The stereochemical course of intramolecular vinylogous Mannich reactions
作者:Stephen F Martin、Scott K Bur
DOI:10.1016/s0040-4039(97)10080-6
日期:1997.11
Substituted furans 8a-d underwent cyclizations via vinylogous Mannich reactions to give the threo-adducts 9a-d as the major products (1.3 - 20:1); the effects of solvent, Lewis acid and temperature were examined.