Diastereoselection in the Lewis Acid Catalyzed Cycloaddition Reaction of α-Alkoxy Imines
The Lewis acid catalyzed cycloaddition reactions of α-benzyloxy imines (RCH(OCH2C6H5)CH=NCH2C6H5) were investigated using 1,3-dimethoxy-1--1,3-butadiene.The observed diastereoselectivity was dependent on both the Lewis acid and substr