Tadamasa Date

1.8k total citations
72 papers, 1.4k citations indexed

About

Tadamasa Date is a scholar working on Organic Chemistry, Molecular Biology and Spectroscopy. According to data from OpenAlex, Tadamasa Date has authored 72 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 49 papers in Organic Chemistry, 17 papers in Molecular Biology and 13 papers in Spectroscopy. Recurrent topics in Tadamasa Date's work include Chemical Synthesis and Analysis (11 papers), Synthetic Organic Chemistry Methods (10 papers) and Asymmetric Synthesis and Catalysis (9 papers). Tadamasa Date is often cited by papers focused on Chemical Synthesis and Analysis (11 papers), Synthetic Organic Chemistry Methods (10 papers) and Asymmetric Synthesis and Catalysis (9 papers). Tadamasa Date collaborates with scholars based in Japan and United States. Tadamasa Date's co-authors include Kimio Okamura, Masakatsu Shibasaki, Hiroaki Sasai, K. AOE, Takayoshi Arai, Miwako Mori, Kenji Koga, Takeyuki Suzuki, Koichi Tanaka and Noriaki Uesaka and has published in prestigious journals such as Journal of the American Chemical Society, Chemical Communications and Journal of Medicinal Chemistry.

In The Last Decade

Tadamasa Date

72 papers receiving 1.3k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Tadamasa Date Japan 20 1.2k 346 344 149 114 72 1.4k
Kimio Okamura Japan 18 1.0k 0.9× 267 0.8× 332 1.0× 171 1.1× 99 0.9× 52 1.2k
Paul F. Hudrlik United States 23 1.9k 1.6× 341 1.0× 321 0.9× 141 0.9× 159 1.4× 77 2.1k
Ernest W. Colvin United Kingdom 21 1.5k 1.2× 357 1.0× 256 0.7× 112 0.8× 127 1.1× 39 1.7k
Lucette Duhamel France 22 1.4k 1.2× 336 1.0× 301 0.9× 176 1.2× 76 0.7× 103 1.5k
B. G. B. GUPTA United States 18 1.0k 0.9× 315 0.9× 211 0.6× 119 0.8× 109 1.0× 36 1.2k
Stephen A. Godleski United States 17 1.0k 0.9× 303 0.9× 167 0.5× 243 1.6× 95 0.8× 30 1.3k
Makoto Sato Japan 17 1.3k 1.1× 276 0.8× 197 0.6× 77 0.5× 52 0.5× 64 1.5k
Lanny S. Liebeskind United States 28 2.5k 2.1× 360 1.0× 387 1.1× 76 0.5× 113 1.0× 46 2.7k
Edward G. Corley United States 20 1.4k 1.2× 423 1.2× 312 0.9× 106 0.7× 48 0.4× 39 1.6k
J. SEYDEN‐PENNE France 22 1.6k 1.4× 355 1.0× 369 1.1× 218 1.5× 80 0.7× 90 1.8k

Countries citing papers authored by Tadamasa Date

Since Specialization
Citations

This map shows the geographic impact of Tadamasa Date'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 Tadamasa Date with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Tadamasa Date more than expected).

Fields of papers citing papers by Tadamasa Date

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Tadamasa Date. 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 Tadamasa Date. The network helps show where Tadamasa Date may publish in the future.

