反应详情

A mixture of 2.5 g. of 2-hydrazino-5-phenylpyrimidine and 25 ml. of triethyl orthoformate is heated for 16 hours under reflux. The material that separates is collected and crystallized from ethanol to give 1.5 g. of the product of the Example, m.p. 231° C.

1. additionA mixture of 2.5 g
2. temperatureunder reflux
3. customThe material that separates is collected
4. customcrystallized from ethanol
5. customto give 1.5 g