C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/448.5, 260/4
C07F 7/12 (2006.01) C07F 7/08 (2006.01)
Patent
CA 1110646
ABSTRACT OF THE DISCLOSURE An improved process for converting an organosilane is provided herein. The process comprises reacting at least one silane (A) having the formula Ra Si Cl4-a with at least one silane (B) which differs from silane (A) and has the formula Rb Si Cl4-b in the presence of an organoaluminum conpound having the formula R? AlY 3-c and at least one silane (C) having the formula Rb Hc Si Cl4-b-c and from 0.1 to 5 percent by weight based an the weight of silanes (A), (B) and (C) of a hydrogen halide, in which R is a hydrocarbon radical having from 1 to 10 carbon atoms and is free of aliphatic unsaturation, R1 is an alkyl radical having from 1 to 4 carbon atoms, Y is selected from the group consisting of halogen, hydrogen or hydrocarbon radicals having from 1 to 10 carton atoms which are bonded to the aluminum via oxygen and are free of aliphatic unsaturation, a is 2, 3 or 4, b is 0, 1, 2 or 3 and c is 1, 2 or 3 and the sum of b + c cannot exceed 4. By this process, the redistribution reaction can be carried out at atmospheric pressure and at low temperatures in the presence of smaller quantities of aluminum compounds, but in the ab- sence of aluminum chloride.
305961
Frey Volker
Graf Werner
John Peter
Marcus & Associates
Wacker-Chemie Gmbh
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