Aromatic and aliphatic N,O-divinylhydroxylamine systems generated in situ from hydroxylamine derivatives smoothly undergo [3,3] rearrangement. The base-catalyzed formation and rearrangement of enolates or dienolates of N-aryl-O-acylhydroxylamines, N,O- diacylhydroxylamines and N-acylhydroxylamine-O-carbamates result in C-C or C-N bond formation with cleavage of the N -O bond.
由
羟胺衍
生物就地生成的芳香族和脂肪族N,O-双
乙烯基羟胺体系能顺利进行[3,3]重排反应。碱催化形成的烯醇盐或双烯醇盐的N-芳基-O-酰基
羟胺、N,O-双酰基
羟胺和N-酰基
羟胺-O-
氨基甲酸酯,能够在N-O键断裂的同时形成C-C或C-N键。