Patent ID: 6313337
Filing Date: 2001-11-06
Classification: C07C

Abstract:
A method of making a mixture of a benzoyl halide and a benzal halide comprising(A) in a reactor forming a reaction mixture of(1) a benzotrihalide having the general formula ##STR4##where each A is independently selected from halogen, CF.sub.3, R, or OR, each X is independently selected from Cl and Br, and m is 0 to 3;(2) a benzaldehyde having the general formula ##STR5##where each B is independently selected from halogen CF.sub.3, or R, R is alkyl from C.sub.1 to C.sub.10 or aryl from C.sub.6 to C.sub.12, and n is 0 to 2;(3) at least about 10 ppm of a catalyst selected from the group consisting of zinc salts and copper salts; and(4) an optional solvent, whereby said benzotrihalide reacts with said benzaldehyde to form said benzoyl halide and said benzal halide; and(B) separating said benzoyl halide.