sodium metal. PCS has a highly crosslinked structure, high ceramic yield and high surface area. Titanium metal ion was attached to the polycarbosilane and its catalytic activity was investigated. The Knoevenagel condensation reaction catalysed by titanium‐incorporated polycarbosilane is reported. The titanium‐incorporated PCS catalysed the reaction well and with a diverse set of substrates the reaction
聚碳
硅烷(PCS)是通过在
钠金属存在下三
氯甲基
硅烷和
三甲氧基乙烯基硅烷的缩聚反应合成的。PCS具有高度交联的结构,高陶瓷产率和高表面积。
钛金属离子附着在聚碳
硅烷上,并对其催化活性进行了研究。据报道,掺
钛聚碳
硅烷催化了Knoevenagel缩合反应。掺
钛的PCS很好地催化了反应,并且在多种底物条件下,反应以良好的收率进行。首次制备了PCS负载的过渡
金属催化剂,并成功用于Knoevenagel缩合反应中。版权所有©2012 John Wiley&Sons,Ltd.