申请人:THE DOW CHEMICAL COMPANY
公开号:EP0214722A1
公开(公告)日:1987-03-18
Novel ring-brominated derivatives of tetraalkyl dihydroxy diaromatic compounds, e.g. 4,4'-(1,2-ethanediyl)bis(3,5-dibromo-2,6-dimethyl-phenol) are prepared by contacting a tetraalkyl dihydroxydiaromatic compounds with a brominating agent in the presence of a reaction medium.
Novel ring-brominated derivatives of the diepoxides of tetraalkyl dihydroxydiaromatic compounds, e.g., the diglycidyl ether of 3,5-dibromo-4-(2-(2-bromo-4-hydroxy-3,5-dimethylphenyl)-ethyl)-2,6-dimethylphenol are also prepared by contacting the aforementioned ring-brominated derivatives of tetraalkyl dihydroxydiaromatic compounds with haloalkylene oxide under reaction conditions.
四烷基二羟基二芳香族化合物的新型环溴化衍生物,如 4,4'-(1,2-乙烷二基)双(3,5-二溴-2,6-二甲基苯酚),是在反应介质存在下,通过四烷基二羟基二芳香族化合物与溴化剂接触而制备的。
四烷基二羟基二芳香族化合物的环溴化衍生物,如 3,5-二溴-4-(2-(2-溴-4-羟基-3,5-二甲基苯基)-乙基)-2,6-二甲基苯酚的二缩水甘油醚,也是通过上述四烷基二羟基二芳香族化合物的环溴化衍生物与卤代环氧烷在反应条件下接触而制备的。