二苯基硅二醇简单而经济的合成方法

Simple and cheap synthesis method of diphenyl silanediol

用二苯基二氯硅烷（Ph2SiCl2）在氢氧化钠水溶液中直接水解合成二苯基硅二醇[Ph2Si（OH）2],研究了反应条件对产率的影响。结果表明,在氢氧化钠浓度为5%,反应温度0-2℃,反应时间4 h的条件下,二苯基硅二醇的产率为92%,与文献报道值相当。

Diphenyl silanediol[Ph2Si（OH）2] was synthesized from diphenyl dichlorosilane（Ph2SiCl2） and sodium hydroxide by direct hydrolysis method in water solution.The effects of the reaction condition on the yield of diphenyl silanediol were investigated,92% yield（the yield is higher than 90% in the reported literature） was obtained under the optimal reaction condition： the content of sodium hydroxide,5%;the reaction temperature 0～2 ℃ and reaction time 4 h,respectively.