Cycloadditions of 1,2,3-triphenylaziridine via the azomethine ylide
Abstract
The pyrrolidine derivatives, which were obtained from 1,2,3-triphenylaziridine (configuration unknown) and dialkyl fumarate, dialkyl maleate, or trans-dibenzolyethylene, possess 2,5-trans-phenyl groups; the trans-substituted azomethine ylide must be the intermediate which undergoes the 1,3-dipolar cycloaddition.