Metalated methylenediphosphonate esters. Preparation, characterization and synthetic applications
作者:O.T. Quimby、J.D. Curry、D. Allan Nicholson、J.B. Prentice、C.H. Roy
DOI:10.1016/s0022-328x(00)88873-7
日期:1968.7
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。