Synthesis of a Configurationally Stable Three-Legged Piano-Stool Complex.
Synthesis of a Configurationally Stable Three-Legged Piano-Stool Complex.
复制标题
构型稳定的三足钢琴凳复合体的合成。
作者：
B. Therrien;T. Ward
通过1，3-二取代芳烃与膦和吡唑系链（PArN）的η6：η1：η1配位，得到了具有金属中心手性的过渡金属刘易斯酸。三脚钢琴凳配合物[{η6：η1：η1 -（PArN）}Ru（H2 O）]2+（结构如图所示）显示出显著的构型稳定性。其平面手性中性前体[{η6：η1 -（PArN）} RuCl 2]可通过制备型HPLC拆分。
A transition metal Lewis acid with metal-centered chirality is obtained by η6 :η1 :η1 coordination of a 1,3-disubstituted arene with a phosphane and a pyrazole tether (PArN) to ruthenium. The three-legged piano-stool complex [{η6 :η1 :η1 -(PArN)}Ru(H2 O)]2+ (structure depicted) displays remarkable configurational stability. Its planar chiral, neutral precursor [{η6 :η1 -(PArN)}RuCl2 ] can be resolved by preparative HPLC.