1: 5-methyl-2,4(1H,3H)-pyrimidinedione With N,O-bis-(trimethylsilyl)-acetamide in acetonitrile T=20°C; 2: bromo-di-phenylmethane With iodine in acetonitrile Heating;

iodine in 1,2-dichloro-ethane 36 h; Heating;

1: 96 percent / potassium carbonate / dimethylformamide / 20 °C 2: 100 percent / triflic acid / trifluoroacetic acid / 0.5 h / 0 °C View Scheme