A novel ring-opening of a 2-alkyl-5-imino-4-nitro-2,5-dihydroisothiazole by cyanide ion

Rajappa, Srinivasachari ; Advani, Bhagwan G. ; Kartha, Gopinath ; Hartloff, Holly (1983) A novel ring-opening of a 2-alkyl-5-imino-4-nitro-2,5-dihydroisothiazole by cyanide ion Journal of the Chemical Society, Perkin Transactions 1 . pp. 1953-1955. ISSN 0300-922X

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Official URL: http://pubs.rsc.org/en/content/articlelanding/1983...

Related URL: http://dx.doi.org/10.1039/P19830001953

Abstract

Reaction of 2-methyl-3-methylamino-4-nitro-5-phenylimino-2,5-dihydroisothiazole (1b) with cyanide ion proceeds with two successive sequences of ring-opening and ring-closure with the ultimate generation of 2,5-bis(methylamino)-4-nitro-3-phenylimino-3H-pyrrole (2b) or its tautomer (2a).

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