[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。
Fine Tuning of Solid-State Properties of Septithiophenes by Tailoring the Substituents
作者:Andreas Kreyes、Stefan Ellinger、Katharina Landfester、Matthieu Defaux、Dimitri A. Ivanov、Andreas Elschner、Timo Meyer-Friedrichsen、Ulrich Ziener
DOI:10.1021/cm903444n
日期:2010.3.23
A series of five α,ω-substituted septithiophenes, which differ in the geometry of the peripheral branched alkyl substitutents, is presented. The position of the branching point has a substantial effect on the solubility and melting points of the oligomers. In contrast, organic field-effect transistors (OFETs) that have been prepared from those materials via vapor deposition show all mobilities in the
提出了一系列五个α,ω-取代的噻吩并在外围分支的烷基取代基的几何形状上不同。支化点的位置对低聚物的溶解度和熔点具有实质性影响。相反,由这些材料通过气相沉积制备的有机场效应晶体管(OFET)的所有迁移率都在相同的范围内(0.18-0.018 cm 2 V -1 s -1)。迁移率在分子结构上的相对不敏感性归因于如下事实:如依赖温度的X射线衍射所揭示的,在室温下,固态条件下所有Septithiophenes都形成近晶状结构。此外,五个低聚物中的四个表现出热致液晶近晶C相。噻吩核之间的强相互作用被认为是这些结构特征的驱动力。因此,调整外围取代基使得可以在固态条件下微调热和溶解性特性,并且在一定程度上微调其有序性。有序和电性能主要由低聚噻吩核的长度决定。
Electrochemical method for the production of organofunctional silanes
申请人:Kammel Thomas
公开号:US20050234255A1
公开(公告)日:2005-10-20
Organofunctional silanes are prepared in high yield by electrochemically reacting a silane bearing a halo or alkoxy group with a hydrocarbon bearing a halo or alkoxy group in an undivided electrolysis cell with no or minimal complexing agent present.
New aspects of platinum-catalyzed hydrosilylation of disilylethynes
作者:Toshio Suzuki、Peter Y. Lo
DOI:10.1016/0022-328x(90)80152-p
日期:1990.7
The platinum-catalyzed hydrosilylations of bis(trimethylsilyl)ethyne and 1-trimethylsilylethynyl-1,1,3,3,5,5,7,7,7-nonamethyltetrasiloxane at 130–150°C were investigated using high molecular weight organosilicon hydrides. In addition to the expected adducts, significant amount of unexpected disilylethynes and trisilylethenes were produced. It is suggested that the reaction sequence involves elimination
Rhodium-catalyzed transsilylation reactions between bis(trimethylsilyl)ethyne and hexyldimethylsilane
作者:Toshio Suzuki、Itaru Mita
DOI:10.1016/0022-328x(91)86329-o
日期:1991.8
Bis(trimethylsilyl)ethyne and hexyldimethylsilane undergo transsilylationreactions in the presence of Wilkinson's catalyst to give 1-hexyldimethylsilyl-2-trimethylsilylethyne and bis(hexyldimethylsilyl)ethyne. The reaction is faster in air than in argon but oxidation of the silane takes place which significantly reduces the yield.
Introducing the Catalytic Amination of Silanes via Nitrene Insertion
作者:Anabel M. Rodríguez、Jorge Pérez-Ruíz、Francisco Molina、Ana Poveda、Raúl Pérez-Soto、Feliu Maseras、M. Mar Díaz-Requejo、Pedro J. Pérez
DOI:10.1021/jacs.2c03739
日期:2022.6.15
The direct functionalization of Si–H bonds by the nitrene insertion methodology is described. A copper(I) complex bearing a trispyrazolylborate ligand catalyzes the transfer of a nitrene group from PhI═NTs to the Si–H bond of silanes, disilanes, and siloxanes, leading to the exclusive formation of Si–NH moieties in the first example of this transformation. The process tolerates other functionalities