Verfahren zur Herstellung von in 2-Stellung substituierten 1-Acylhydrazinen

摘要

The present invention can provide a process for the preparation of an 1-acyl-2-substituted hydrazine compound from a mixture containing the 1-acyl-2-substituted hydrazine and an 1-acyl-1-substituted hydrazine by selective hydrolysis or alcoholysis of the 1-acyl-1-substituted hydrazine in the presence of an acid catalyst, and by separation of the resulting carboxylic acid and derivative thereof. The 1-acyl-2-alkyl hydrazine obtained has a high purity.