Abstract
Sesquiterpene adducts have been obtained by the reactions of 3-methyl-3-cyanocyclopropene with (-) -pinene and (-)carvone, proceeding by Alder-ene pathway. In the reaction with -pinene only one diastereoisomer (∼95 %) was formed, while in the case of carvone a mixture of two diastereoisomers almost in equal quantities (55:45) was obtained.
Keywords: Alder-ene reaction, NMR, stereochemistry