Copper(II)−Bis(oxazoline) Catalyzed Asymmetric Diels−Alder Reaction with α′-Arylsulfonyl Enones as Dienophiles
作者:Santiago Barroso、Gonzalo Blay、Lina Al-Midfa、M. Carmen Muñoz、José R. Pedro
DOI:10.1021/jo8009227
日期:2008.8.1
α′-Arylsulfonyl enones are efficient bidentate dienophiles for the Cu(II)-bis(oxazoline) catalyzed enantioselective Diels−Alder reaction with a number of dienes, affording the corresponding products with good to high enantiomeric excesses. The resulting products can be alkylated and the sulfone removed, so α′-arylsulfonyl enones can be regarded as surrogates of simple monodentate enones, which are