C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/446.3
C07F 7/10 (2006.01)
Patent
CA 1096392
ABSTRACT OF THE DISCLOSURE Method for the preparation of silicon-nitrogen compounds of the general formulae (R3Si)n NR'3-n or R2Si(NR'2)2 or cyclic ?R2SiNR'??, wherein the radicals R' which are the same or different each represent a hydrogen atom, an alkyl group containing 1 to 8 carbon atoms or an aryl group, the radicals R which are the same or different each represent an alkyl group containing 1 to 20 carbon atoms or an aryl radical, n is 1 or 2 and x is 3 or 4. The method is characterized in that hydrogensilanes of the general formula R3-ySiHy+1, in which y is 0 or 1 and R has the aforesaid meaning, are reacted with ammonia or amines of the general formula NR'3-nHn, in which R' and n have the aforesaid meaning, in the presence of a catalyst consisting of an element of the 8th sub-group of the Periodic Table, or a salt or complex compound thereof, with the liberation of hydrogen. This method enables one to prepare silicon-nitrogen compounds in a pure or easily purified form without the similtaneous occurrence of waste products.
285849
Draese Rudiger
Kotzsch Hans-Joachim
Vahlensieck Hans J.
Dynamit Nobel Aktiengesellschaft
Robic Robic & Associes/associates
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