- Method for the cleavage of organic siloxanes, and products and applications thereof
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A method for the cleavage of organosiloxanes with chlorosilanes in the presence of ferric chloride and hydrogen chloride as catalysts resulting in chloroalkyl silanes or chloroaryl silanes, and organosiloxanes, which are characterized by one or more --O--Si--R3 groups, (R=alkyl or aryl), which are directly bound to a silicon atom which in turn is bound either to the same grouping or to an alkyl or aryl moiety.
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- 1,1,1,5,5,5-HEXAMETHYLTRISILOXANE: PREPARATION AND SOME REACTIONS
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1,1,1,5,5,5-Hexamethyltrisiloxane (I) was prepared by reaction of (Me3SiO)2Mg or of Me3SiOH with dichlorosilane.Its selective chlorination to give mostly Me3SiOSiHClOSiMe3 and only a small amount of Me3SiOSiCl2OSiMe3 was effected by its PdCl2-catalyzed reaction with CCl4.Photolysis of compound I gave H(Me3SiO)2SiSi(OSiMe3)2H in 30percent yield, as well as polymer.
- Seyferth, Dietmar,Prud'homme, Christian C.,Wang, Wei-Liang
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p. 203 - 210
(2007/10/02)
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