反应详情

A solution of 164.7 g 4-benzyloxybenzoic acid obtained in step (a) and 80 ml of thionyl chloride in 750 ml of trichloroethylene was refluxed with stirring for 3 hrs. The crystalline residue obtained after evaporation was recrystallized from petroleum ether b.p. 80°-110° C.

1. customThe crystalline residue obtained
2. customafter evaporation
3. customwas recrystallized from petroleum ether b.p. 80°-110° C.