n-butyllithium to form the corresponding salts, M+[H(PO3R2)2], is described. These compounds were characterized by 31P and 1H NMR; their synthetic usefulness was demonstrated by the preparation of a variety of alkylates, R′CH(PO3R2)2, and by the preparation of mono and dihalo derivatives, XCH(PO3R2)2 and X2C(PO3R2)2, by direct halogenation. A superior method of halogenation of teraalkyl methylenediphosphonates
描述了亚甲基
二膦酸四烷基酯与
钠,
钾,氢化
钠和
正丁基锂的
金属化以形成相应的盐M + [ H(PO 3 R 2)2 ]。这些化合物的特征在于31 P和1 H NMR。通过制备各种烷基化物R'CH(PO 3 R 2)2,以及制备单和二卤代衍
生物XCH(PO 3 R 2)2和X 2 C(PO 3)证明了它们的合成有用性。R 2)2,通过直接卤化。还描述了卤代亚甲基
二膦酸四烷基酯的高级方法。
金属化的亚甲基
二膦酸四烷基酯与分子氧在
甲苯溶液中的反应显示是复杂的。