Process for the preparation of 2,6-dichloropyridine and the use of bis(trichloromethyl)sulphone in this process.

摘要

The invention relates to a process for the preparation of chlorinated pyridine derivatives by a chlorination reaction of the corresponding pyridinic compounds with molecular chlorine, carried out in vapour phase by means of bis(trichloromethyl) sulphone as radical initiator. The chlorinated pyridine derivatives which are obtained, such as 2,6-dichloropyridine, can be employed as chemical intermediates.