Reacción #64824

Ecuación de reacción

α-cyanocinnamic acid

thionyl chloride

→

α-cyanocinnamoyl chloride

Disolventes

benzene

Condiciones de reacción

Tratamiento posterior

1. 1
   Otroat ambient temperature
2. 2
   Otrowas elevated to 70° C.
3. 3
   workup.DISTILLATIONBenzene and thionyl chloride were distilled off
4. 4
   Otrothe residue was dried thoroughly under reduced pressure

Procedimiento

100 ml of benzene was added to 17.3 grams of α-cyanocinnamic acid. 12 ml of thionyl chloride was added dropwise slowly thereto at ambient temperature. The temperature was elevated to 70° C. and the heating was continued until foaming ceased. Benzene and thionyl chloride were distilled off and the residue was dried thoroughly under reduced pressure.

Fuente