76-86-8Relevant articles and documents
Flash Photolysis Study for Halogen Abstraction of Ph3Sn* and Ph3Si* from Alkyl Halides
Ito, Osamu,Hoteiya, Kiyohiko,Watanabe, Akira,Matsuda, Minoru
, p. 962 - 965 (1991)
The reaction rate contants for halogen abstraction of Ph3Sn* and Ph3Si* have been determined by xenon-flash photolysis method.The absolute rate constants for the reactivity of Ph3Sn* with several alkyl halides have been compared with the relative ones; the agreement between the both methods was fairly good.For Ph3Sn*, the rate constant (in unit of mol-1 dm3 s-1) of n-BuCl (5.2*102) was smaller than that of n-BuBr (3.1*106) by a factor of ca. 1/104.With changing the alkyl halides, the rate constants for Ph3Si* and Ph3Sn* varied similarly, although the rate constants for Ph3Si* were larger than those for Ph3Sn* by factors of 50 - 100.The reactivity of alkyl halides increased with a decrease in the bond-dissociation energy of the R-X (X=Cl, Br).
Marr,Webster
, p. 93 (1964)
METHOD FOR PRODUCING ARYLSILANE COMPOUND CONTAINING HALOSILANE COMPOUND AS RAW MATERIAL
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Paragraph 0080-0084, (2020/03/06)
PROBLEM TO BE SOLVED: To provide a method for producing an arylsilane compound with low production cost. SOLUTION: A method for producing an arylsilane compound includes a reaction step for the cross-coupling reaction of a halosilane compound represented by general formula (A-1), (A-2), or (A-3) and an arylboronic acid pinacol ester in the presence of a nickel catalyst, a Lewis acid catalyst, and an organic base (R independently represent an aromatic hydrocarbon group, a heteroaromatic ring group, or a C1-20 hydrocarbon group; X independently represent a halogeno group or a trifluoromethanesulfonyloxy group). SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
Kinetic and Theoretical Investigation of Iron(III)-Catalyzed Silane Chlorination
Savela, Risto,Grnman, Henrik,Sundelin, Heidi,Norrby, Per-Ola,Yu. Murzin, Dmitry,Leino, Reko
, p. 584 - 592 (2016/02/23)
A highly versatile, robust, and efficient methodology for chlorination of silanes, methoxysilanes and silanols using low loadings of FeCl3 or Fe(acac)3 as the catalyst in the presence of 1-1.5?equivalents of acetyl chloride as the chlorine source was recently developed. The aim of the present paper is to evaluate and derive the reaction mechanisms involved in this reaction by calculating substrates, intermediates, products, and selected transition states, as well as by employing mathematical modeling of the reaction kinetics. The results obtained required reconsideration of the originally proposed overall reaction mechanism. Based on the kinetic and molecular modeling, a new revised reaction mechanism was developed giving a very good correspondence between the experimental data and calculations.
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.
