Shigemitsu Okada

877 total citations
16 papers, 621 citations indexed

About

Shigemitsu Okada is a scholar working on Organic Chemistry, Inorganic Chemistry and Molecular Biology. According to data from OpenAlex, Shigemitsu Okada has authored 16 papers receiving a total of 621 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Organic Chemistry, 3 papers in Inorganic Chemistry and 2 papers in Molecular Biology. Recurrent topics in Shigemitsu Okada's work include Asymmetric Synthesis and Catalysis (10 papers), Organic Chemistry Cycloaddition Reactions (4 papers) and Oxidative Organic Chemistry Reactions (4 papers). Shigemitsu Okada is often cited by papers focused on Asymmetric Synthesis and Catalysis (10 papers), Organic Chemistry Cycloaddition Reactions (4 papers) and Oxidative Organic Chemistry Reactions (4 papers). Shigemitsu Okada collaborates with scholars based in Japan, United States and United Kingdom. Shigemitsu Okada's co-authors include Masakatsu Shibasaki, Shigeki Matsunaga, Tomofumi Kinoshita, Shinji Harada, Kentaro Yamaguchi, Shigeru Sakamoto, Naoya Kumagai, Yoshiaki Kato, Toshiaki Mase and Koji Tomimoto 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

Shigemitsu Okada

16 papers receiving 603 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Shigemitsu Okada Japan	10	555	205	134	43	35	16	621
Michael J. Rozema United States	15	677 1.2×	160 0.8×	119 0.9×	19 0.4×	36 1.0×	23	737
Mark J. Ford Germany	13	462 0.8×	121 0.6×	127 0.9×	51 1.2×	19 0.5×	37	555
Bruce S. Foster United States	12	541 1.0×	101 0.5×	131 1.0×	22 0.5×	24 0.7×	16	631
Yin Zheng China	14	624 1.1×	138 0.7×	106 0.8×	31 0.7×	13 0.4×	23	675
Rajkumar Halder India	10	849 1.5×	244 1.2×	245 1.8×	23 0.5×	29 0.8×	11	913
T. Srikanth Reddy India	14	604 1.1×	74 0.4×	179 1.3×	52 1.2×	37 1.1×	18	641
Martin E. Fox United Kingdom	14	433 0.8×	138 0.7×	129 1.0×	15 0.3×	17 0.5×	27	502
Jongrock Kong United States	12	705 1.3×	242 1.2×	179 1.3×	18 0.4×	24 0.7×	16	777
Tomofumi Kinoshita Japan	6	440 0.8×	192 0.9×	93 0.7×	37 0.9×	25 0.7×	6	475
Dong Young Oh South Korea	16	763 1.4×	94 0.5×	119 0.9×	22 0.5×	41 1.2×	83	820

Countries citing papers authored by Shigemitsu Okada

Since Specialization

Citations

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

Fields of papers citing papers by Shigemitsu Okada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Shigemitsu Okada

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

All Works

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16 of 16 papers shown

1.

Pipik, Brenda, Jaemoon Lee, Yoshinori Kohmura, et al.. (2008). Practical Synthesis of a HIV Integrase Inhibitor. Organic Process Research & Development. 12(6). 1245–1252. 9 indexed citations

2.

Matsunaga, Shigeki, Hong‐Bo Qin, Shigemitsu Okada, et al.. (2006). Catalytic asymmetric epoxidation of α,β-unsaturated N-acylpyrroles as monodentate and activated ester equivalent acceptors. Tetrahedron. 62(28). 6630–6639. 18 indexed citations

3.

Matsunaga, Shigeki, Tomofumi Kinoshita, Shigemitsu Okada, Shinji Harada, & Masakatsu Shibasaki. (2004). Catalytic Asymmetric 1,4-Addition Reactions Using α,β-Unsaturated N-Acylpyrroles as Highly Reactive Monodentate α,β-Unsaturated Ester Surrogates. Journal of the American Chemical Society. 126(24). 7559–7570. 130 indexed citations

4.

Kinoshita, Tomofumi, et al.. (2003). Sequential Wittig Olefination–Catalytic Asymmetric Epoxidation with Reuse of Waste Ph₃P(O): Application of α,β‐Unsaturated N‐Acyl Pyrroles as Ester Surrogates. Angewandte Chemie International Edition. 42(38). 4680–4684. 74 indexed citations

5.

Kumagai, Naoya, Shigeki Matsunaga, Tomofumi Kinoshita, et al.. (2003). Direct Catalytic Asymmetric Aldol Reaction of Hydroxyketones: Asymmetric Zn Catalysis with a Et₂Zn/Linked-BINOL Complex. Journal of the American Chemical Society. 125(8). 2169–2178. 172 indexed citations

6.

Kinoshita, Tomofumi, et al.. (2003). Sequential Wittig Olefination–Catalytic Asymmetric Epoxidation with Reuse of Waste Ph₃P(O): Application of α,β‐Unsaturated N‐Acyl Pyrroles as Ester Surrogates. Angewandte Chemie. 115(38). 4828–4832. 29 indexed citations

7.

Kato, Yoshiaki, Kenji Niiyama, Hideki Jona, et al.. (2002). Asymmetric Synthesis of a Selective Endothelin A Receptor Antagonist.. Chemical and Pharmaceutical Bulletin. 50(8). 1066–1072. 7 indexed citations

8.

Kato, Yoshiaki, Kenji Niiyama, Takayuki Nemoto, et al.. (2002). Asymmetric synthesis of a selective endothelin A receptor antagonist. Tetrahedron. 58(17). 3409–3415. 14 indexed citations

9.

Song, Zhiguo J., Lisa Frey, Jing Li, et al.. (2001). Practical Asymmetric Synthesis of a Selective Endothelin A Receptor (ETA) Antagonist. Organic Letters. 3(21). 3357–3360. 22 indexed citations

10.

Kato, Yoshiaki, Shigemitsu Okada, Koji Tomimoto, & Toshiaki Mase. (2001). A facile bromination of hydroxyheteroarenes. Tetrahedron Letters. 42(29). 4849–4851. 48 indexed citations

11.

Devine, Paul N., Richard Desmond, Lisa Frey, et al.. (1999). Asymmetric Synthesis of an Endothelin Receptor Antagonist.. Journal of Synthetic Organic Chemistry Japan. 57(11). 1016–1025. 2 indexed citations

12.

Song, Zhiguo J., Mangzhu Zhao, Richard Desmond, et al.. (1999). Practical Asymmetric Synthesis of an Endothelin Receptor Antagonist. The Journal of Organic Chemistry. 64(26). 9658–9667. 69 indexed citations

13.

Ohtake, Norikazu, Hideaki Imamura, Hideki Jona, et al.. (1997). Novel dithiocarbamate carbapenems1 with anti-MRSA activity. Bioorganic & Medicinal Chemistry Letters. 7(13). 1617–1622. 9 indexed citations

14.

Ohtake, Norikazu, et al.. (1997). Diastereoselective synthesis of the key intermediate of the BO-2727 side chain. Tetrahedron Asymmetry. 8(17). 2939–2947. 7 indexed citations

15.

Armstrong, Joseph D., Jennifer Keller, Joseph E. Lynch, et al.. (1997). An efficient asymmetric synthesis of the mercaptopyrrolidine side chain of an important β-methyl carbapenem antibiotic. Tetrahedron Letters. 38(18). 3203–3206. 8 indexed citations

16.

Noyori, Ryōji & Shigemitsu Okada. (1990). Mutual recognition of enantiomers.. Journal of Synthetic Organic Chemistry Japan. 48(6). 447–456. 3 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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