tributyl-amine; ammonium formate; 1-n-butyl-3-methylimidazolium tetrafluoroborate; palladium dichloride T=60°C; Heck reaction; 24 h;

tetrabutylammomium bromide; potassium carbonate; palladium diacetate in N,N-dimethyl-formamide T=100°C; 72 h; Further byproducts given;