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DOI: 10.1039/A800733K (Paper) Reference Section for: J. Chem. Soc., Perkin Trans. 1, 1998, 1637-1642

Vicarious nucleophilic substitution of pyridazinium N-dicyanomethylides

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Takashi Itoh, Yûji Matsuya, Kazuhiro Nagata, Michiko Miyazaki, Nozomi Tsutsumi and Akio Ohsawa

Abstract

Pyridazines have been allowed to react with tetracyanoethylene oxide to give pyridazinium N-dicyanomethylides, which are subjected to vicarious nucleophilic substitution to afford the corresponding 4-substituted derivatives in moderate to good yields. The dicyanomethylene group is readily eliminated by a radical reaction, and 4-substituted pyridazines are obtained.

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