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); lithium tert-butylate; 2-(dicyclohexylphosphino)-2',4',6'-tri-i-propyl-1,1’-biphenyl in 1,4-dioxane T=110°C; Inert atmosphere;