Synthesis and Structural Characterization of New Bimetallic [C,N,S] Palladacycles with Mixed Bridging [P,P] and Chelating [P,P] or [P,N] Phosphane Ligands
作者:José M. Antelo、Luis Adrio、M. Teresa Pereira、Juan M. Ortigueira、Alberto Fernández、José M. Vila
DOI:10.1002/ejic.201000875
日期:2011.1
tertiary diphosphanes or diphenyl-2-pyridylphosphane gave novel dipalladium compounds with chelating [C,N,S], bridging [P,P], and chelating [P,P] or [P,N] ligands, as appropriate. The short-chain diphenyl-2-pyridylphosphane ligand forms stable four-membered P–N chelates, which display S–Pd–P and N–Pd–P trans geometries. The Pd–Cl bonds are nonreactive towards displacement by the [P,P] or [P,N] ligands
用高氯酸银处理双金属钯环,然后与叔二膦或二苯基-2-吡啶基膦反应得到具有螯合 [C,N,S]、桥连 [P,P] 和螯合 [P,P] 或 [ P,N] 配体,视情况而定。短链二苯基-2-吡啶基膦配体形成稳定的四元 P-N 螯合物,具有 S-Pd-P 和 N-Pd-P 反式几何结构。Pd-Cl 键对 [P,P] 或 [P,N] 配体的置换没有反应,即使在强螯合二膦的情况下也是如此。