Evidence for cis- and trans-1,2,3-triphenylaziridine from the ring-opened azomethine ylides
Abstract
cis-1,2,3-Triphenylaziridine equilibrates at 150° with the trans-isomer until a 78 : 22 mixture is attained.; the configurational assignments are based on the conrotatory ring-openings to azomethine ylides which were intercepted by suitable dipolarophiles.