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    • 25. 发明授权
    • Preparation of tertiary alkylphosphorodichloridite derivatives
    • 叔烷基磷酸二氯化物衍生物的制备
    • US4198355A
    • 1980-04-15
    • US922873
    • 1978-07-10
    • Kirk D. Schmitt
    • Kirk D. Schmitt
    • C07F9/145C07F9/146C07F9/141
    • C07F9/146C07F9/145
    • Tertiary alkylphosphorodichloridites, characterized by the formula: ##STR1## where R.sup.1, R.sup.2 and R.sup.3 may be alkyl having from about 1 to about 4 carbon atoms, aryl having from about 6 to about 8 carbon atoms, or aralkyl having from about 7 to about 10 carbon atoms, however, at least one of R.sup.1, R.sup.2 and R.sup.3 must be alkyl, as new compounds, and synthesis thereof by reacting, at temperatures of 0.degree. C. or less, a tertiary alcohol, a tertiary amine scavenger, and phosphorus trichloride, the PCl.sub.3 being employed in amounts in excess of the stoichiometric amount needed to react with the alcohol are provided. Both chlorides of the tertiary alkylphosphorodichloridites so produced may be replaced by RX.sup.- groups from alcohols (ROH), thiols (RSH), or amines (RR.sup.6 NH) in order that tri-substituted phosphite compounds of the formula: ##STR2## are produced. Disubstituted phosphorus acids of the formula: ##STR3## may be produced by heating the trisubstituted phosphite compounds. The RX.sup.- groups are retained as the substituents of the phosphorus acid compound. Such phosphorus acids are extremely useful in lubricating media as antiwear agents, in insecticides and as additives in rubber.
    • 特征为下式的化合物:其中R 1,R 2和R 3可以是具有约1至约4个碳原子的烷基,具有约6至约8个碳原子的芳基或具有约7至约10个碳原子的芳烷基的叔烷基磷酸二氯化物 碳原子,然而,R 1,R 2和R 3中的至少一个必须是烷基,作为新的化合物,以及通过在0℃或更低的温度下,叔醇,叔胺清除剂和三氯化磷 提供的PCl3的用量超过与醇反应所需的化学计量量。 所制备的叔烷基二磷代二氯酸酯的两种氯化物可以由醇(ROH),硫醇(RSH)或胺(RR6NH))的RX-基团代替,以便产生下式的三取代亚磷酸酯化合物:。 可以通过加热三取代的亚磷酸酯化合物来制备下式的二取代的磷酸:。 RX-基保留为磷酸化合物的取代基。 这种磷酸在作为抗磨剂,杀虫剂和橡胶中的添加剂的润滑介质中非常有用。