Lewis Base Catalyzed Selective Chlorination of Monosilanes
作者:Alexander G. Sturm、Julia I. Schweizer、Lioba Meyer、Tobias Santowski、Norbert Auner、Max C. Holthausen
DOI:10.1002/chem.201803921
日期:2018.12.3
A preparatively facile, highly selective synthesis of bifunctional monosilanes R2SiHCl, RSiHCl2 and RSiH2Cl is reported. By chlorination of R2SiH2 and RSiH3 with concentrated HCl/ether solutions, the stepwise introduction of Si−Cl bonds is readily controlled by temperature and reaction time for a broad range of substrates. In a combined experimental and computational study, we establish a new mode
[EN] PROCESS FOR THE STEPWISE SYNTHESIS OF SILAHYDROCARBONS<br/>[FR] PROCÉDÉ DE SYNTHÈSE SÉQUENTIELLE DE SILAHYDROCARBURES
申请人:MOMENTIVE PERFORMANCE MAT INC
公开号:WO2021243137A1
公开(公告)日:2021-12-02
The invention relates to a process for the stepwise synthesis of silahydrocarbons bearing up to four different organyl substituents at the silicon atom, wherein the process includes at least one step a) of producing a bifunctional hydridochlorosilane by a redistribution reaction, selective chlorination of hydridosilanes with an ether/HCI reagent, or by selective chlorination of hydridosilanes with SiCI4, at least one step b) of submitting a bifunctional hydridochloromonosilane to a hydrosilylation reaction, at least one step c) of hydrogenation of a chloromonosilane, and a step d) in which a silahydrocarbon compound is obtained in a hydrosilylation reaction.
本发明涉及一种逐步合成在硅原子上带有最多四种不同有机基团取代的硅氢化物的过程,其中该过程包括至少以下步骤:a) 通过重分配反应、使用醚/HCI试剂对氢硅烷进行选择性氯化,或者通过使用四氯化硅对氢硅烷进行选择性氯化来制备双功能氢氯硅烷;至少一个步骤 b) 将双功能氢氯单硅烷进行氢硅化反应;至少一个步骤 c) 对氯代单硅烷进行氢化;以及步骤 d) 在氢硅化反应中获得硅氢化物化合物。
Tris(hydridosilylethyl)boranes: highly reactive synthons for polymeric silicon compounds
作者:Markus Weinmann、Thomas W Kamphowe、Peter Fischer、Fritz Aldinger
DOI:10.1016/s0022-328x(99)00499-4
日期:1999.12
the synthesis of tris(hydridosilylethyl)boranes B[C2H4Si(CH3)nH3−n]3 (C2H4=CHCH3, CH2CH2; n=0, 1, 2; 5a–c) are reported. In the first route, tris(chlorosilylethyl)boranes B[C2H4Si(CH3)nCl3−n]3 (n=0, 1, 2; 3a–c) are reacted with LiAlH4 in diethyl ether solution. Compounds 3a–c are prepared by hydroboration of the respective vinyl chlorosilanes (H2CCH)Si(CH3)nCl3−n (n=0, 1, 2; 1a–c) with borane dimethylsulfide
合成三(氢硅烷基乙基)硼烷B [C 2 H 4 Si(CH 3)n H 3- [ n ] 3(C 2 H 4 = CHCH 3,CH 2 CH 2 ; n = 0,1,2 ; 5a–c)被报告。在第一条路线中,三(氯甲硅烷基乙基)硼烷B [C 2 H 4 Si(CH 3)n Cl 3- [ n ] 3(n = 0,1,2; 3a–c)与LiAlH 4反应在乙醚溶液中。化合物3A-C由相应乙烯基氯硅烷的制备硼氢化(H 2 CCH)的Si(CH 3)ñ氯-3- Ñ(Ñ = 0,1,2; 1A-1C)用甲硼烷二甲基硫醚,BH 3 · S(CH 3)2。氢基乙烯基硅烷的硼氢化(H 2 CCH)的Si(CH 3)ñ ħ 3- Ñ(Ñ = 0,1,2;图6A-C )与BH 3 ·S(CH 3)2代表替代路线,可产生5a–c的高得多的产量。中间体6a-c是从1a-c和LiAlH 4在乙醚溶液中获得的
Infrared and Raman spectra, conformational stability, vibrational assignment and ab initio calculations of methylvinyl silyl chloride
作者:James R. Durig、Seung Won Hur、Gamil A. Guirgis
DOI:10.1016/s1386-1425(02)00379-7
日期:2003.9
The infrared spectra (3200-50 cm(-1)) of gaseous and solid and Raman spectra (3200-10 cm(-1)) of the liquid and solid methylvinyl silyl chloride, CH(2)=CHSiH(CH(3))Cl, and the Si-d isotopomer have been recorded. The three expected stable conformers (the three different groups eclipsing the double bond) have been identified in the fluid phase, but it was not possible to obtain an annealed solid with