M. Okada

478 total citations
35 papers, 287 citations indexed

About

M. Okada is a scholar working on Organic Chemistry, Molecular Biology and Pharmaceutical Science. According to data from OpenAlex, M. Okada has authored 35 papers receiving a total of 287 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Organic Chemistry, 3 papers in Molecular Biology and 3 papers in Pharmaceutical Science. Recurrent topics in M. Okada's work include Synthesis and Characterization of Heterocyclic Compounds (21 papers), Chemical Reaction Mechanisms (18 papers) and Synthesis and Biological Evaluation (14 papers). M. Okada is often cited by papers focused on Synthesis and Characterization of Heterocyclic Compounds (21 papers), Chemical Reaction Mechanisms (18 papers) and Synthesis and Biological Evaluation (14 papers). M. Okada collaborates with scholars based in Japan. M. Okada's co-authors include Akio Ohsawa, Takashi Itoh, Kazuhiro Nagata, H. IGETA, Kentaro Yamaguchi, Hiroshi Hasegawa, Heihachiro Arai, Hiroyuki Takahashi, Yûji Matsuya and Hiroshi Hasegawa and has published in prestigious journals such as The Journal of Organic Chemistry, Tetrahedron and Tetrahedron Letters.

In The Last Decade

M. Okada

32 papers receiving 256 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
M. Okada Japan	9	242	27	25	21	16	35	287
Robert K. Norris Australia	10	236 1.0×	68 2.5×	53 2.1×	20 1.0×	20 1.3×	33	284
Kenneth Schofield	10	220 0.9×	29 1.1×	39 1.6×	31 1.5×	40 2.5×	30	308
Dmitrii G. Mazhukin Russia	10	196 0.8×	17 0.6×	33 1.3×	15 0.7×	15 0.9×	51	336
Robert S. Neale United States	12	381 1.6×	36 1.3×	56 2.2×	52 2.5×	21 1.3×	19	453
M. V. GEORGE India	10	244 1.0×	48 1.8×	38 1.5×	22 1.0×	19 1.2×	27	310
Edward J. Panek United States	9	276 1.1×	27 1.0×	18 0.7×	19 0.9×	16 1.0×	11	310
R. Raap Canada	10	263 1.1×	28 1.0×	53 2.1×	15 0.7×	12 0.8×	21	314
C. Wismach Germany	11	270 1.1×	38 1.4×	45 1.8×	16 0.8×	17 1.1×	26	381
T. P. Tolstaya Russia	8	259 1.1×	24 0.9×	33 1.3×	39 1.9×	14 0.9×	44	325
Heihachiro Arai Japan	10	225 0.9×	41 1.5×	52 2.1×	24 1.1×	8 0.5×	44	271

Countries citing papers authored by M. Okada

Since Specialization

Citations

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

Fields of papers citing papers by M. Okada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of M. Okada

This figure shows the co-authorship network connecting the top 25 collaborators of M. Okada. A scholar is included among the top collaborators of M. 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 M. Okada. M. 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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20 of 20 papers shown

Itoh, Takashi, et al.. (1996). A new entry to the synthesis of 5-substituted 1,2,3-triazines by reaction with silyl enol ethers and ceric ammonium nitrate. Journal of the Chemical Society Perkin Transactions 1. 2511–2511. 4 indexed citations

Itoh, Takashi, Yûji Matsuya, Hiroshi Hasegawa, et al.. (1995). The synthesis of 5-substituted 1,2,3-triazines with ketene silyl acetals and ceric ammonium nitrate.. Chemical and Pharmaceutical Bulletin. 43(5). 881–883. 3 indexed citations

Itoh, Takashi, et al.. (1995). A regiospecific reaction of pyridazines with vicarious nucleophilic substitution via their dicyanomethylide derivatives. Journal of the Chemical Society Chemical Communications. 2067–2067. 3 indexed citations

Itoh, Takashi, Kazuhiro Nagata, M. Okada, & Akio Ohsawa. (1994). The Reaction of 1-Ethoxycarbonyl-3-methylbenzimidazolium Salts with Electrogenerated and Potassium Superoxide.. Chemical and Pharmaceutical Bulletin. 42(5). 1154–1156. 1 indexed citations

