Method for preparing aryl phosphine by reducing aryl phosphine oxide

The invention discloses a method for preparing aryl phosphine by reducing aryl phosphine oxide. The method comprises the following step: generating aryl phosphine from aryl phosphine oxide and a reducing agent under the action of an organic phosphorus catalyst, the organophosphorus catalyst is a compound which is simple in structure, simple in synthetic route or commercially available, is stable in air and easy to operate, and can efficiently reduce aryl phosphine oxide into aryl phosphine under mild reaction conditions. 本发明公开了一种还原芳基氧化膦制备芳基膦的方法，该方法包括芳基氧化膦和还原剂在本发明有机磷催化剂的作用下生成芳基磷；本发明有机磷催化剂为结构简单，合成路线简单或是商业可得的化合物，在空气中稳定，易于操作，可以在温和的反应条件下高效地将芳基氧化膦还原为芳基膦。