首页> 外文期刊>Chemistry: A European journal >Coordination Properties of Perfluoroethyl- and Perfluorophenyl-Substituted Phosphonous acids, (RP)-P-f(OH)(2)
【24h】

Coordination Properties of Perfluoroethyl- and Perfluorophenyl-Substituted Phosphonous acids, (RP)-P-f(OH)(2)

机译:全氟乙基和全氟苯基取代的膦酸(RP)-P-f(OH)(2)的配位性能

获取原文
获取原文并翻译 | 示例
           

摘要

Phosphinic acids, (RP)-P-f(O)(OH)H (R-f=CF3, C2F5, C6F5), turned out to be excellent preligands for the coordination of phosphonous acids, (RP)-P-f(OH)(2). Addition of C2F5P(O)(OH)H to solid PtCl2 under different reaction conditions allows the isolation and full characterization of the mononuclear complexes [ClPt{P(C2F5)(OH)O}{P(C2F5)(OH)(2)}(2)] and [Pt{P(C2F5)(OH)O}(2){P(C2F5)(OH)(2)}] containing hydrogen-bridged [(RP)-P-f(OH)O](-) and (RP)-P-f(OH)(2) units. Further deprotonation of [Pt{P(C2F5)(OH)O}(2){P(C2F5)(OH)(2)}(2)] leads to the formation of the dianionic platinate, [Pt{P(C2F5)(OH)O}(4)](2-), revealing four intramolecular hydrogen bridges. With PdCl2 the dinuclear complex [Pd-2(-Cl)(2){[P(C2F5)(OH)O](2)H}(2)] was isolated and characterized. The Cl- free complex [Pd{P(C2F5)(OH)O}(2){P(C2F5)(OH)(2)}(2)] was also prepared and deprotonated to the dianionic palladate, [Pd{P(C2F5)(OH)O}(4)](2-). Both compounds were characterized by NMR spectroscopy, IR spectroscopy, and X-ray analyses. In addition, the C6F5 derivatives [ClPt{P(C6F5)(OH)O}{P(C6F5)(OH)(2)}(2)] and [Pd-2(-Cl)(2){[P(C6F5)(OH)O](2)H}(2)] as well as the CF3 derivative [Pd-2(-Cl)(2){[P(CF3)(OH)O](2)H}(2)] were synthesized and fully characterized. Phosphonous acid complexes are inert towards air and moisture and can be stored for several months without decomposition. The catalytic activity of the palladium complexes in the Suzuki cross-coupling reaction between 1-bromo-3-fluorobenzene and phenyl boronic acid was demonstrated.
机译:膦酸(RP)-P-f(O)(OH)H(R-f = CF3,C2F5,C6F5)被证明是配位亚磷酸(RP)-P-f(OH)(2)的极佳配体。在不同的反应条件下将C2F5P(O)(OH)H添加到固体PtCl2中可以分离和完全表征单核络合物[ClPt {P(C2F5)(OH)O} {P(C2F5)(OH)(2) }(2)]和[Pt {P(C2F5)(OH)O}(2){P(C2F5)(OH)(2)}]含有氢桥联的[(RP)-Pf(OH)O]( -)和(RP)-Pf(OH)(2)单位。 [Pt {P(C2F5)(OH)O}(2){P(C2F5)(OH)(2)}(2)的进一步去质子化导致形成二价铂盐[Pt {P(C2F5) (OH)O}(4)](2-),揭示了四个分子内氢桥。用PdCl2分离并表征了双核络合物[Pd-2(-Cl)(2){[P(C2F5)(OH)O](2)H}(2)。还制备了无Cl的络合物[Pd {P(C2F5)(OH)O}(2){P(C2F5)(OH)(2)}(2)]并去质子化为钯阴离子(Pd {P (C2F5)(OH)O}(4)](2-)。两种化合物均通过NMR光谱,IR光谱和X射线分析表征。此外,C6F5衍生物[ClPt {P(C6F5)(OH)O} {P(C6F5)(OH)(2)}(2)]和[Pd-2(-Cl)(2){[P( C6F5)(OH)O](2)H}(2)]以及CF3衍生物[Pd-2(-Cl)(2){[P(CF3)(OH)O](2)H}( 2)]合成并充分表征。亚磷酸配合物对空气和湿气呈惰性,可以保存数月而不会分解。证明了钯配合物在1-溴-3-氟苯与苯基硼酸之间的Suzuki交叉偶联反应中的催化活性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号