申请人:Huels Aktiengesellschaft
公开号:US04924021A1
公开(公告)日:1990-05-08
Disclosed are 2-silacoumaranes and their o-allylphenolsilane monoester precursors and methods for their preparation. The benzene ring of these new compounds may be substituted with halogen and/or alkyl or alkyl halogen moieties. The cyclization of monoester precursor to the desired end products is performed in the presence of catalysts. This cyclization can be performed without the isolation of the o-allyphenolsilane monoester by feeding by the cyclization reactor with the starting products for the preparation of this intermediate directly after they have reacted, or, if trichlorosilane is the starting product, directly after they have been mixed. Among other applications, the invention compounds are suitable for use as adhesion mediators and additives for coating compositions.
本发明涉及2-硅基香豆素及其O-烯丙基苯基硅酯单酯前体的制备方法。这些新化合物的苯环可以被卤素和/或烷基或烷基卤素基团取代。单酯前体的环化反应在催化剂的存在下进行,可以在不分离O-烯丙基苯基硅酯单酯的情况下进行。可以通过将制备该中间体的起始产品直接加入环化反应器中进行环化反应,或者如果三氯硅烷是起始产品,则可以在它们混合后直接进行。除了其他应用外,这些发明化合物还适用于作为粘附介质和涂料配方添加剂。