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Communication | Regular issue | Vol 32, No. 5, 1991, pp.855-857
Published online, 1st January, 1970
DOI: 10.3987/COM-91-5711
Radical Carbamoylation of 1,2,3-Triazinium 2-Dicyanomethylides

Kazuhiro Nagata, Takashi Itoh, Mamiko Okada, Hiroyuki Takahashi, and Akio Ohsawa*

*School of Pharmaceutical Sciences, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan

Abstract

The nucleophilic radical carbamoylation of 4,6-disubstituted 1,2,3-triazinium 2-dicyanomethylides occurred at their 5-positions followed by the elimination of dicyanomethylene to form 5-substituted 1,2,3-triazines. The reaction did not proceed when parent triazines were adopted as the substrates.