Method of selective reduction of polyhalosilanes with...

C - Chemistry – Metallurgy – 01 – B

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C01B 33/107 (2006.01) C07F 7/08 (2006.01)

Patent

CA 1310468

METHOD OF SELECTIVE REDUCTION OF POLYHALOSILANES WITH ALKYLTIN HYDRIDES ABSTRACT The invention relates to the selective and stepwise reduction of polyhalosilanes by reacting at room temperature or below with alkyltin hydrides without the use of free radical intermediates. Alkyltin hydrides selectively and stepwise reduce the Si-Br, Si-Cl, or Si-I bonds while leaving intact any Si-F bonds. When two or more different halogens are present on the polyhalosilane, the halogen with the highest atomic weight is preferentially reduced.

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