title: Chiral Lewis acid-catalyzed highly enantioselective [4 + 3] cycloaddition reactions of nitrogen-stabilized oxyallyl cations derived from allenamides.
abstract: A chiral Lewis acid-catalyzed highly enantioselective [4 + 3] cycloaddition reaction of allenamide-derived nitrogen-stabilized chiral oxyallyl cations is described here. The use of bisoxazoline ligand and CuOTf2 provides high enantioselectivity, especially with [SbF6]- as the counteranion.
authors.affiliation: Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.
authors.forename: Jian
authors.initials: J
authors.lastname: Huang
authors.forename: Richard P
authors.initials: RP
authors.lastname: Hsung