Process for continuous production of alkylbenzaldehydes

摘要

Alkylbenzaldehyde is continuously produced in high yield from alkylbenzene by formylation with carbon monoxide in the presence of HF-BF3, where the alkylbenzene, HF-BF3 and carbon monoxide under a carbon monoxide partial pressure of at least 5 kg/cm2 absolute are introduced into the reactor to continuously carry out complexing of the alkylbenzene with HF-BF3 and formylation with the carbon monoxide successively in one and same reactor.