Takehisa Ishimaru

1.7k total citations
13 papers, 1.5k citations indexed

About

Takehisa Ishimaru is a scholar working on Pharmaceutical Science, Organic Chemistry and Molecular Biology. According to data from OpenAlex, Takehisa Ishimaru has authored 13 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Pharmaceutical Science, 10 papers in Organic Chemistry and 5 papers in Molecular Biology. Recurrent topics in Takehisa Ishimaru's work include Fluorine in Organic Chemistry (11 papers), Asymmetric Synthesis and Catalysis (6 papers) and Chemical Synthesis and Analysis (3 papers). Takehisa Ishimaru is often cited by papers focused on Fluorine in Organic Chemistry (11 papers), Asymmetric Synthesis and Catalysis (6 papers) and Chemical Synthesis and Analysis (3 papers). Takehisa Ishimaru collaborates with scholars based in Japan and United States. Takehisa Ishimaru's co-authors include Norio Shibata, Takeshi Toru, Shuichi Nakamura, Shuji Kanemasa, Takao Horikawa, Motoo Shiro, Jun Nagai, Kenneth L. Kirk, Emiko Suzuki and M. Shiro and has published in prestigious journals such as Journal of the American Chemical Society, Angewandte Chemie International Edition and The Journal of Organic Chemistry.

In The Last Decade

Takehisa Ishimaru

13 papers receiving 1.5k citations

Peers

Takehisa Ishimaru

OC

PS

IC

MB

PCT

Feng‐Lian Zhang China

Grégory Danoun France

Danfeng Huang China

Dafna Amir Israel

Yichen Wu China

Atsushi Tarui Japan

Kotaro Kikushima Japan

Dmitry Katayev Switzerland

Bart Herlé Spain

Thomas Scattolin Germany

Feng‐Lian Zhang China

Takehisa Ishimaru

1.8k ×1.3

OC

478 ×0.5

PS

297 ×0.7

IC

181 ×0.7

MB

49 ×1.3

PCT

Citations per year, relative to Takehisa Ishimaru Takehisa Ishimaru (= 1×) peers Feng‐Lian Zhang

Countries citing papers authored by Takehisa Ishimaru

Since Specialization

Citations

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

Fields of papers citing papers by Takehisa Ishimaru

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takehisa Ishimaru

This figure shows the co-authorship network connecting the top 25 collaborators of Takehisa Ishimaru. A scholar is included among the top collaborators of Takehisa Ishimaru 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 Takehisa Ishimaru. Takehisa Ishimaru is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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13 of 13 papers shown

1.

Yasui, Hiroyuki, Takeshi Yamamoto, Takehisa Ishimaru, et al.. (2011). N-Fluoro-(3,5-di-tert-butyl-4-methoxy)benzenesulfonimide (NFBSI): A sterically demanding electrophilic fluorinating reagent for enantioselective fluorination. Journal of Fluorine Chemistry. 132(3). 222–225. 26 indexed citations

2.

Ishimaru, Takehisa, Shinichi Ogawa, Etsuko Tokunaga, Shuichi Nakamura, & Norio Shibata. (2009). Asymmetric synthesis of α-fluoro-α-sulfenyl-β-ketoesters using DBFOX–Ph/Ni(II) complex. Journal of Fluorine Chemistry. 130(11). 1049–1053. 27 indexed citations

3.

Ishimaru, Takehisa, Norio Shibata, Dhande Sudhakar Reddy, et al.. (2008). DBFOX-Ph/metal complexes: Evaluation as catalysts for enantioselective fluorination of 3-(2-arylacetyl)-2-thiazolidinones. Beilstein Journal of Organic Chemistry. 4. 16–16. 21 indexed citations

4.

Ishimaru, Takehisa, Norio Shibata, Takao Horikawa, et al.. (2008). Cinchona Alkaloid Catalyzed Enantioselective Fluorination of Allyl Silanes, Silyl Enol Ethers, and Oxindoles. Angewandte Chemie International Edition. 47(22). 4157–4161. 304 indexed citations

5.

Ishimaru, Takehisa, et al.. (2008). Cinchona Alkaloid Catalyzed Enantioselective Fluorination of Allyl Silanes, Silyl Enol Ethers, and Oxindoles. Angewandte Chemie. 120(22). 4225–4229. 111 indexed citations

6.

Shibata, Norio, Takehisa Ishimaru, Shuichi Nakamura, & Takeshi Toru. (2007). New approaches to enantioselective fluorination: Cinchona alkaloids combinations and chiral ligands/metal complexes. Journal of Fluorine Chemistry. 128(5). 469–483. 153 indexed citations

7.

Ishimaru, Takehisa, Norio Shibata, Jun Nagai, et al.. (2006). Lewis Acid-Catalyzed Enantioselective Hydroxylation Reactions of Oxindoles and β-Keto Esters Using DBFOX Ligand. Journal of the American Chemical Society. 128(51). 16488–16489. 243 indexed citations

8.

Shibata, Norio, et al.. (2005). Highly Enantioselective Catalytic Fluorination and Chlorination Reactions of Carbonyl Compounds Capable of Two‐Point Binding. Angewandte Chemie International Edition. 44(27). 4204–4207. 288 indexed citations

9.

Shibata, Norio, et al.. (2005). 20‐Deoxy‐20‐fluorocamptothecin: Design and Synthesis of Camptothecin Isostere.. ChemInform. 36(19). 1 indexed citations

10.

Shibata, Norio, et al.. (2005). Highly Enantioselective Catalytic Fluorination and Chlorination Reactions of Carbonyl Compounds Capable of Two‐Point Binding. Angewandte Chemie. 117(27). 4276–4279. 98 indexed citations

11.

Shibata, Norio, et al.. (2004). 20-Deoxy-20-fluorocamptothecin: Design and Synthesis of Camptothecin Isostere. Synlett. 2004(14). 2509–2512. 46 indexed citations

12.

Shibata, Norio, et al.. (2004). First Enantio-Flexible Fluorination Reaction Using Metal-Bis(oxazoline) Complexes. Synlett. 1703–1706. 110 indexed citations

13.

Shibata, Norio, Takehisa Ishimaru, Emiko Suzuki, & Kenneth L. Kirk. (2003). Enantioselective Fluorination Mediated by N-Fluoroammonium Salts of Cinchona Alkaloids: First Enantioselective Synthesis of BMS-204352 (MaxiPost). The Journal of Organic Chemistry. 68(6). 2494–2497. 89 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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