title: Sequential rhodium-, silver-, and gold-catalyzed synthesis of fused dihydrofurans.
abstract: A triple cascade process was developed for the rapid synthesis of polycyclic benzo-fused dihydrofurans. The first step is a rhodium-catalyzed cyclopropanation of α-aryldiazoketones with alkenes. This is followed by a silver-catalyzed ring expansion to dihydrofurans, which then undergo a gold-catalyzed cyclization to form benzo-fused dihydrofurans.
authors.affiliation: Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA.
authors.forename: Hengbin
authors.initials: H
authors.lastname: Wang
authors.forename: Justin R
authors.initials: JR
authors.lastname: Denton
authors.forename: Huw M L
authors.initials: HM
authors.lastname: Davies