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.
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Iron-Catalyzed Chlorination of Silanes
Risto Savela, Wojciech Zawartka, and Reko Leino
Organometallics Article ASAP
Laboratory of Organic Chemistry, Åbo Akademi University, 20500 Åbo, Finland
Publication Date (Web): April 5, 2012
Copyright © 2012 American Chemical Society