Abstract
AbstractReactions of aniline with 3‐arylsydnone‐4‐carbohydroximic acid chlorides (1) gave the de sired substitution products 5. 3‐Arylsydnone‐4‐carboxamide phenylhydrazones (7) were obtained unexpectedly by the reaction of carbohydroximic acid chlorides 1 with phenylhydrazine in suitable conditions. Compounds 7 could react with both aromatic and aliphatic aldehydes in the presence of acid catalyst to give 3‐aryl‐4‐(1′‐phenyl‐5′‐substituted‐1′,2′,4′‐triazol‐3′‐yl)sydnones (11).
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