Asymmetric Hetero Diels-Alder Reaction of Chiral Imines with Danishefsky's Diene Catalyzed by Yb(OTf)3
Abstract
Reaction of chiral imines with Danishefsky's diene in the presence of a catalytic amount (20 mol%) of ytterbium triflate afforded the corresponding hetero Diels-Alder adducts with a moderate to good diastereoselectivity.