反应详情

To 34.3 g (0.20 mol) of 6-amino-1-propyl-2,4-(1H,3H)-pyrimidinedione (II), dissolved in 900 ml hot water, was added 45 ml of 5 N HCl and 15 g of NaNO2 (0.22 mol) which was dissolved in water. After cooling the red crystals were filtered off and washed with water. Yield 33.3 g (83%) (III) NMR.

1. temperatureAfter cooling the red crystals
2. filtrationwere filtered off
3. washwashed with water