反应详情

Benzylhydrazine (30 g, 0.0245 mole) was dissolved in 200 ml of isopropanol and cooled to 0°-5° C. Phenyl isothiocyanate (33.1 g, 0.0245 mole) was then added dropwise in 50 ml of petroleum ether. The title compound precipitated from solution during this phase of the operation. After addition, the reaction mixture was stirred at 40°-45° C. for one hour. The title product was filtered off as a white solid, m.p. 121°-3° C., yield 43 g.

1. temperaturecooled to 0°-5° C
2. customThe title compound precipitated from solution during this phase of the operation
3. additionAfter addition
4. filtrationThe title product was filtered off as a white solid, m.p. 121°-3° C., yield 43 g