【摘要】 以季戊四醇为原料合成了一种新型树状大分子核———醚 -四硅烷 ,可用于树状大分子构筑 .通过季戊四醇 ( 1)与溴丙烯的醚化反应得到四烯丙基醚 2 ,然后在Pt催化作用下 ,2与硅氯仿通过硅氢化反应生成醚 -四 (三氯硅烷 ) 3 (可直接与多种官能团反应生成树状大分子 ) ,3经过LiAlH4还原后得到目标产物醚 -四硅烷 4.通过IR ,1HNMR ,13 CNMR对中间体和目标产物的结构进行了表征 ,并对产物的结构进行了讨论和确认更多还原

【Abstract】 A novel ethereal tetrasilane based on pentaerythritol was synthesized. Etherification of pentaerythritol (1) with allyl bromide giving tetraallyl ether 2, followed by Pt-catdlyzed hydrosilication with silicochloroform generated tetratrichlorosilane 3 (which could directly react with some functional groups to form dendrimers) and subsequent reduction of 3 with LiAlH 4 provided tetrasilane 4, which could be used in hydrosilication with unsaturated olifens and their derivatives to form carbosilane dendrimers.更多还原