反应详情

A solution of 300 g (1.63 mol) of cyanuric chloride in 1 liter THF and 0.24 liter diglyme was cooled to 0° C. and 81.6 mL (3.36 mol) of liquid ammonia added dropwise over 90 min. keeping the temperature between 10°-15°. The mixture was stirred for one hour at -10° to 0° and then allowed to warm to ambient temperature over one hour. The resulting suspension was filtered, the solid washed with THF, the filtrate reduced to 1/2 its original volume, and poured over 1 liter of ice water to give a white solid which was collected, washed with water, and dried in vacuo to give 244.3 g of 2-amino-4,6-dichloro-1,3,5-triazine with m.p. 221°-223.5° (dec).

1. custombetween 10°-15°
2. filtrationThe resulting suspension was filtered
3. washthe solid washed with THF
4. additionpoured over 1 liter of ice water
5. customto give a white solid which
6. customwas collected
7. washwashed with water
8. customdried in vacuo