CAS: 1438-79-5; 1,1,1,3,3-Pentamethyl-3-Vinyldisiloxane

上下游产品

(1-hydrohexafluoroisobutenyloxy)trimethylsilane Chlorodimethylvinylsilane chloro-trimethyl-silane1,2-bis(1,1-3,3,3-pentamethyldisiloxanyl)ethane 1,1,1,3,3,5,5-heptamethyl-5-phenyl-trisiloxane (E)-[1-(4-bromophenyl)-2-(1,1,3,3,3-pentamethyldisiloxy)]ethene

📜三甲基乙氧基硅烷,(2-Methylallyl)-Dimethylvinylsilane置于水,Scandium Tris(Trifluoromethanesulfonate)体系中,用 乙腈 用作溶剂,化学反应 1.0H,以85%的收率获得乙烯基五甲基二硅烷
参考文献:一种合成不对称硅氧烷的高效催化方法
标题:一种合成不对称硅氧烷的高效催化方法
摘要:探索了扩大硅氧烷键形成催化方法种类的潜力.在三氟甲磺酸钪 (III) 存在下,烷氧基硅烷与甲基烯丙基硅烷反应生成二硅氧烷和异丁烯.该反应通过烷氧基硅烷与烯丙基硅烷(通过硅烷醇中间体)在温和条件下的一锅水解/o-甲硅烷基化进行.不饱和硅氧烷产物用作通过催化氢化硅烷化反应进一步官能化的底物.
Doi:10.1002/ejic.201402904

专利信息

专利号:US-7576169-B2
优先权日:2003-10-23
标 题:Facile synthesis of polyhedral silsesquioxane anions and use thereof
发明人：HASEGAWA ISAO; LAINE RICHARD M; ASUNCION MICHAEL Z; TAKAMURA NORIHIRO
权利人:UNIV MICHIGAN
摘要:Polyhedral silsesquioxane anions are economically prepared by reaction of a silica source derived from combusted organic material with a quaternary ammonium hydroxide compound. Reaction of the resulting anions with chlorosilanes may be effected in near stoichiometric fashion in organic solvent containing reactive quantities of organic acids such as formic acid. The functional groups on the resulting functionalized silsesquioxanes may be substituted for other functional groups by reaction with di- or polysiloxanes in the presence of a synthetic ion exchange resin.

专利号:WO-2024216794-A1
优先权日:2023-04-17
标 题:Implantable material and synthesis method therefor and prosthetic heart valve
发明人：WANG LICHAO; WEI XING; KUANG DAJUN
权利人:VENUS MEDTECH HANGZHOU INC
摘要:The present application discloses an implantable material and a synthesis method therefor and a prosthetic heart valve. The implantable material uses polyurethane, the molecular chain structure of polyurethane comprises a soft segment and a hard segment, and a functional branched chain is grafted onto the hard segment; the solubility parameter of the functional branched chain is 6-8. According to the present application, by introducing the functional branched chain into the hard segment, the compatibility between the hard segment and the soft segment is improved and the stress transfer points between the hard segment and the soft segment are increased, so that the prepared implantable polymer material has excellent mechanical properties.

专利号:US-2005142054-A1
优先权日:2003-10-23
标 题 :Facile synthesis of polyhedral silsesquioxane anions and use thereof

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:US-9893302-B2
优先权日:2013-03-06
标 题:Heterocyclic fluorescent dyes and method of production thereof
发明人：GRYKO DANIEL T; GRZYBOWSKI MAREK
权利人:BASF SE
摘要:The invention relates to novel compounds of formula (III) that can be used as heterocyclic dyes of unique structure and properties. These compounds can be obtained in a three-step synthesis from simple substrates. The compounds according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the compounds according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes.

专利号:WO-2005039744-A2
优先权日:2003-10-23
标 题 :Facile synthesis of polyhedral silsesquioxane anions and use thereof