The present invention provides a novel production method which enables obtain a phosphorus compound having both an aromatic substituent and a phosphorinane backbone, without using an expensive hydrogen halide scavenger, without going through a complicated post treatment step or a step of recovering a solvent, and with a favorable yield and purity. In the present invention, step (1) of allowing phosphorus oxytrihalide to react with a phenol compound or naphthol compound at a molar ratio of 1.1-3.0:1 in the presence of metal halide, and removing unreacted phosphorus oxytrihalide, to produce a mono-substituted phosphorodihalidate; and step (2) of allowing the mono-substituted phosphorodihalidate obtained in the step (1) to react with a diol compound, at a 0.90 to 0.99 molar equivalent based on 1 mole of the halogen atom in the mono-substituted phosphorodihalidate so as to perform a dehydrohalogenation reaction, to obtain a phosphorus compound represented by Formula (V).
本发明提供了一种新型的生产方法,使得可以获得一种含有芳基取代物和
磷环酮骨架的
磷化合物,而不使用昂贵的氢卤化物清除剂,也不需要经过复杂的后处理步骤或溶剂回收步骤,并且产率和纯度良好。在本发明中,步骤(1)是在
金属卤化物的存在下,使
磷氧三卤化物与
苯酚化合物或
萘酚化合物以1.1-3.0:1的摩尔比反应,并去除未反应的
磷氧三卤化物,以产生单取代
磷二卤化物;步骤(2)是使步骤(1)中获得的单取代
磷二卤化物与二元醇化合物以0.90至0.99摩尔当量的比例反应,基于单取代
磷二卤化物中1摩尔卤素原子,进行脱卤反应,以获得由式(V)表示的
磷化合物。