申请人:OCCIDENTAL CHEMICAL CORPORATION
公开号:EP0509241A2
公开(公告)日:1992-10-21
A process for the preparation of 1,1'-oxy-bis(3-trifluoromethyl-4-nitrobenzene) which comprises reacting a compound of the formula
where X is F, Cl, Br or I; with an inorganic base selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, and alkali metal bicarbonates, in the presence of a catalytic quantity of a benzoate catalyst. In addition, benzoate esters of 4-nitro-3-(trifluoromethyl)phenol may be isolated.
一种制备 1,1'-氧基双(3-三氟甲基-4-硝基苯)的工艺,其包括使一种式如 下的化合物发生反应
其中 X 为 F、Cl、Br 或 I;与选自碱金属氢氧化物、碱金属碳酸盐和碱金属碳酸氢盐组成的组的无机碱在催化量的苯甲酸酯催化剂存在下反应。此外,还可分离出 4-硝基-3-(三氟甲基)苯酚的苯甲酸酯。