Research Article
Substituent Effects on Regioselectivity of the Diels-Alder Reactions: Reactions of 10-Allyl-1,8-dichloroanthracene with 2-Chloroacrylonitrile, 1-Cyanovinyl Acetate and Phenyl Vinyl Sulfone
Scheme 1
Preparation of the intermediate 10-allyl-1,8-dichloroanthracene (3).