title: An annulation toward fused bicyclolactones.
abstract: The combination of Lewis and Bronsted acids catalyzed the addition of beta-ketoesters to cyclic diene. Lactonization occurs in situ to afford fused bicyclic lactones directly. The catalysis provides an expedient route to bicylic lactones via a zip-process.
authors.affiliation: Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada.
authors.forename: Rene-Viet
authors.initials: RV
authors.lastname: Nguyen
authors.forename: Chao-Jun
authors.initials: CJ
authors.lastname: Li