Jun Takehara

1.7k total citations · 2 hit papers
5 papers, 1.5k citations indexed

About

Jun Takehara is a scholar working on Inorganic Chemistry, Process Chemistry and Technology and Molecular Biology. According to data from OpenAlex, Jun Takehara has authored 5 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Inorganic Chemistry, 3 papers in Process Chemistry and Technology and 2 papers in Molecular Biology. Recurrent topics in Jun Takehara's work include Asymmetric Hydrogenation and Catalysis (4 papers), Carbon dioxide utilization in catalysis (3 papers) and Catalysis for Biomass Conversion (2 papers). Jun Takehara is often cited by papers focused on Asymmetric Hydrogenation and Catalysis (4 papers), Carbon dioxide utilization in catalysis (3 papers) and Catalysis for Biomass Conversion (2 papers). Jun Takehara collaborates with scholars based in Japan. Jun Takehara's co-authors include Takao Ikariya, Ryōji Noyori, Akio Fujii, Shohei Hashiguchi, Shin-ichi INOUE, Kazuya Okano, Sylvain Collet, F. Ohno, Ken Tanaka and Kyôhei Yamashita and has published in prestigious journals such as Journal of the American Chemical Society, Chemical Communications and The Journal of Organic Chemistry.

In The Last Decade

Jun Takehara

5 papers receiving 1.5k citations

Hit Papers

Asymmetric Transfer Hydrogenation of Aromatic Ketones Cat... 1995 2026 2005 2015 1995 1996 250 500 750 1000
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Asymmetric Transfer Hydrogenation of Aromatic Ketones Catalyzed by Chiral Ruthenium(II) Complexes
    1995 1.1k citations Shohei Hashiguchi, Akio Fujii et al. Journal of the American Chemical Society profile →
  2. Amino alcohol effects on the ruthenium(II)-catalysed asymmetric transfer hydrogenation of ketones in propan-2-ol
    1996 277 citations Jun Takehara, Shohei Hashiguchi et al. Chemical Communications profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Jun Takehara Japan 5 1.3k 778 704 429 330 5 1.5k
Tohru Yokozawa Japan 8 1.3k 1.0× 1.0k 1.3× 656 0.9× 391 0.9× 213 0.6× 11 1.7k
Eiji Katayama Japan 10 900 0.7× 702 0.9× 491 0.7× 310 0.7× 178 0.5× 13 1.2k
Masami Kozawa Japan 8 936 0.7× 638 0.8× 502 0.7× 269 0.6× 188 0.6× 9 1.2k
Noriyoshi Arai Japan 23 947 0.7× 995 1.3× 531 0.8× 305 0.7× 202 0.6× 65 1.5k
Kunihiko Tsutsumi Japan 9 806 0.6× 474 0.6× 455 0.6× 162 0.4× 232 0.7× 9 915
Qiongzhong Jiang United States 16 1.1k 0.8× 1.1k 1.5× 350 0.5× 382 0.9× 154 0.5× 21 1.5k
Paul A. Slatford United Kingdom 14 1.4k 1.1× 1.3k 1.6× 254 0.4× 557 1.3× 494 1.5× 15 1.7k
Weiping Chen China 25 956 0.7× 1.1k 1.4× 420 0.6× 362 0.8× 157 0.5× 52 1.5k
Jianzhong Chen China 23 1.1k 0.9× 1.0k 1.3× 633 0.9× 291 0.7× 136 0.4× 51 1.6k
Theo Zweifel Denmark 12 775 0.6× 1.2k 1.5× 129 0.2× 360 0.8× 211 0.6× 13 1.4k

Countries citing papers authored by Jun Takehara

Since Specialization
Citations

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

Fields of papers citing papers by Jun Takehara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jun Takehara

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

All Works

5 of 5 papers shown
1.
Takehara, Jun, et al.. (2000). Practical Synthesis of (S)-1-(3-Trifluoromethylphenyl)ethanol via Ruthenium(II)-catalyzed Asymmetric Transfer Hydrogenation. Organic Process Research & Development. 4(5). 346–348. 63 indexed citations
2.
Tanaka, Ken, et al.. (1999). Practical Asymmetric Synthesis of (S)-MA20565, a Wide-Spectrum Agricultural Fungicide. The Journal of Organic Chemistry. 65(2). 432–437. 59 indexed citations
3.
Takehara, Jun, Shohei Hashiguchi, Akio Fujii, et al.. (1996). Amino alcohol effects on the ruthenium(II)-catalysed asymmetric transfer hydrogenation of ketones in propan-2-ol. Chemical Communications. 233–233. 277 indexed citations breakdown →
4.
Hashiguchi, Shohei, Akio Fujii, Jun Takehara, Takao Ikariya, & Ryōji Noyori. (1995). Asymmetric Transfer Hydrogenation of Aromatic Ketones Catalyzed by Chiral Ruthenium(II) Complexes. Journal of the American Chemical Society. 117(28). 7562–7563. 1080 indexed citations breakdown →
5.
Takehara, Jun, Takayuki Oritani, & Kyôhei Yamashita. (1991). Synthesis of Chiral Methyl Cucurbate and Its Analogs.. Agricultural and Biological Chemistry. 55(12). 2939–2944. 7 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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2026