Kunisuke Okada

666 total citations
46 papers, 499 citations indexed

About

Kunisuke Okada is a scholar working on Organic Chemistry, Environmental Chemistry and Molecular Biology. According to data from OpenAlex, Kunisuke Okada has authored 46 papers receiving a total of 499 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Organic Chemistry, 17 papers in Environmental Chemistry and 13 papers in Molecular Biology. Recurrent topics in Kunisuke Okada's work include Marine Toxins and Detection Methods (17 papers), Synthesis and Biological Evaluation (14 papers) and bioluminescence and chemiluminescence research (9 papers). Kunisuke Okada is often cited by papers focused on Marine Toxins and Detection Methods (17 papers), Synthesis and Biological Evaluation (14 papers) and bioluminescence and chemiluminescence research (9 papers). Kunisuke Okada collaborates with scholars based in Japan and United States. Kunisuke Okada's co-authors include Hideo Tanino, Shoji Inoue, Hisae Kakoi, Toshio Goto, Hideo Iio, Tadao Kondo, Ichiro Kubota, Hiroyuki Takakura, Masahiro Kajiwara and Craig A. Townsend and has published in prestigious journals such as Tetrahedron, Tetrahedron Letters and Bulletin of the Chemical Society of Japan.

In The Last Decade

Kunisuke Okada

46 papers receiving 479 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kunisuke Okada Japan 13 299 186 63 57 44 46 499
Michael F. Lipton United States 9 672 2.2× 314 1.7× 31 0.5× 31 0.5× 35 0.8× 14 848
Goverdhan Mehta India 15 471 1.6× 116 0.6× 64 1.0× 22 0.4× 16 0.4× 57 611
Sudarshan K. Malhotra Canada 13 314 1.1× 276 1.5× 49 0.8× 35 0.6× 33 0.8× 22 645
Hideo Tanino Japan 14 594 2.0× 276 1.5× 79 1.3× 52 0.9× 59 1.3× 51 949
Michael G. Vetelino United States 10 459 1.5× 220 1.2× 40 0.6× 27 0.5× 16 0.4× 17 623
Mark C. McMills United States 15 477 1.6× 268 1.4× 23 0.4× 61 1.1× 15 0.3× 30 708
James H. Babler United States 15 548 1.8× 192 1.0× 38 0.6× 16 0.3× 9 0.2× 55 659
Pius A. Wehrli Switzerland 12 363 1.2× 227 1.2× 139 2.2× 8 0.1× 18 0.4× 21 577
Craig J. Mossman United States 12 422 1.4× 425 2.3× 20 0.3× 151 2.6× 16 0.4× 15 752
Sven Nerdinger Austria 12 275 0.9× 151 0.8× 34 0.5× 29 0.5× 43 1.0× 50 443

Countries citing papers authored by Kunisuke Okada

Since Specialization
Citations

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

Fields of papers citing papers by Kunisuke Okada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kunisuke Okada

