On the scope of acylnitrilium ion initiated heteroannulations: monocyclizations terminated by unactivated alkenes
Abstract
Intramolecular trapping of transient acylnitrilium ions by di- and tri-substituted alkenes has been shown to occur with reasonable efficiency to provide the corresponding 2,3,4,5-tetrahydropyridine and 3,4-dihydro-2H-pyrrole derivatives in moderate overall yield.