作者:Hendrik Tinnermann、Christian Wille、Manuel Alcarazo
DOI:10.1002/anie.201401073
日期:2014.8.11
A new family of cationic ligands, N‐alkyl/aryl pyridiniophosphines, has been synthesized through a short, scalable, and highly modular route. Evaluation of their electronic properties evidenced weak σ‐donor and quite strong π‐acceptor character when used as ancillary ligands. These attributes confer a substantially enhanced π‐acidity to the PtII and AuI complexes thereof derived and, as result, they
通过短的,可扩展的,高度模块化的途径合成了一个新的阳离子配体家族,N-烷基/芳基吡啶碘膦。当用作辅助配体时,对它们的电子性质的评估显示出较弱的σ供体和相当强的π受体特性。这些属性赋予其衍生的Pt II和Au I络合物实质上增强的π酸度,因此,它们描述了增强炔烃向亲核性攻击的能力。这种优异的性能已通过多种机械上多样化的Pt II和Au I催化的转化得到了证明。