Pd-Catalyzed Threefold Arylation of Baylis-Hillman Bromides and Acetates with Triarylbismuth Reagents

Functionalized alkyl 2‐benzylacrylates and 2‐benzylacrylonitriles were synthesized by means of atom‐economic cross‐couplings of Baylis–Hillman bromides or acetates with BiAr3 under palladium‐catalyzed conditions. These reactions, involving threefold aryl couplings using BiAr3 reagents with bromides and acetates, are fast and are completed in 1–2 h with high product yields. Functionalized alkyl 2‐benzylacrylates and 2‐benzylacrylonitriles were synthesized by cross‐coupling of Baylis–Hillman bromides or acetates with BiAr3 under palladium‐catalyzed conditions. These reactions involve threefold aryl couplings using BiAr3 reagents with bromides and acetates, are fast, and provide high product yields.