tris-(dibenzylideneacetone)dipalladium(0); lithium hydroxide hydrate; 2-dicyclohexylphosphino-1,1'-biphenyl in 1,2-dichloro-benzene T=120°C; 12 h; Inert atmosphere;

tri-o-tolyl phosphite; palladium diacetate in toluene T=100°C; 12 h; Inert atmosphere;

tri-o-tolyl phosphite; palladium diacetate in toluene T=100°C; 12 h; Inert atmosphere;