4-Methylbenzaldehyde → Benzal chloride

Participants

Reaction Steps

JP79125629 (1979) discloses a method for preparing α,α,α′,α′-tetrachloro-p-xylene by reacting 4-methyl benzaldehyde with PCl5, forming an intermediate product 4-methyl, 1-(dichloromethyl)benzene, and conducting a photochlorination reaction. This prior art method has the following reaction formula: The abovementioned reaction is a two-step reaction. Even though the first step reaction has a yield of 96.5%, the second step reaction has a very low yield. The product mixture is very difficult to be purified.

Provenance & Evidence