我们在完成氨氧化法制备邻氯苯腈[1]、2,6-二氯苯腈[2]的研究基础上,从价廉易得的2,4-二氯甲苯(以下简称DCT)出发,采用氨氧化法,一步制得2,4-二氯苯腈(以下简称DCBN)。其衍生物,如2,4-二氯苯甲酸、2,4-二氟苯腈、2,4-二氟苯甲酸、2,4-二氟苯甲酰胺及2,4-二氟苯胺等均是重要的有 Based on the research on the preparation of o-chlorobenzonitrile [1] and 2,6-dichlorobenzonitrile [2] by ammoxidation, we start from cheap and readily available 2,4-dichlorotoluene (hereinafter referred to as DCT) , Using ammonia oxidation, one-step preparation of 2,4-dichlorobenzonitrile (hereinafter referred to as DCBN). Derivatives thereof such as 2,4-dichlorobenzoic acid, 2,4-difluorobenzonitrile, 2,4-difluorobenzoic acid, 2,4-difluorobenzamide and 2,4-difluoroaniline All are important