silica sulfuric acid in acetonitrile 0.0166667 h; Microwave irradiation;

tris(dibenzylideneacetone)dipalladium (0); caesium carbonate; N-[2'-(dicyclohexylphosphino)-1,1'-biphenyl-2-yl]-N,N-dimethylamine in tetrahydrofuran T=80°C; Arylation; 20 h;