tris(dibenzylideneacetone)dipalladium (0); 1,3,4,6,7,8-hexahydro-1-methyl-2H-pyrimido{1,2-a}pyrimidine; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in toluene T=150°C; 0.5 h; microwave irradiation;

tris(dibenzylideneacetone)dipalladium (0); 1,8-diazabicyclo[5.4.0]undec-7-ene; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in toluene T=175°C; 0.25 h; microwave irradiation;