Diphenyldichloromethane


Diphenyldichloromethane is an organic compound with the formula 2CCl2. It is a colorless solid that is used as a precursor to other organic compounds.

Synthesis

It is prepared from carbon tetrachloride and anhydrous aluminium chloride as catalyst in a double Friedel-Crafts alkylation of benzene. Alternatively,
benzophenone is treated with phosphorus pentachloride:

Reactions

It undergoes hydrolysis to benzophenone.
It is used in the synthesis of tetraphenylethylene,
diphenylmethane imine hydrochloride and benzoic anhydride.