3-[2-氯-4-(三氟甲基)苯氧基]苯甲酸合成工艺改进

The Improvement on Synthesis of 3-(2-Chloro-α, α, α-trifluoro-p-tolyoxy) benzoic Acid

3-[2-氯-4-(三氟甲基)苯氧基]苯甲酸是一种重要的中间体,由它可以合成三氟羧草醚等多种二苯醚类除草剂。本文概述了3-[2-氯-4-(三氟甲基)苯氧基]苯甲酸的合成改进方法。

3-（2-Chloro-α, α, α-trifluoro-p-tolyoxy） benzoic acid is an important intermediate. Diphenylether herbicides such as acifluorfen can be synthesized from it. The synthesis method and the improvement on technology of 3-（2-chloro-α,α,α-trifluoro-p- tolyoxy） benzoic acid is described in this article.