Process for the preparation of benzene derivatives

摘要

p-tert-Butylbenzene derivatives are obtained by a novel process by reacting p-tert-butyltoluene with chlorine at temperatures of about 5-35 DEG C, under the action of energy-rich radiation and/or in the presence of free radical initiators, and, if desired, the p-tert-butylbenzyl chloride obtained, optionally after purification, is converted into p-tert-butylbenzaldehyde by methods known per se. The products obtained by the novel process are known substances, in particular of intermediate character.