tris(dibenzylideneacetone)dipalladium (0); caesium carbonate; N-[2'-(dicyclohexylphosphino)-1,1'-biphenyl-2-yl]-N,N-dimethylamine in tetrahydrofuran T=80°C; Arylation; 8 h;

tris(dibenzylideneacetone)dipalladium (0); caesium carbonate; N-[2'-(dicyclohexylphosphino)-1,1'-biphenyl-2-yl]-N,N-dimethylamine in tetrahydrofuran T=80°C; Arylation; Heck reaction; 14 h;

phosphomolybdic acid in acetonitrile T=20°C; 1 h;

hydrogenchloride in methanol