二(4-苯氧基苯基)二甲基硅烷的合成与表征

Synthesis and Characterization of Bis-(4-Phenyleneoxyl Phenyl)Dimethylsilane

以六甲基膦酰胺(HMPA)为溶剂,铜粉作催化剂,用稍过量的对二溴苯和酚钠盐或酚钾盐在185～210℃下反应制得4-溴二苯醚,收率为55%.由4-溴二苯醚制备格氏试剂,与二甲基二氯硅烷反应制得二(4-苯氧基苯基)二甲基硅烷,m.p.:68～69℃.以二甲基二氯硅烷计产率达85%.用IR、1HNMR等分析方法对4-溴二苯醚和二(4-苯氧基苯基)二甲基硅烷进行了表征.

The preparation of bis-(4-phenyleneoxyl phenyl) dimethylsilane was introduced in this paper.Firstly,1,4-dibromobenzene and phenol were used to prepare 4-bromodiphenyl ether(Ⅰ) under 185～210 ℃ in HMPA solvent in the yield over 55%.Scondly, bis-(4-phenyleneoxyl phenyl)dimethylsilane(Ⅱ) was synthesized by using 4-bromodiphenyl ether and dichlorodimethylsilane through Grignard reaction. High yield of this monomer was abtained. The title compound Ⅱ and Ⅰ were analyzed by FT- IR、~1 HNMR .