Toshiharu Ohta

2.1k total citations
79 papers, 1.7k citations indexed

About

Toshiharu Ohta is a scholar working on Organic Chemistry, Molecular Biology and Materials Chemistry. According to data from OpenAlex, Toshiharu Ohta has authored 79 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Organic Chemistry, 23 papers in Molecular Biology and 11 papers in Materials Chemistry. Recurrent topics in Toshiharu Ohta's work include Synthesis and Biological Evaluation (13 papers), Synthesis and Reactions of Organic Compounds (11 papers) and Chemical Reaction Mechanisms (10 papers). Toshiharu Ohta is often cited by papers focused on Synthesis and Biological Evaluation (13 papers), Synthesis and Reactions of Organic Compounds (11 papers) and Chemical Reaction Mechanisms (10 papers). Toshiharu Ohta collaborates with scholars based in Japan, United States and Germany. Toshiharu Ohta's co-authors include Koichi Shudo, Atsushi Yamamoto, Junyou Yang, Tatsuhiko Aizawa, Kiyoshi Nakayama, Toshihiko Okamoto, Ving J. Lee, Haruko C. Kawato, Tomohiko Ohwada and Thomas E. Renau and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Medicinal Chemistry and The Journal of Organic Chemistry.

In The Last Decade

Toshiharu Ohta

77 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Toshiharu Ohta Japan 24 655 476 408 370 228 79 1.7k
P. Claes Belgium 21 459 0.7× 438 0.9× 63 0.2× 231 0.6× 176 0.8× 138 1.6k
Natalia Díaz Spain 24 346 0.5× 728 1.5× 194 0.5× 249 0.7× 113 0.5× 79 1.6k
Sérgio M. Santos Portugal 32 433 0.7× 437 0.9× 97 0.2× 697 1.9× 74 0.3× 65 2.8k
Daqiang Wu China 21 380 0.6× 754 1.6× 98 0.2× 241 0.7× 203 0.9× 85 2.4k
Predrag Novak Croatia 20 511 0.8× 309 0.6× 43 0.1× 288 0.8× 110 0.5× 103 1.4k
M.V.N. De Souza Brazil 33 2.5k 3.8× 996 2.1× 55 0.1× 182 0.5× 319 1.4× 302 3.9k
Daniel T. W. Chu United States 23 1.1k 1.7× 913 1.9× 154 0.4× 55 0.1× 313 1.4× 75 1.7k
Lian‐Shun Feng China 25 2.6k 3.9× 1.6k 3.3× 201 0.5× 131 0.4× 380 1.7× 39 3.5k
A. G. BROWN United States 19 425 0.6× 556 1.2× 281 0.7× 153 0.4× 637 2.8× 48 1.5k
Guillermina Estiú Argentina 26 557 0.9× 804 1.7× 42 0.1× 393 1.1× 137 0.6× 82 2.3k