This figure shows the co-authorship network connecting the top 25 collaborators of Kunisuke Okada. A scholar is included among the top collaborators of Kunisuke 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 Kunisuke Okada. Kunisuke Okada 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.
Okada, Kunisuke, et al.. (2000). Synthesis of a linear α-hydroxymethyl-pentapyrrole derivative and its cyclization to uroporphyrinogens. Tetrahedron Letters. 41(16). 2915–2918. 6 indexed citations
2.
Takakura, Hiroyuki, et al.. (1999). Isomerization of uroporphyrinogen I octamethyl ester through spiro-pyrrolenine intermediate. Tetrahedron Letters. 40(15). 2989–2992. 4 indexed citations
3.
Okada, Kunisuke & Masatake Niwa. (1998). Marine Toxins Implicated in Food Poisoning. Journal of Toxicology Toxin Reviews. 17(3). 373–384. 3 indexed citations
4.
Okada, Kunisuke, et al.. (1997). Asymmetric synthesis of the pentacyclic ring system of Aspidosperma alkaloids. Tetrahedron. 53(42). 14247–14254. 10 indexed citations
5.
Okada, Kunisuke, et al.. (1996). Asymmetric Synthesis of Key Synthetic Intermediates of Aspidosperma and Hunteria Type Indole Alkaloids. Heterocycles. 43(8). 1735–1735. 5 indexed citations
6.
Inoue, Shoji, Hideo Tanino, Hiroyuki Takakura, Hisae Kakoi, & Kunisuke Okada. (1996). (S)-2-Methyl-1,5-bis(1,3-dimethyl-6-lumazinyl)-1,5-pentanedione from the Marine Polychaete, Odontosyllis undecimdonta. Heterocycles. 42(1). 125–125. 11 indexed citations
7.
Okada, Kunisuke, et al.. (1994). Construction of a Chiral Quaternary Carbon Center via 1,2-Acyl Migration of an Optically Active α,β-Epoxy Ketone. Chemistry Letters. 23(1). 157–160. 12 indexed citations
8.
Inoue, Shoji, et al.. (1994). Total synthesis of (±)-surugatoxin. Tetrahedron. 50(9). 2729–2752. 25 indexed citations
9.
Okada, Kunisuke, et al.. (1994). Total synthesis of neosurugatoxin. Tetrahedron. 50(9). 2753–2770. 8 indexed citations
10.
Inoue, Shoji, Kunisuke Okada, Hideo Tanino, & Hisae Kakoi. (1993). A New Hexagonal Cyclic Enol Phosphate of 6-b-Hydroxypropionyllumazines from the Marine Swimming Polychaete, Odontosyllis undecimdonta. Heterocycles. 35(1). 147–147. 9 indexed citations
11.
12.
Okada, Kunisuke, et al.. (1989). A New Approach in the Construction of the Pentacyclic Ring System of Neosurugatoxin. Chemistry Letters. 18(5). 703–706. 3 indexed citations
13.
Inoue, Shoji, Kunisuke Okada, Hideo Tanino, & Hisae Kakoi. (1987). Chemical Studies on Myctophina Fish Bioluminescence. Chemistry Letters. 16(2). 417–418. 10 indexed citations
14.
Kakoi, Hisae, et al.. (1985). Model Experiments on Surugatoxin Synthesis. II. Synthesis of Ethyl 4-Amino-2-(6-bromo-2-oxo-3-indolinyl)-3-oxobutyrate Hydrochloride. YAKUGAKU ZASSHI. 105(4). 357–361. 3 indexed citations
15.
16.
Okada, Kunisuke, et al.. (1985). Model Experiments on Surugatoxin Synthesis. V. Construction of the Dehydrated Surugatoxin Ring System (2). YAKUGAKU ZASSHI. 105(4). 375–380. 1 indexed citations
17.
Inoue, Shoji, Hisae Kakoi, Kunisuke Okada, Hideo Tanino, & Toshio Goto. (1983). Trace characterization of the watasenia luciferin in eye and skin photophores and in liver of Watasenia scintillans.. Agricultural and Biological Chemistry. 47(3). 635–636. 7 indexed citations
18.
Okada, Kunisuke, Hideo Iio, Ichiro Kubota, & Toshio Goto. (1974). Firefly bioluminescence III. Conversion of oxyluciferin to luciferin in firefly. Tetrahedron Letters. 15(32). 2771–2774. 30 indexed citations
19.
Scott, A. Ian, Craig A. Townsend, Kunisuke Okada, & Masahiro Kajiwara. (1973). CONCERNING THE BIOSYNTHESIS OF VITAMIN B12*,†. Transactions of the New York Academy of Sciences. 35(1 Series II). 72–79. 21 indexed citations
20.
Tanino, Hideo, Tadao Kondo, Kunisuke Okada, & Toshio Goto. (1972). Structures of Three Isomeric Dimers of 2,4,5-Triphenylimidazolyl. Bulletin of the Chemical Society of Japan. 45(5). 1474–1480. 47 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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