Process for preparing fluoroalkyl-containing organosilicon...

C - Chemistry – Metallurgy – 07 – F

Patent

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Details

C07F 7/12 (2006.01) C03C 17/30 (2006.01) C04B 41/49 (2006.01) C07F 7/14 (2006.01) C07F 7/18 (2006.01) C08G 77/385 (2006.01) C23C 30/00 (2006.01) D06M 13/517 (2006.01) D06M 15/657 (2006.01)

Patent

CA 2219606

Disclosed is a process for preparing a fluoroalkyl-containing organosilicon compound by reacting a fluorine-containing olefin with an organosilicon compound which contains at least one H-Si group, in the presence of a Pt(O) complex catalyst and, when required, recovering the fluoroalkyl-containing organosilicon compound from the reaction mixture. By the use of the Pt(O) complex catalyst, the reaction may be carried out under mild conditions with a high yield and high selectivity and with virtually no isomerization. The resulting organosilicon compound may be used as a textile auxiliary or an architectural preservative or for modifying surface properties.

On dévoile un procédé pour préparer un composé organosilicié contenant un fluoroalkyle par réaction d'une oléfine contenant du fluor avec un composé organosilicié contenant au moins un groupe H-Si, en présence d'un complexe catalytique à base de Pt(O) et, au besoin, pour récupérer les composés organosiliciés contenant un fluoroalkyle présents dans le mélange réactionnel. Grâce à l'utilisation du complexe catalytique à base de Pt(O), la réaction peut être réalisée dans des conditions douces avec un rendement élevé et une sélectivité élevée, sans compter l'absence presque totale d'isomérisation. Le composé organosilicié ainsi obtenu peut être utilisé comme auxiliaire dans l'industrie textile, comme agent de conservation architectural ou comme modificateur des propriétés d'une surface.

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