反应详情

2-Amino-4-chloro-6-hydroxypyrimidine monohydrate (5.0 g) was stirred with 30% dimethylamine in ethanol (180 mL) at 100° C. in an autoclave for 16 h. The crystalline product was filtered, washed with water, acetone, ether and dried in vacuo to afford 2-amino-4-dimethylamino-6-hydroxypyrimidine, not melting under 300° C. Yield, 4.3 g (81%). For C6H10N4O (154.17) calculated 46.34% C, 6.54% H, 36.34% N; found 46.38% C, 6.65% H, 36.68% N. 1H-NMR (CD3SOCD3): 2.89 s, 6H (N—CH3); 4.51 s, 1H (H-5); 6.18 brs, 2H (NH2); 9.75 brs, 1H (OH).

1. filtrationThe crystalline product was filtered
2. washwashed with water, acetone, ether
3. customdried in vacuo