title: Catalytic ring expansion of vinyl oxetanes: asymmetric synthesis of dihydropyrans using chiral counterion catalysis.
authors.affiliation: Department of Chemistry and Biochemistry, University of Arizona, 1306 E. University Blvd., Tucson, AZ 85721, USA.
authors.forename: Boying
authors.initials: B
authors.lastname: Guo
authors.forename: Gregg
authors.initials: G
authors.lastname: Schwarzwalder
authors.forename: Jon T
authors.initials: JT
authors.lastname: Njardarson