The reaction of secondary α-keto-amide 2, 4, 6-tri-iso-propylbenzenesulphonylhydrazones with n-butyl-lithium generated, via a modified Shapiro reaction, the title carbanions (RCH= C C (O-) N̄R1]. These reacted at carbon with deuterium oxide, aldehydes, and ketones and are therefore most useful for the introduction of acrylate functionality.
