Readily accessible β-chloroacyl-α-chloroenamines have two reactive Cl atoms which can be substituted successively with nucleophilic reagents. An ynamine amide and an ynamine ester have been prepared from N,N-diethylchloroacetamide via its β-chloro-β-chloroacyl-β-chloroenamine by chlorine elimination with lithium amalgam.
易于获得的β-
氯酰基-α-
氯亚胺具有两个反应性Cl原子,这些原子可连续被亲核试剂取代。由N,N-
二乙基氯乙酰胺经由其β-
氯-β-
氯酰基-β-
氯亚胺通过用
汞齐
锂进行
氯消除而制备了
乙胺酰胺和
乙胺酯。