[EN] PROCESS FOR THE STEPWISE SYNTHESIS OF SILAHYDROCARBONS [FR] PROCÉDÉ DE SYNTHÈSE SÉQUENTIELLE DE SILAHYDROCARBURES
摘要:
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。
Selective mono- and di-allylation and allenylation of chlorosilanes using indium
作者:Zhifang Li、Chenjun Yang、Hongfang Zheng、Huayu Qiu、Guoqiao Lai
DOI:10.1016/j.jorganchem.2008.08.028
日期:2008.12
Allyl and allenyl groups have been introduced into silicon systems by the allylation and allenylation of chlorosilanes using allylbromide or propargyl bromide with indium. The allylation of chlorosilanes afforded a variety of aryl, aralkyl, and alkenyl substituted allylsilanes. By applying this method, the reactions of 1-bromo-3-methylbut-2-ene, 3-bromo-2-methylprop-1-ene and 3-bromobut-1-ene with
Homolytic isomerisation of 1,1,1-trichloro-2-bromopropene
作者:A.N. Nesmeyanov、R.Kh. Freidlina、V.N. Kost
DOI:10.1016/0040-4020(57)88045-4
日期:1957.1
(1) 1,1,1-trichloro-2-bromopropene has been shown to isomerise homolytically when exposed to ultra-violet light to form 1,1,2-trichloro-3-bromopropene and heterolytically under the action of antimony pentachloride to yield 1,1,3-trichloro-2-bromopropene.
Quantitative substituent effects in the Grignard reaction with silanes
作者:Oleg Golubev、Dmitri Panov、Anu Ploom、Ants Tuulmets、Binh T. Nguyen
DOI:10.1016/j.jorganchem.2007.05.009
日期:2007.8
the resonance effect of substituents at least in nucleophilic displacement reactions at the silicon center. An attempt to calculate the steric constants for polarsubstituents was made. It appeared that the inductive constants σ∗ derived from the carbon chemistry are not applicable to the silicon chemistry. New scales of parameters for description of polar and steric effects in the organosilicon chemistry
Organosilicon compounds. Part XXXVII. Optical resolution of p-(ethylmethylphenylsilyl)benzoic acid
作者:C. Eaborn、C. G. Pitt
DOI:10.1039/j39660001524
日期:——
p-(Ethylmethylphenylsilyl)benzoicacid, m. p. 99·5°, was prepared, and resolved by fractional crystallisation of its (–)-quinine salt from ethanol. The least soluble diastereoisomer yielded the (+)-acid, m. p. 99·5°, [α]D20+ 2·75°(c 2·8 in benzene), and from the mother-liquors was obtained the optically impure (–)-acid, m. p. 99·5°, [α]D20–1·65°(c 3·2 in benzene). No racemisation occurred when the
制备对-(乙基甲基苯基甲硅烷基)苯甲酸,熔点99·5°,并通过从乙醇中分步结晶其(-)-奎宁盐来拆分。溶解度最低的非对映异构体产生(+)-酸,mp 99·5°,[α] D 20 + 2·75°(苯中c 2·8),从母液中获得光学不纯的(- )-酸,mp 99·5°,[α] D 20 –1·65°(c 3·2在苯中)。当将(+)-酸在100°的液体中保持6小时或在室温下的甲醇氢氧化钾水溶液中保持25小时时,未发生外消旋作用。