title: Diels-Alder reactions of quinol lactones: a change of regioselectivity with stannic chloride catalysis.
abstract: Lewis acid-mediated Diels-Alder reactions of quinol lactone 2 gave regioselectivity opposite to that of the uncatalyzed reaction. Compound 12 is proposed as the reactive intermediate generated by the reaction of 2 with stannic chloride.
authors.affiliation: Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA. gakraus@iastate.edu
authors.forename: George A
authors.initials: GA
authors.lastname: Kraus
authors.forename: Wenge
authors.initials: W
authors.lastname: Cui