Preparation of o-chloromethylbenzoyl chlorides

Details Preparation of o-chloromethylbenzoyl chlorides Preparation of o-chloromethylbenzoyl chlorides

C - Chemistry, Metallurgy

07

C

C07C 51/58 (2006.01) C07C 63/70 (2006.01)

Patent

CA 2146305

A process for preparing o-chloromethylbenzoyl chlorides of the formula I (see formula I) where m is 0 or an integer from 1 to 4 and X is halogen or C-organic radicals, entails reacting a corresponding lactone of the formula II (see formula II) with thionyl chloride in the presence of a catalyst.

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