Nagata, Kazuhiro, Takashi Itoh, M. Okada, & Akio Ohsawa. (1993). Vicarious Nucleophilic Substitution of Pyridines and 1,2,3-Triazines via Their Dicyanomethylide Derivatives.. Chemical and Pharmaceutical Bulletin. 41(9). 1644–1648. 8 indexed citations

Ohsawa, Akio, Takashi Itoh, Kazuhiro Nagata, & M. Okada. (1993). Vicarious Nucleophilic Substitution of 1,2,3-Triazines. Heterocycles. 35(2). 581–581. 6 indexed citations

Yamaguchi, Kentaro, Hiroyuki Takahashi, Takashi Itoh, et al.. (1992). ChemInform Abstract: Structure of Benzo‐1,2,3,4‐tetrazine 1,3‐Dioxide.. ChemInform. 23(43). 1 indexed citations

Itoh, Takashi, Hiroshi Hasegawa, Kazuhiro Nagata, M. Okada, & Akio Ohsawa. (1992). Reaction of imidazoles with allyltributyltin in the presence of chloroformate. Tetrahedron Letters. 33(37). 5399–5402. 5 indexed citations

Itoh, Takashi, Kazuhiro Nagata, M. Okada, & Akio Ohsawa. (1992). The Reactions of 2-Methyl-1,2,3-triazinium Iodides and Related Compounds.. Chemical and Pharmaceutical Bulletin. 40(9). 2283–2286. 3 indexed citations

10.

Ohsawa, Akio, Takashi Itoh, M. Okada, & Kazuhiro Nagata. (1992). Thermolysis of 1,2,3-Triazines. Heterocycles. 34(6). 1183–1183. 4 indexed citations

11.

Yamaguchi, Kentaro, Takayuki Itoh, M. Okada, & Akio Ohsawa. (1991). Structure of 1,3,9-triphenylindeno[3,2-b]pyridine. Acta Crystallographica Section C Crystal Structure Communications. 47(8). 1764–1766.

12.

Yamaguchi, Kentaro, Takashi Itoh, M. Okada, Akio Ohsawa, & Go Matsumura. (1991). Two polymorphs of 5-carbamoyl-4-methyl-6-phenyl-1,2,3-triazine. Acta Crystallographica Section C Crystal Structure Communications. 47(10). 2256–2258.

13.

Ohsawa, Akio, Kazuhiro Nagata, Takashi Itoh, M. Okada, & Hiroyuki Takahashi. (1991). Radical Nucleophilic Carbamoylation of 1,2,3-Triazine Derivatives. Heterocycles. 32(10). 2015–2015. 5 indexed citations

14.

Itoh, Takashi, Kazuhiro Nagata, M. Okada, Hiroyuki Takahashi, & Akio Ohsawa. (1991). The substitution of 5-halo-1,2,3-triazines with electrolytically generated superoxide. Tetrahedron. 47(25). 4317–4324. 7 indexed citations

15.

Itoh, Takashi, M. Okada, Kazuhiro Nagata, Kentaro Yamaguchi, & Akio Ohsawa. (1990). The ring transformation of 1,2,3-triazines.. Chemical and Pharmaceutical Bulletin. 38(8). 2108–2111. 15 indexed citations

16.

Itoh, Takashi, Kazuhiro Nagata, M. Okada, & Akio Ohsawa. (1990). Redox properties of superoxide with 1,2,3-triazine derivatives. Tetrahedron Letters. 31(49). 7193–7196. 8 indexed citations

17.

Itoh, Takashi, Kazuhiro Nagata, M. Okada, & Akio Ohsawa. (1990). Electrooxidation of N-aminopyrazoles.. Chemical and Pharmaceutical Bulletin. 38(6). 1524–1526. 3 indexed citations

18.

Itoh, Takashi, Kazuhiro Nagata, M. Okada, & Akio Ohsawa. (1990). Reaction of 5-halo-1,2,3-triazines with superoxide; synthesis of 5-hydroxy-1,2,3-triazlnes. Tetrahedron Letters. 31(17). 2429–2430. 6 indexed citations

19.

Itoh, Takashi, et al.. (1985). Reaction of 1,2,3-triazine with dienophiles.. Chemical and Pharmaceutical Bulletin. 33(7). 3050–3052. 12 indexed citations

20.

Okada, M., et al.. (1980). The γ-brass structure at high pressure. Acta Crystallographica Section B. 36(8). 1762–1765. 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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