Synthesis of Palladium(
<scp>II</scp>
) and Platinum(
<scp>II</scp>
) Complexes with Crown Ether Phosphane Ligands: Stille Coupling of Aryl Iodides in Water
作者:Jorge Fresneda、Ernesto de Jesús、Pilar Gómez‐Sal、Carmen López Mardomingo
DOI:10.1002/ejic.200400906
日期:2005.4
PtCl2 (13–15) complexes are reported. The molecular structure of the borane complex PAr*2Ph·BH3 (9) has been determined by X-ray structural analysis. Spectroscopic data suggest that phosphanes 1–3 have similar electronic properties and steric requirements to the corresponding phenylphosphane ligands PPh2Me and PPh3. Crown ether methylphosphane 2 and its complexes are remarkably water soluble, but 1
冠醚磷烷PAr*Ph2(1)和PAr*2R[Ar*=3,4-(18-crown-6)-苯基;R = 我 (2); 已经研究了由 PCl2R 和 Ar*Li 制备的 R = Ph (3)]。报道了它们的氧化物 (4-6) 及其 BH3 (7-9)、PdCl2 (10-12) 和 PtCl2 (13-15) 配合物的合成和表征。硼烷配合物PAr*2Ph·BH3(9)的分子结构已通过X射线结构分析确定。光谱数据表明,膦 1-3 与相应的苯基膦配体 PPh2Me 和 PPh3 具有相似的电子特性和空间要求。冠醚甲基膦 2 及其配合物具有显着的水溶性,但 1 和 3 仅微溶。钯 (II) 配合物 14 和 15 已在苯基三氯锡烷和芳基碘化物在水中的 Stille 偶联中作为催化剂进行了测试。