HRID544632

反应详情

EQUATION

反应方程式

HRID 544632 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A 0.6 g. amount of sodium metal is dissolved in 100 ml. of absolute ethanol, then 14.76 g. of m-chlorophenylhydrazine is added followed in 5 minutes by 12.92 g. of cinnamonitrile. The reaction mixture is refluxed for 6 hours, then cooled in an ice-bath. The precipitate formed is collected by filtration, then is dissolved in dichloromethane. This solution is passed through a short column of a hydrous magnesium silicate. The effluent is heated to reflux on a steam bath and hexane is added until a precipitate occurs. The product is collected, then is recrystallized from dichloromethane-hexane to give 7.55 g. of the product of the Example as salmon colored needles, m.p. 164°-165° C.

WORKUP

后处理

  1. temperatureThe reaction mixture is refluxed for 6 hours
  2. temperaturecooled in an ice-bath
  3. customThe precipitate formed
  4. filtrationis collected by filtration
  5. dissolutionis dissolved in dichloromethane
  6. temperatureThe effluent is heated
  7. temperatureto reflux on a steam bath
  8. additionhexane is added until a precipitate
  9. customThe product is collected
  10. customis recrystallized from dichloromethane-hexane
  11. customto give 7.55 g