75888-21-0Relevant articles and documents
Process for the disproportionation of silanes
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, (2008/06/13)
Silane, SiH4, and diochlorosilane, particularly suitable for the preparation of silicon are readily obtained by disproportionating trichlorosilane to dichlorosilane and, ultimately silane by reacting: (a) a silane containing at least one Si-H bond, of the general formula Rn Hm SiX4-(n+m) wherein R represents an alkyl or aryl group, x represents a halogen or an alkoxy group, n is an integer equal to 0, 1, 2 or 3 and m is an integer equal to 1, 2 or 3, and (b) a catalyst system comprising an ionic inorganic salt of the formula M+ A- and a compound capable of at least partially dissociating the salt by complexing its cation M+.
Process for the preparation of tris-(ether-amines) and the tris-(ether-amines) produced
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, (2008/06/13)
A process of preparing tris-(ether-amines) of the formula: in which R represents a hydrocarbon radical, A and B represent alkanediyl radicals, and n is a whole number between zero and 4, by ammonolysis of an alkylene glycol mono-ether of the formula: in the presence of 10 to 40 percent by weight of a hydrogenation-dehydrogenation catalyst, based on weight of said alkylene glycol monoether. The tris-(ether-amines) produced, such as tris-(3,6-dioxa-octyl)amine, tris-(3,6,9-trioxaundecyl)amine, tris-(3,6-dioxaheptyl)amine, and tris-(3,6-dioxadecyl)amine.
