AN IMPROVED PROCESS FOR THE ELECTROCHEMICAL PREPARATION OF PARA CHLOROVENZALDEHYDE

摘要

An improved process for the preparation of para-chlorobenzaldehyde which comprises oxidizing para chloro toluene using electrochemically generated cerium(IV) methane sulphonate characterized in that electrolysing the said cerium(IV) methane sulphonate in methane sulphonic acid at a current density of 5 - 15 A/dm2 in an undivided cell in a mole ratio of Para-chlorotoluene to cerium (IV) methane sulphonate 1:4 to 1 :5.6 at a temperature of 75 -80°C for a period of 30 to 45 minutes with vigorous stirring to obtain a solution and recovering the para-chlorobenzaldehyde by extraction method.