反应详情

To a solution of 1.94 g. of 1-(6-methoxypyrazinyl)piperazine in 25 ml. of anhydrous ether is added dropwise a solution of 0.87 g. of ethylisothiocyanate in 25 ml. of anhydrous ether. The mixture is stirred 30 minutes and the solid collected and recrystallized from 80% ethanol, giving 2.27 g. of the desired product as white crystals, m.p. 120°-122° C.

1. customthe solid collected
2. customrecrystallized from 80% ethanol
3. customgiving 2.27 g