申请人:NIHON NOHYAKU CO., LTD.
公开号:EP0018481A1
公开(公告)日:1980-11-12
α, α, α-trifluoro- o- toluic fluoride is produced in good yield and high purity by reacting anhydrous hydrogen fluoride with 1,1.3,3-tetrach)oro- 1,3-dihydroisobenzofuran or a mixture of a,a,a,-trichloro- o- toluic chloride therewith, the mixture being preferably produced by sufficiently photo- chlorinating o-toluic chloride in mild conditions.
α,α,α-三氟邻甲苯氟化物是通过无水氟化氢与 1,1.3,3-四氯-1,3-二氢异苯并呋喃或 a,a,a,a,-三氯-邻甲苯氯化物的混合物反应制得的,收率高且纯度高。