PROCESSES FOR PRODUCING CYANOPHENYL DERIVATIVES

摘要

A process for producing a cyanobenzaldehyde compound which comprises using an oxidizing agent to convert the aminomethyl group of a cyanobenzylamine compound to an aldehyde group without impairing the cyano group; a process for producing a cyanobenzoyl halide compound which comprises converting the aldehyde group of a cyanobenzaldehyde compound to an acid halide group without impairing the cyano group; and a process for producing a cyanobenzoic acid compound which comprises reacting a cyanobenzaldehyde compound with a hypohalogenous acid. The cyanophenyl derivatives, useful as intermediates for medicines, agricultural chemicals, liquid crystals, functional high-molecular monomers, etc., can be efficiently produced from easily available materials.