Co-authorship network of co-authors of Tadamasa Date

This figure shows the co-authorship network connecting the top 25 collaborators of Tadamasa Date. A scholar is included among the top collaborators of Tadamasa Date based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Tadamasa Date. Tadamasa Date is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Asai, Yasuyuki, MAKI NISHIO, Kimio Okamura, et al.. (1997). TMC-2A, -2B and -2C, New Dipeptidyl Peptidase IV Inhibitors Produced by Aspergillus oryzae A374. II. Isolation and Structure Determination.. The Journal of Antibiotics. 50(8). 653–658. 14 indexed citations
3.
INOUE, H., Tomiki Hashiyama, Kaoru Takahashi, et al.. (1997). Synthesis and Biological Evaluation of Alkyl, Alkoxy, Alkylthio, or Amino-Substituted 2,3-Dihydro-1,5-benzothiazepin-4(5H)-ones.. Chemical and Pharmaceutical Bulletin. 45(6). 1008–1026. 18 indexed citations
4.
Arai, Takayoshi, Hiroaki Sasai, K. AOE, et al.. (1996). A New Multifunctional Heterobimetallic Asymmetric Catalyst for Michael Additions and Tandem Michael–Aldol Reactions. Angewandte Chemie International Edition in English. 35(1). 104–106. 198 indexed citations
5.
Arai, Takayoshi, Hiroaki Sasai, K. AOE, et al.. (1996). Ein neuartiger multifunktioneller asymmetrischer Hetero‐Dimetall‐Katalysator für Michael‐Additionen und Tandem‐Michael‐Aldol‐Reaktionen. Angewandte Chemie. 108(1). 103–105. 44 indexed citations
6.
7.
Sakamoto, Masanori, Yoko Suzuki, Mayumi Nagano, et al.. (1995). Diels–Alder reaction of benzylidene(cyano)methyl-1,3-benzoxa/thiazoles as stable 1-azabuta-1,3-dienes. Journal of the Chemical Society Perkin Transactions 1. 1759–1770. 15 indexed citations
8.
Okamura, Kimio, et al.. (1995). Investigation of the Crystal Structure for the Direct Chiral Separation Model in High-Performance Liquid Chromatography. Analytical Sciences. 11(4). 563–568. 1 indexed citations
9.
Kubota, Hitoshi, Akira Kubo, Masami Takahashi, et al.. (1995). Stereospecific Amination by Dynamic Kinetic Resolution Utilizing 2-Oxoimidazolidine-4-carboxylate as a Novel Chiral Auxiliary. The Journal of Organic Chemistry. 60(21). 6776–6784. 47 indexed citations
10.
Nakagawa, Masako, Yasuhiro Torisawa, Kiyoshi Tanabe, et al.. (1993). Dihydropyridinone approach to manzamines: An expedient construction of the tetracyclic core of manzamine A. Tetrahedron Letters. 34(28). 4543–4546. 36 indexed citations
11.
Manabe, Kei, Kimio Okamura, Tadamasa Date, & Kenji Koga. (1993). Correction. Effects of Ion-Pair Structure on Relative Basicity in Chloroform: Acid-Base Equilibria Controlled by Steric Repulsion, π-Stacking Interactions, and Hydrogen Bonding within an Ion Pair. Journal of the American Chemical Society. 115(20). 9355–9355. 1 indexed citations
12.
Miyata, Okiko, Tetsuro Shinada, Ichiya Ninomiya, et al.. (1992). A new steroselective route to .GAMMA.-butyrolactones: asymmetric syntheses of (+)-trans-whisky and (+)-trans-cognac lactones.. Chemical and Pharmaceutical Bulletin. 40(9). 2579–2581. 23 indexed citations
13.
Tanaka, Takashi, H. INOUE, Tadamasa Date, et al.. (1992). Synthesis of the Optically Active trans-Isomers of Diltiazem and Their Cardiovascular Effects and Ca-Antagonistic Activity.. Chemical and Pharmaceutical Bulletin. 40(6). 1476–1480. 9 indexed citations
14.
INOUE, H., Tomiki Hashiyama, Kaoru Takahashi, et al.. (1991). Synthesis of halogen-substituted 1,5-benzothiazepine derivatives and their vasodilating and hypotensive activities. Journal of Medicinal Chemistry. 34(2). 675–687. 56 indexed citations
15.
Okamura, Kimio, et al.. (1989). The practical resolution of (2RS,3RS)-2-hydroxy-3-(4-methoxyphenyl)-3-(2-nitrophenylthio)propionic acid, a key intermediate for diltiazem, with L-lysine.. Chemical and Pharmaceutical Bulletin. 37(12). 3204–3208. 16 indexed citations
16.
Fujii, Tozo, Tohru Saito, & Tadamasa Date. (1989). Purines. XXXI. An X-ray crystallographic structure analysis of 3-methyladenosine p-toluene-sulfonate.. Chemical and Pharmaceutical Bulletin. 37(5). 1208–1212. 6 indexed citations
17.
Yoshida, Kiyoshi, Takeshi Ohnuma, Yoshio Ban, et al.. (1988). Synthetic approaches toward mitomycins: construction of p-quinone moiety on 1-benzazocine derivative. The Journal of Organic Chemistry. 53(22). 5355–5359. 20 indexed citations
18.
SAITO, Kunio, et al.. (1985). Asymmetric hydrogenation catalyzed by rhodium complex with a new chiral bisphosphine derived from L-threonine.. Chemical and Pharmaceutical Bulletin. 33(4). 1342–1350. 14 indexed citations
19.
Yamazaki, Takao, et al.. (1978). Photochemical Ring Contraction of 4-Pyrimidone. Formation of b-Lactam. Heterocycles. 9(4). 505–505. 1 indexed citations
20.
Hino, Tohru, et al.. (1977). Photodimerization of Indole Derivatives. Heterocycles. 7(1). 105–105. 5 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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