Preparation of Oxocanes by Electrophilic Cyclizations of Unsaturated Alcohols in the Presence of Bis(collidine)halonium(I) Hexafluorophosphates.

Abstract

Presence of Bis(collidine)halonium(I) Hexafluorophosphates. -Unsaturated alcohols containing cyclic substituents in the carbon chain can undergo cyclization to oxocanes in the presence of bis(collidine)halonium(I) hexafluorophosphates. The yield is dependent on the nature and configuration of the substituents as well as on the length of the alcohol chain. -(MENDES, C.; RENARD, S.; ROFOO, M.; ROUX, M.-C.; ROUSSEAU*, G.; Eur.