Preparation and Characterization of 1,3-Dioplar Cycloaddition of Nitrones to N-Phenyl Maleimide

Abstract

It was found that the cycloaddition of α-(4-Methoxy)phenyl-N-Phenyl nitrone (1)to N-Phenyl maleimide gives the syn isoxazolidine(3),whereas α-(2-fluoro)phenyl-N-phenyl nitrone(2)to the same compound gives the anti-isoxazolidine(4), which has been identified by the IR spectroscopy, CHN analysis,