Systematic X-ray analysis, 13C NMR spectroscopy and computational studies revealed the existence of Pt → C(aryl) π* back donation in P–C–P platinum(ii) pincer complexes.
Direct Synthesis of Chiral Tertiary Diphosphines <i>via</i> Pd(II)-Catalyzed Asymmetric Hydrophosphination of Dienones
作者:Yinhua Huang、Renta Jonathan Chew、Yongxin Li、Sumod A. Pullarkat、Pak-Hing Leung
DOI:10.1021/ol202480r
日期:2011.11.4
A highly diastereo- and enantioselective Pd(II)-catalyzed hydrophosphination of dienones with Ph2PH involving formation of double C*-P bonds has been developed, providing a series of chiral tertiary diphosphines (chiral PCP pincer ligands) in high yields. A catalytic cycle for the reaction was proposed.