申请人:Hoechst Aktiengesellschaft
公开号:US05298644A1
公开(公告)日:1994-03-29
Aryl phosphinites of the formula (I) ##STR1## can be prepared in a simple manner and in high yields by reacting 2,4-di-tert.-butylphenylphosphonous dihalides with alkyl- or arylmagnesium bromides or alkyl- or arylmagnesium chlorides. Aryl phosphinites serve for the preparation of secondary phosphine oxides which are used as starting materials for the preparation of phosphine ligands in catalyst systems.
化学式(I)的芳基膦酸酯可以通过将2,4-二叔丁基苯基膦酸二卤化物与烷基或芳基溴化镁或烷基或芳基氯化镁反应,以简单且高产率的方式制备。芳基膦酸酯用于制备次磷氧化物,后者可用作催化系统中磷配体的制备起始物料。