ChemInform Abstract: Azo Anions in Synthesis. Part 1. t‐Butylhydrazones as Acyl‐Anion Equivalents.

Abstract

The conversion (IIId) ‐ (VIII) exemplifies the use of the title compounds (III) [prepared from (I)] as acyl‐anion equivalents: anions of type (IV) generated from aldehydes (IIId)‐(IIIg) are treated with an electrophile such as (V) to yield (VI); subsequent tautomerization [‐ (VII)] and hydrolysis provides the target compound (VIII).