A process for the preparation of a protected phosphine oxide which comprises reacting a phosphinate ester having a protecting group on the phosphorus atom with an organomagnesium halide or an organolithium compound at a temperature of -70°C to 65°C. Protected phosphine oxides so prepared are useful intermediates for the preparation of tertiary phosphine oxides and acylphosphine oxide photoinitiators.
一种制备受保护的氧化膦的工艺,包括在-70℃至65℃的温度下,使
磷原子上带有保护基团的
膦酸酯与有机卤化
镁或
有机锂化合物反应。这样制备的保护氧化膦是制备三级氧化膦和酰基氧化膦光
引发剂的有用中间体。