-ketoesters with isocyanoacetate and isocyanoacetamide catalyzed by a chiral ferrocenylphosphine-gold(I) complex Tetrahedron Letters ·Yoshihiko Ito, Masaya Sawamura, Hitoshi Hamashima, Takashi Emura, Tamio Hayashi	1989	51
9	Discovery of a Novel Series of Biphenyl Benzoic Acid Derivatives as Potent and Selective Human β₃-Adrenergic Receptor Agonists with Good Oral Bioavailability. Part I Journal of Medicinal Chemistry ·Masashi Imanishi, Yasuyo Tomishima, Shinji Itou, Hitoshi Hamashima, Yutaka Nakajima, Kenichi Washizuka, Minoru Sakurai, Shigeo Matsui, Emiko Imamura, Koji Ueshima, Takao Yamamoto, Nobuhiro Yamamoto, Hirofumi Ishikawa, Keiko Nakano, Naoko Unami, Kaori Hamada, Yasuhiro Matsumura, Fujiko Takamura, Kouji Hattori	2008	34
10	Discovery of a Novel Series of Biphenyl Benzoic Acid Derivatives as Highly Potent and Selective Human β3 Adrenergic Receptor Agonists with Good Oral Bioavailability. Part II Journal of Medicinal Chemistry ·Masashi Imanishi, Shinji Itou, Kenichi Washizuka, Hitoshi Hamashima, Yutaka Nakajima, Takanobu Araki, Yasuyo Tomishima, Minoru Sakurai, Shigeo Matsui, Emiko Imamura, Koji Ueshima, Takao Yamamoto, Nobuhiro Yamamoto, Hirofumi Ishikawa, Keiko Nakano, Naoko Unami, Kaori Hamada, Yasuhiro Matsumura, Fujiko Takamura, Kouji Hattori	2008	25
11	Rhodium-Catalyzed Enantioselective Michael Addition of (1-Cyanoethyl)phosphonate: Synthesis of Optically Active Phosphonic Acid Derivatives with Phosphorus-Substituted Quaternary Asymmetric Carbon Center Bulletin of the Chemical Society of Japan ·Masaya Sawamura, Hitoshi Hamashima, Yoshihiko Ito	2000	24
12	Discovery of a Novel Series of Benzoic Acid Derivatives as Potent and Selective Human β₃Adrenergic Receptor Agonists with Good Oral Bioavailability. 3. Phenylethanolaminotetraline (PEAT) Skeleton Containing Biphenyl or Biphenyl Ether Moiety Journal of Medicinal Chemistry ·Masashi Imanishi, Yutaka Nakajima, Yasuyo Tomishima, Hitoshi Hamashima, Kenichi Washizuka, Minoru Sakurai, Shigeo Matsui, Emiko Imamura, Koji Ueshima, Takao Yamamoto, Nobuhiro Yamamoto, Hirofumi Ishikawa, Keiko Nakano, Naoko Unami, Kaori Hamada, Yasuhiro Matsumura, Fujiko Takamura, Kouji Hattori	2008	19
13	Discovery of a novel, potent and selective human β3-adrenergic receptor agonist Bioorganic & Medicinal Chemistry Letters ·Yutaka Nakajima, Hitoshi Hamashima, Kenichi Washizuka, Yasuyo Tomishima, Hiroaki Ohtake, Emiko Imamura, Toshiko Miura, Hiroshi Kayakiri, Masayuki Kato	2004	13
14	Discovery of novel series of benzoic acid derivatives containing biphenyl ether moiety as potent and selective human β3-adrenergic receptor agonists: Part IV Bioorganic & Medicinal Chemistry Letters ·Yutaka Nakajima, Masashi Imanishi, Shinji Itou, Hitoshi Hamashima, Yasuyo Tomishima, Kenichi Washizuka, Minoru Sakurai, Shigeo Matsui, Emiko Imamura, Koji Ueshima, Takao Yamamoto, Nobuhiro Yamamoto, Hirofumi Ishikawa, Keiko Nakano, Naoko Unami, Kaori Hamada, Kouji Hattori	2008	6
15	ChemInform Abstract: Catalytic Asymmetric Synthesis with Trans‐Chelating Chiral Diphosphine Ligand TRAP: Rhodium‐Catalyzed Asymmetric Michael Addition of α‐ Cyano Carboxylates. ChemInform ·Masaya Sawamura, Hitoshi Hamashima, Yoshihiko Ito	1993	4

About Hitoshi Hamashima

Hitoshi Hamashima is a scholar working on Organic Chemistry, Inorganic Chemistry, Molecular Biology, Cellular and Molecular Neuroscience and Animal Science and Zoology, having authored 15 papers that have together received 871 indexed citations. Recurring topics across this work include Asymmetric Synthesis and Catalysis (8 papers), Asymmetric Hydrogenation and Catalysis (6 papers), Synthetic Organic Chemistry Methods (4 papers), Receptor Mechanisms and Signaling (3 papers), Organometallic Complex Synthesis and Catalysis (2 papers), Pharmacological Effects and Assays (2 papers), Ferrocene Chemistry and Applications (2 papers) and Chemical Synthesis and Analysis (2 papers). The work is most often cited by research in Inorganic Chemistry (433 citations), Organic Chemistry (740 citations), Process Chemistry and Technology (19 citations), Pharmaceutical Science (29 citations) and Molecular Biology (206 citations). Hitoshi Hamashima has collaborated with scholars based in Japan. Frequent co-authors include Masaya Sawamura, Yoshihiko Ito, Tamio Hayashi, Masanobu Sugawara, Ryoichi Kuwano, Yasuhiro Uozumi, Akiko Yamazaki, Takashi Emura, Kenichi Washizuka and Yutaka Nakajima. Their work appears in journals such as Journal of Medicinal Chemistry, Tetrahedron Letters, Bioorganic & Medicinal Chemistry Letters, Tetrahedron and The Journal of Organic Chemistry.

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