CAS: 13683-41-5; (1-Bromovinyl)Trimethylsilane

上下游产品

CAS号754-05-2 三甲基硅乙烯 | CAS号18146-08-2 1,2-二溴乙基三甲基硅烷 | CAS号75-77-4 三甲基氯硅烷 | CAS号593-60-2 溴乙烯 | CAS号103-64-0 beta-溴苯乙烯 | CAS号917-64-6 甲基碘化镁 | CAS号18038-34-1 1-bromoethenyl(... | CAS号5654-07-9 Silane,1,1'-eth... | CAS号75-16-1 甲基溴化镁 | CAS号18187-17-2 2-trimethylsily... | CAS号112-41-4 1-十二烯 | CAS号22472-36-2 trimethyl-(3-tr... | CAS号1121-55-7 3-乙烯基吡啶 | CAS号1066-54-2 三甲基硅基乙炔 | CAS号19372-00-0 trimethyl-[(E)-... | CAS号1923-01-9 trimethyl-(1-ph... | CAS号189066-36-2 2-trimethylsily...

乙烯基三甲基硅烷置于溴,二乙胺体系中,化学反应 12.0H,以57%的收率获得(1-溴乙烯基)三甲硅烷
参考文献:天然产物合成中的催化不对称克莱森重排:对(-)-Xeniolide F的合成研究.
标题:天然产物合成中的催化不对称克莱森重排:对(-)-Xeniolide F的合成研究.
摘要:[化学反应:见正文].已开发出一种高度取代和官能化的α-烷氧基羰基取代的烯丙基乙烯基醚的催化不对称克莱森重排(cac),可用于获得先进的结构单元,用于预计的全合成(-)-二烯内酯f(一种对映体的对映体). Xenicane Diterpene分离自xenia属的珊瑚.
Doi:10.1021/ol052462T

专利信息

专利号:US-11713329-B2
优先权日:2018-12-10
标 题 :Intermediates useful in the preparation of halichondrin compounds and methods for preparing the same
发明人：XU WEIPING
权利人:BEIJING TIENYI LUFU PHARMATECH CO LTD
摘要:The invention relates to intermediates useful in the preparation of halichondrin compounds, methods for preparing the same and use thereof, such as halichondrins, eribulin, or their analogs. The intermediates, the methods and use thereof are used for the synthesis of the C20-C26 fragment of halichondrin compounds. The raw materials in the synthetic route of the invention are cheap and easily obtained, the sources and the qualities of the raw materials are reliable. The choice of the methods useful in the synthesis of chiral central structures are based on the structural characteristics of the reactants, thus effectively improving the synthesis efficiency, reducing the difficulties and risks of product quality control, and avoiding the use of highly toxic and expensive organotin catalysts to significantly decrease costs and improve environmental friendliness.

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:EP-0037973-B1
优先权日:1980-04-12
标题:Process for the synthesis of estrone or estrone derivatives

专利号:CN-112159424-A
优先权日:2020-09-28
标题 :Synthesis of trimethylsilylacetylene

专利号:EP-0037973-A1
优先权日:1980-04-12
标 题:Process for the synthesis of estrone or estrone derivatives

专利号:US-4357278-A
优先权日:1980-04-12
标 题 :Process for synthesizing estrone or estrone derivatives
发明人：QUINKERT GERHARD; WEBER WOLF-DIETRICH; SCHWARTZ ULRICH
权利人:HOECHST AG
摘要:What are disclosed are a multi-step synthesis for the preparation of 9(11)-dehydroestrone 3-methyl ether from 2-methyl,4-methoxy benzaldehyde; 1-(4-methoxy-2-methyl-(phenyl)-3-(1-methyl-2-oxo-5-t-vinyl-cyclopent-r-yl)-propane-1-one, an intermediate in said synthesis; and a method for the preparation of 3-vinylcyclopentanone from 2-vinylcyclopropane-1,1-dicarboxylic acid.