Preparation of trifluoromethylphenols and novel trifluoromethylphenyl benzyl ether intermediates
申请人:ELI LILLY AND COMPANY
公开号:EP0004447A2
公开(公告)日:1979-10-03
A process for preparing a trifluoromethylphenol and trifluoromethylphenyl benzyl ether is described. It comprises heating a trifluoromethylhalobenzene with a sodium benzylate to form a trifluoromethylphenyl benzyl ether of the formula
wherein R and R1 when taken individually are C,-C3 alkyl, methoxy or nitro and when taken together and occupying adjacent carbon atoms in the phenyl ring, methylenedioxy, and n and m taken individually are 0 or 1, and optionally hydrogenolysing the trifluoromethylphenyl benzyl ether to give the corresponding ether. The trifluoromethylphenyl benzyl ethers are new compounds.
描述了一种制备三氟甲基苯酚和三氟甲基苯基苄基醚的工艺。该工艺包括将三氟甲基卤代苯与苄酸钠加热,生成三氟甲基苯基苄基醚,其式为
其中 R 和 R1 单独取值时为 C,-C3烷基、甲氧基或硝基,一起取值且在苯环中占相邻碳原子时为亚甲基二氧基,n 和 m 单独取值时为 0 或 1,然后任选将三氟甲基苯基苄基醚氢解,得到相应的醚。三氟甲基苯基苄基醚是新化合物。