13132-42-8Relevant articles and documents
Colomer,Corriu
, p. 159,166 (1977)
Iron-catalyzed chlorination of silanes
Savela, Risto,Zawartka, Wojciech,Leino, Reko
experimental part, p. 3199 - 3206 (2012/06/04)
A simple and highly efficient iron-catalyzed method for the chlorination of silanes has been developed. By use of 0.5-2% of the Fe(III)-based catalyst FeCl3 or Fe(acac)3 in the presence of 1-1.5 equiv of acetyl chloride as the chlorine donor, a large number of silanes, alkoxysilanes, and silanols were converted to the corresponding chlorosilanes in 50-93% yields. In contrast to earlier reported methods often suffering from expensive catalysts or use of stoichiometric metal salts, hazardous reagents, and reaction conditions, the presently described methodology allows benign reaction conditions and simple workup while using only catalytic amounts of a readily available and economically viable iron catalyst.
THE NATURE AND CONSEQUENCES OF THE INTERACTION OF PHOSPHORYL NUCLEOPHILES WITH A TRIORGANOSILYL CHLORIDE
Chojnowski, J.,Cypryk, M.,Michalski J.,Wozniak, L.
, p. 275 - 282 (2007/10/02)
In order to throw light on the possible role of positively charged tetra-coordinate silicon intermediates in the racemization of α-NpPhMeSiCl (1) induced by uncharged nucleophiles two sets of kinetic studies have been carried out.In the first the rates of two reactions namely racemization of 1 catalysed by (PhO)2(Me3SiO)P=O (2) and transsilylation of 2 with 1, which take place together and are believed to involve the same intermediate were determined; the transsilylation was found to be faster than the racemization, and involved transient formation of an optically active product.In the second the racemization of 1 catalysed by HMPT in various CCl4/CH2Cl2 mixtures was studied; the rate was found to increase markedly with increase in the dielectric constant of the medium.The results of both sets of experiments were consistent with a mechanism involving a silyloxyphosphonium cation intermediate.
