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    • 10. 发明授权
    • Process for the preparation of neutral phosphorous acid aryl esters
    • 中性磷酸芳酯的制备方法
    • US4356129A
    • 1982-10-26
    • US213136
    • 1980-12-04
    • Uwe HucksErhard TresperClaus Wulff
    • Uwe HucksErhard TresperClaus Wulff
    • C07F9/145C08K5/526C07F9/141
    • C08K5/526C07F9/145
    • A process for the preparation of a neutal phosphorous acid aryl ester of the general formula ##STR1## wherein a phosphorus trihalide, phosphorus acid monoester dihalide or phosphorous acid diester halide is reacted with a hydroxyaryl compound wherein an excess of hydroxyaryl compound and an excess of aqueous alkali metal hydroxide solution or suspension or alkaline earth metal hydroxide solution or suspension are employed, relative to the phosphorus halide compound, an inert water immiscible organic solvent and/or diluent is employed in an amount such that 5 to 50% strength solution of the neutral phosphorous acid aryl ester is formed and after the reaction, the organic phase is separated off and the phosphorous acid aryl ester formed is isolated by removing the solvent and/or diluent.
    • 制备通式为(III)的中性磷酸芳酯的方法,其中将三卤化磷,磷酸单酯二卤化物或亚磷酸二酯卤化物与羟基芳基化合物反应,其中过量的羟基芳基化合物和 使用过量的碱金属氢氧化物水溶液或悬浮液或碱土金属氢氧化物溶液或悬浮液相对于卤化磷化合物,惰性水不混溶有机溶剂和/或稀释剂的用量使得5至50%强度溶液 形成中性亚磷酸芳酯,反应后分离有机相,通过除去溶剂和/或稀释剂分离形成的亚磷酸芳酯。