Countries citing papers authored by Toshiharu Ohta

Since Specialization
Citations

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

Fields of papers citing papers by Toshiharu Ohta

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toshiharu Ohta

This figure shows the co-authorship network connecting the top 25 collaborators of Toshiharu Ohta. A scholar is included among the top collaborators of Toshiharu Ohta 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 Toshiharu Ohta. Toshiharu Ohta 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.
Kikkawa, Takamaro, Kenji Hashimoto, Xia Xiao, et al.. (2015). Digital confocal imaging of breast cancer using UWB-CMOS integrated circuits. European Conference on Antennas and Propagation. 1–4. 1 indexed citations
2.
3.
Nagata, Tsutomu, et al.. (2011). Orally active zwitterionic factor Xa inhibitors with long duration of action. Bioorganic & Medicinal Chemistry Letters. 21(24). 7337–7343. 1 indexed citations
4.
Yoshikawa, Kenji, Toshiharu Yoshino, Yoshihiro Yokomizo, et al.. (2011). Design, synthesis and SAR of novel ethylenediamine and phenylenediamine derivatives as factor Xa inhibitors. Bioorganic & Medicinal Chemistry Letters. 21(7). 2133–2140. 10 indexed citations
5.
Naito, Hiroyuki, et al.. (2008). Enantioselective Synthesis of Piperidine Diamine Derivatives as Novel fXa Inhibitors. Heterocycles. 75(7). 1659–1659. 2 indexed citations
6.
Nakayama, Kiyoshi, Masami Ohtsuka, Yoshihiro Yokomizo, et al.. (2004). MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 4: Addressing the problem of poor stability due to photoisomerization of an acrylic acid moiety. Bioorganic & Medicinal Chemistry Letters. 14(10). 2493–2497. 43 indexed citations
7.
Nakayama, Kiyoshi, Yohei Ishida, Masami Ohtsuka, et al.. (2003). MexAB-OprM-Specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 1: Discovery and early strategies for lead optimization. Bioorganic & Medicinal Chemistry Letters. 13(23). 4201–4204. 66 indexed citations
8.
Nakayama, Kiyoshi, Yohei Ishida, Masami Ohtsuka, et al.. (2003). MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 2: achieving activity in vivo through the use of alternative scaffolds. Bioorganic & Medicinal Chemistry Letters. 13(23). 4205–4208. 48 indexed citations
9.
Kuwabara, Kosuke, Katsushi Tanaka, H. Inui, et al.. (2002). Crystal structure and thermoelectric properties of ReSi1.75 silicide. MRS Proceedings. 753. 8 indexed citations
10.
11.
Satoh, Toshihiko, Masaaki Ono, Masakazu Hattori, et al.. (1999). Deletion of Alal44-Lysl45 in Thermus thermophilus Inorganic Pyrophosphatase Suppresses Thermal Aggregation. The Journal of Biochemistry. 125(5). 858–863. 1 indexed citations
12.
Renau, Thomas E., Roger Léger, Eric M. Flamme, et al.. (1999). Inhibitors of Efflux Pumps in Pseudomonas aeruginosa Potentiate the Activity of the Fluoroquinolone Antibacterial Levofloxacin. Journal of Medicinal Chemistry. 42(24). 4928–4931. 219 indexed citations
13.
Ohta, Toshiharu, et al.. (1994). LIFE PREDICTION OF EXISTING REINFORCED CONCRETE STRUCTURES DETERMINED BY CORROSION. 3 indexed citations
14.
Chiba, Yasuo, I. Endo, T. Ohsugi, et al.. (1990). Position sensitive radiation detector using a heterojunction of amorphous and crystalline silicon. Nuclear Physics B - Proceedings Supplements. 16. 507–507. 1 indexed citations
15.
Somei, Masanori & Toshiharu Ohta. (1989). A Regioselective Synthesis Method of Tri- and Tetrahalogenoindoles and Its Application for the Total Syntheses of Marine Alkaloids. Heterocycles. 29(9). 1663–1663. 3 indexed citations
16.
Somei, Masanori, et al.. (1988). A Simple Synthesis of 7-Substituted 1-Acethy-2,3-dihydroindoles. Heterocycles. 27(10). 2363–2363. 6 indexed citations
17.
Hashimoto, Yuichi, Toshiharu Ohta, Koichi Shudo, & Toshihiko Okamoto. (1978). Reactions of 4-Hydroxy-2H-1,4-benzoxazin-3-one Derivatives with Some Nucleophiles. Heterocycles. 9(1). 109–109. 2 indexed citations
18.
Takeda, Kei, Toshiharu Ohta, Koichi Shudo, et al.. (1977). Synthesis of a mutagenic principle isolated from tryptophan pyrolysate.. Chemical and Pharmaceutical Bulletin. 25(8). 2145–2146. 27 indexed citations
19.
Ohta, Toshiharu, Yasuyuki Endo, Koichi Shudo, & Toshihiko Okamoto. (1976). Reactions of Arylhydroxylamines and Related Compounds with Benzene. An Application to Heterocyclic Chemistry. Heterocycles. 4(11). 1862–1862. 1 indexed citations
20.
Okamoto, Toshihiko, Koichi Shudo, & Toshiharu Ohta. (1975). Acid-catalyzed reaction of arylhydroxylamines with benzene. Selectivity of the reaction sites. Journal of the American Chemical Society. 97(24). 7184–7185. 23 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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