How is 1-(4-Chlorophenyl)cyclopropanecarbonyl chloride (CAS: 78682-33-4) typically synthesized?

1-(4-Chlorophenyl)cyclopropanecarbonyl chloride is typically synthesized via the reaction of 4-chlorophenylacetic acid with thionyl chloride. This method involves the gradual addition of thionyl chloride to a solution of 4-chlorophenylacetic acid in an inert solvent like toluene, followed by distillation to remove excess thionyl chloride. The process yields a high yield of the title compound, which is purified by recrystallization.