Synthesis of 1, 2-Diazol-4-sulfonamides, 1, 2, 4-and 1, 2, 5-Oxadiazol-3-sulfonamides, 1, 2, 3-Triazol-4-sulfonamides, and Pyrimidine-5-sulfonamides starting from …

M Winterwerber, R Geiger, HH Otto

Index: Winterwerber, Martin; Geiger, Rouzita; Otto, Hans-Hartwig Monatshefte fur Chemie, 2006 , vol. 137, # 10 p. 1321 - 1347

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Citation Number: 5

Abstract

Summary. Cyanomethanesulfonyl chloride was reacted with amines yielding cyanomethanesulfonamides which could be transformed into alkoxymethylidene and aminomethylidene derivatives. The reaction of alkoxymethylidene derivatives with phenylhydrazine resulted in the formation of 5-aminopyrazol-4-sulfonamides, whereas from cyanomethanesulfonamides via the N-hydroxyamidine derivatives and their reaction with ...