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    • 7. 发明申请
    • Process for producing pentaerythritol diphosphonates
    • 制备季戊四醇二膦酸盐的方法
    • US20060116526A1
    • 2006-06-01
    • US10541021
    • 2003-12-25
    • Seiichi TanabeTakatsune YanagidaKazushi TandoYutaka Taketani
    • Seiichi TanabeTakatsune YanagidaKazushi TandoYutaka Taketani
    • C07F9/02
    • C07F9/657181
    • A process for producing a pentaerythritol diphosphonate represented by formula (5) characterized by (A) reacting phosphorus trichloride with pentaerythritol in the presence of an inert solvent to obtain pentaerythritol dichlorophosphite (reaction (a)), (B) reacting the pentaerythritol dichlorophosphite with an aralkyl alcohol to obtain a pentaerythritol diphosphite (reaction (b)), and (C) heat-treating the pentaerythritol diphosphite in the presence of a halogenated compound at a temperature of from 80 to 300° C. (reaction (c)): wherein Ar1 and Ar2, which may be the same as or different from each other, each represents a substituted or unsubstituted aryl group having from 6 to 20 carbon atoms, and R3, R4, R5 and R6, which may be the same as or different from each other, each represents a hydrogen atom, a substituted or unsubstituted aryl group having from 6 to 20 carbon atoms, or a saturated or unsaturated hydrocarbon group having from 1 to 20 carbon atoms.
    • 一种制备由式(5)表示的季戊四醇二膦酸酯的方法,其特征在于(A)在惰性溶剂存在下使三氯化磷与季戊四醇反应,得到季戊四醇二氯亚磷酸酯(反应(a)),(B)使季戊四醇二氯亚磷酸酯与 芳烷基醇,得到季戊四醇二亚磷酸酯(反应(b)),(C)在卤化物存在下,在80〜300℃的温度下,季戊四醇二亚磷酸酯进行热处理(反应(c)):其中 Ar 1和Ar 2彼此可以相同或不同,分别表示取代或未取代的碳原子数为6〜20的芳基,R R 4,R 4,R 5和R 6,其可以彼此相同或不同 各自表示氢原子,取代或未取代的碳原子数为6〜20的芳基或饱和或不饱和烃g 具有1至20个碳原子的糖。