Highly Stereoselective Prins Cyclization of (Z)- and (E)-γ-Brominated Homoallylic Alcohols to 2,4,5,6-Tetrasubstituted Tetrahydropyrans
摘要:
An efficient method has been developed to construct 2,6-cis-4,5-dibromo-tetrasubstituted tetrahydropyran ( THP) rings with well-controlled stereochemistry in moderate to high yields.