1-aza-2-silacyclobutane compounds and method for their...

C - Chemistry – Metallurgy – 07 – F

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C07F 7/10 (2006.01) C07F 7/18 (2006.01)

Patent

CA 2099790

The present invention unexpectedly introduces 1-aza-2-silacyclobutane compounds whose nitrogen is substituted by a hydrocarbon group or heteroatom-containing hydrocarbon group, whose N-Si bond remains highly reactive, and which are very effective as silanol endblocking agents and silane coupling agents. The present invention also introduces a method for the preparation of these l-aza-2-silacyclobutanes by the intramolecular hydrosilylation reaction of N,N-disubstituted aminosilane.

La présente invention concerne, de manière inattendue, des 1-aza-2-silacyclobutanes, dont l'atome d'azote est substitué par un groupement hydrocarboné ou un groupement hydroacarboné renfermant un hétéroatome, et dont la liaison N-Si reste très réactive. Ces composés sont des agents de blocage de terminaisons de silanols et des agents de couplage de silanes très efficaces. La présente invention concerne aussi une méthode de préparation de ces 1-aza-2-silacyclobutanes par hydrosylilation intramoléculaire de N,N-aminosilanes disubstitués.

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