Preparation of alkyl silanes

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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252 496, 252 783, C07F 708

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049737244

ABSTRACT:
A silahydrocarbon functional fliud comprising a mixture of silahydrocarbons of the formula RSiR'.sub.3, wherein the R' radicals may be alike or different, is prepared by a three step process. In the first step in a preferred embodiment, sodium, aluminum, hydrogen, and olefin (corresponding to the radical R') are reacted in the presence of a triorganoaluminum catalyst. In a second step, fresh catalyst is added and reaction is continued. In a third step, the product of the second step is reacted with a trihaloalkylsilane to produce the RSiR'.sub.3 product. Such a product satisfied the U.S. Air Force specification for silahydrocarbon base stock.

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