Use of Silylated Formiates as Hydrosilane Equivalents
申请人:Commissariat a l'Energie Atomique et aux Energies Alternatives
公开号:US20210292345A1
公开(公告)日:2021-09-23
The present invention relates to a method for preparing organic compounds of formula (I) by reaction between a silylated formiate of formula (II) and an organic compound in the presence of a catalyst and optionally of an additive.
The invention also relates to use of the method for preparing organic compounds of formula (I) for the preparation of reagents for fine chemistry and for heavy chemistry, as well as in the production of vitamins, pharmaceutical products, adhesives, acrylic fibres, synthetic leathers, and pesticides.
An efficient method for the dehydrogenative coupling of silanes with alcohols under photocatalysis was developed. The reaction proceeded in the presence of Ru(bpy)3Cl2 (0.5 mol%) under visible light irradiation in acetonitrile at room temperature. The developed methodology was also applicable for the synthesis of silanols using water as a coupling partner.
Metal-free transfer hydrogenation of olefins via dehydrocoupling catalysis
作者:Manuel Pérez、Christopher B. Caputo、Roman Dobrovetsky、Douglas W. Stephan
DOI:10.1073/pnas.1407484111
日期:2014.7.29
species that mimics that of transitionmetalcomplexes. In this report, the Lewis acidic phosphonium salt [(C6F5)3PF][B(C6F5)4] 1 is shown to catalyze the dehydrocoupling of silanes with amines, thiols, phenols, and carboxylic acids to form the Si-E bond (E = N, S, O) with the liberation of H2 (21 examples). This catalysis, when performed in the presence of a series of olefins, yields the concurrent formation
近年来主族化学的一个重大进展是出现了模拟过渡金属配合物的主族物种的反应性。在这份报告中,路易斯酸性鏻盐 [(C6F5)3PF][B( )4] 1 显示出催化硅烷与胺、硫醇、酚和羧酸的脱氢偶联形成 Si-E 键 (E = N, S, O) 释放 H2(21 个例子)。这种催化,当在一系列烯烃的存在下进行时,会同时形成烯烃的脱氢偶联和转移氢化产物(30 个实施例)。这种反应性为烯烃加氢的无金属催化提供了一种策略。实验和密度泛函理论计算提出并支持了这两种催化反应的机制。
Mild synthesis of silyl ethers <i>via</i> potassium carbonate catalyzed reactions between alcohols and hydrosilanes
作者:Nicholas A. DeLucia、Nivedita Das、Aaron K. Vannucci
DOI:10.1039/c8ob00464a
日期:——
A method has been developed for the silanolysis of alcohols using an abundant and non-corrosive base K2CO3 as a catalyst. Reactions between a variety of alcohols and hydrosilanes generate silyl ethers under mild conditions. The use of hydrosilanes leads to the formation of H2 as the only byproduct thus avoiding the formation of stoichiometric strong acids. The mild conditions lead to a wide scope of
已经开发出一种使用大量且无腐蚀性的碱K 2 CO 3作为催化剂进行醇的硅烷化的方法。在温和的条件下,各种醇与氢硅烷之间的反应会生成甲硅烷基醚。使用氢硅烷导致形成H 2作为唯一的副产物,因此避免了化学计量的强酸的形成。温和的条件导致广泛的可能的醇底物和良好的官能团耐受性。在存在反应性CH键的情况下,还可以观察到选择性醇硅烷分解,这使得该方法可广泛用于保护基化学中。
Facile Methods for the Direct Conversions of Aryl Acetates into the Corresponding Methoxymethyl Ethers or Silyl Ethers
作者:Takeshi Oriyama、Kojiro Noda、Satomi Sugawara
DOI:10.1080/00397919908086220
日期:1999.7
Abstract Directconversion of aryl acetates into aryl mefhoxymethyl ethers or aryl trialkylsilyl ethers was readily accomplished by treatment with methoxymethyl bromide or trialkylsilyl trifluoromethanesulfonate, respectively, in the presence of sodium methoxide.