Dichlorofluorobenzene is prepared by diazotizating of 2,4-dichloro aniline and substituting of 2,4-dichloro diazo benzene with fluorinion.

在此由2,4-二氯苯胺经过重氮化、换制得2,4-二氯氟苯的生产,产品纯度达到99。