An efficient new synthetic route to (1-arylvinyl)phosphonates is presented. A wide range of (1-arylvinyl)phosphonates were prepared in good to excellent yields (79–99%) by using a palladium(II) acetate–organophosphine catalyst system. The protocol can be effectively scaled up without deleterious effects. The use of a (1-chlorovinyl)phosphonate as the electrophilic coupling partner was demonstrated for the first time.
Key words
cross-coupling - phosphonates - palladium - catalysis - arylation