| 20090240083 | Preparation Method of 2, 6-Dichlor-4-Trifluoromethyl Aniline - This invention is involved with a preparation method of 2,6-dichlor-4-trifluoromethyl aniline. With this process, 4-chlorotrifluoromethyl benzene is used as the starting material and subjected to halogenation reaction and ammoniation reaction and through separation of reaction products the desired 2,6-dichlor-4-trifluoromethyl aniline is obtained. In addition, ammonia is recovered from the surplus ammonia water in ammoniation reaction. This applied invention in characterized by simple process, cheap and easy-available raw materials, high reaction yield and friendly environment. | 09-24-2009 |
