A Microwave-Promoted/Assisted Method for Rapid Preparation of Biaryl Seven-membered Lactones

Background: Biaryl seven-membered lactones (BSLs), the target compounds are a class of bioactive compounds with anti-arrhythmic activity, which also serve as a starting material or structural units for chemical synthesis. Keywords: BSLs, carbene salt, lactones, N-heterocyclic carbine, microwave, umpolung reaction.