| 摘要 |
<p>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.</p><p>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. </p> |
