| 摘要 |
<p>Cyclic phenol organosilane esters and the o-allylphenol silane monoesters obtained in their preparation are described. The benzene ring of these new compounds is preferably substituted by chlorine or methyl radicals; these compounds are suitable for bioresistant preserving and sterilising finishing of natural and synthetic materials. Some of the compounds claimed are also suitable as adhesion promoters and for the finishing of glass fibres. These new compounds are in principal prepared by known processes. In the preparation of the o-allylphenol silane monoesters, however, in some cases the reaction must be carried out in the presence of excess hydrogen chlorosilanes. The cyclisation of these precursors to give the desired final products is carried out in the presence of platinum and/or rhodium catalysts by the addition reaction which is known per se. This cyclisation can also be carried out without isolation of the o-allylphenol silane monoester by adding the starting products for the preparation of this intermediate to the cyclisation reactor directly after its reaction or, when employing trichlorosilane as starting material, directly after mixing. These special procedures are also described.</p> |
