The preparation of .alpha.-carbonylphosphine oxides by oxidizing an .alpha.-hydroxyalkyl phosphine oxide with an organic hydroperoxide or of an organic peroxy acid in the presence of a compound of a Group IV to Group VIII metal in the periodic table, and novel .alpha.-hydroxybenzyl phosphine oxides. .alpha.-Carbonylphosphine oxides are used as photoinitiators for polymerizable compositions.
通过使用有机过氧化物或有机过氧酸在周期表中IV至VIII族
金属化合物的存在下氧化α-羟基烷基膦氧化物来制备α-羰基膦氧化物,以及新型的α-羟基苯
甲基膦氧化物。α-羰基膦氧化物被用作可聚合组分的光
引发剂。