CAS: 3144-74-9; Chloromethyl(Dimethyl)Silicon

上下游产品

Chloro(chloromethyl)dimethylsilaneJodmethyl-dimethyl-silan γ-Hydroxypropyl-chlormethyl-dimethyl-silan (γ-Trimethylsiloxypropyl)-chlormethyl-dimethyl-silan 4-(chloromethyldimethylsilanyl)butan-1-ol

📜氯甲基二甲基氯硅烷置于lithium Aluminium Tetrahydride体系中,用 乙醚 用作溶剂,化学反应生成氯甲基(二甲基)硅烷
参考文献:15族元素的环状硅烷化洋葱离子
标题:15族元素的环状硅烷化洋葱离子
摘要:通过瞬态硅离子ii的分子内环化反应合成了第15组元素i的五元和六元环硅烷基化的鎓离子.通过使用三苯甲基阳离子作为氢化物受体的硅烷iii的氢化物转移反应制备硅离子ii.发现通过这种方法不能获得较小的环系统.在这些情况下,三苯甲基phosph离子iv被分离了.阳离子i和iv以四氟化五氟苯基硼酸盐的形式分离,并通过多核NMR光谱进行表征,在两种情况下通过x射线衍射分析进行表征.环鎓离子i显示出与等电子分子内的硼烷/膦受阻的路易斯对(flp)相似的反应性.D05在m05-2X水平上的计算结果表明,新形成的si-e键的强度是i [b(c 6 F 5)4 ]对分子氢惰性的主要原因.
Doi:10.1021/ic502968Z

专利信息

专利号:US-11767388-B1
优先权日:2019-09-18
标 题 :Silicon-functionalized rubber
发明人：ENSIGN SETH CODY; VIELHABER MARGARET FLOOK; JOHNGRASS JENA LYNN; MA LIQING
权利人:GOODYEAR TIRE & RUBBER
摘要:The compatibility between silica fillers and synthetic rubbers which are synthesized utilizing lanthanide-based catalyst systems, such as neodymium catalyst systems can be improved by terminating the polymerization with a vinyl silane terminating agent. In doing so the vinyl silane is allowed to react with the polymer chain ends of the neodymium rubber to functionalize the chain ends of the polymer chains with silicon containing groups. This results in the rubber having better characteristics for utilization in tire rubber formulations, such a tire tread formulations, that exhibit improved wear characteristics and lower rolling resistance. The process for the synthesis of such functionalized polydiene rubber comprises (1) polymerizing a diene monomer in the presence of a lanthanide-based catalyst system, and (2) terminating the polymerization with a vinyl silane terminator. The functionalized polydiene rubber composition made by this method is comprised of a polydiene rubber which is functionalized at its chain ends with a silicon containing group.

专利号:WO-2015075693-A1
优先权日:2013-11-25
标题 :Process for the synthesis of (11 beta.17alpha)-17-acetoxy-1 1 -methyl-19-norpregn-4-en-3.20-dione