Synthetic Approaches to Acyl Hydrazides and Their Use as Synthons in Organic Synthesis

Acyl hydrazides constitute very important moieties in organic chemistry and have been employed as starting materials for different transformations to many classes of organic compounds. In this review, at first the approaches towards the synthesis of acyl hydrazides are presented. Furthermore, in the second part, the uses of this skeleton as an important intermediate for the synthesis of useful organic compounds are analyzed.