| 摘要 |
alpha , alpha , alpha -trifluoro- o- toluic fluoride is produced in good yield and high purity by reacting anhydrous hydrogen fluoride with 1,1,3,3-tetrachloro- 1,3-dihydroisobenzofuran or a mixture of alpha , alpha , alpha ,-trichloro- o- toluic chloride therewith, the mixture being preferably produced by sufficiently photo-chlorinating o-toluic chloride in mild conditions. |
