Nitrones and oxaziridines. XVI. Synthesis of 3-Hydroxyimino- and 3-Oxo-1-pyrroline 1-oxides by reductive cyclization reactions

Abstract

5,5-Dimethyl-2-phenyl- (8a), 2-t-butyl-5,5-dimethyl- (8b) and 2,5,5- trimethyl- (8c) 3-oxo-1-pyrroline 1-oxides have been synthesized by hydrolysis of the respective 3-hydroxyimino-1-pyrroline 1-oxides,which have in turn been prepared by the sequential nitrosation and reductive cyclization of γ-nitrocarbonyl compounds.