An insight into the Lewis acid-catalyzed intramolecular aminocyanation and oxycyanation of alkenes: a concerted or stepwise mechanism†
Abstract
Density functional theory investigations reveal that the intramolecular additions of N–CN bonds to alkenes proceed in a novel asynchronous and concerted mechanism, while the intramolecular addition of O–CN bonds to alkenes may occur by both concerted and stepwise pathways.