4-(2’-氟-4’-氰基苯氧基)苯酚是合成苯氧丙酸类高效除草剂的重要中间体。研究了4-(2’-氟-4’-氰基苯氧基)苯酚合成的新方法。该方法以3,4-二氟苯腈和对羟基苯甲醚为主要原料,首先合成4-(2’-氟-4’-氰基苯氧基)苯甲醚,再经三溴化硼还原得到4-(2’-氟-4’-氰基苯氧基)苯酚。通过红外、核磁及质谱等分析手段对其化学结构进行了鉴定,两步反应总收率为64%,产品纯度95.2%,克服了文献报道的合成方法产量小、收率低的缺点。 4- (2’-fluoro-4’-cyanophenoxy) phenol is an important intermediate for the synthesis of phenoxypropionic acid herbicides. A new method for the synthesis of 4- (2’-fluoro-4’-cyanophenoxy) phenol was studied. The method takes 3,4-difluorobenzonitrile and p-hydroxyanisole as the main raw materials, and firstly synthesizes 4- (2’-fluoro-4’-cyanophenoxy) anisole and then boron tribromide Reduction gives 4- (2’-fluoro-4’-cyanophenoxy) phenol. Its chemical structure was identified by means of IR, NMR and MS. The total yield of the two-step reaction was 64% and the purity of the product was 95.2%, which overcomes the shortcomings of low yield and low yield of the synthesis method reported in the literature.