申请人:E. I. Du Pont de Nemours and Company
公开号:US05194616A1
公开(公告)日:1993-03-16
A process for producing phosphonate esters containing the 2-(pyridyl)ethyl group by reacting a vinylpyridine with a di- or trihydrocarbylphosphite in the presence of a selected silane, protic acid, or Lewis acid is disclosed. Also disclosed are novel silylphosphonate esters containing the 2-(pyridyl)ethyl group. All of the compounds produced herein are useful as catalysts for increasing the molecular weight of polyamides.
本发明揭示了一种通过在选择的硅烷、质子酸或Lewis酸存在下,将乙烯吡啶与二或三烃基磷酸酯反应来制备含有2-(吡啶基)乙基基团的膦酸酯的方法。还揭示了含有2-(吡啶基)乙基基团的新型硅基膦酸酯。本文中生产的所有化合物均可用作增加聚酰胺分子量的催化剂。