title: Ionic liquid, surrogate hydrogen bromide reagent for ring opening of cyclopropyl ketones.
abstract: Ionic liquid reagents created by addition of 1 equiv of either CF3CO2H or CF3SO3H to N-pentylpyridinium bromide exhibit excellent chemical reactivities as surrogate HBr reagents in ring-opening reactions of cyclopropyl ketones as well as of 2,2-difluorocyclopropyl ketones to form the respective 3-bromopropyl or 3-bromo-2,2-difluoropropyl ketones in good to excellent yields.
authors.affiliation: Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA.
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: William R
authors.initials: WR
authors.lastname: Dolbier
authors.forename: Jose
authors.initials: J
authors.lastname: Salazar