非活化芳烃的官能团关键步骤中通常包含过渡金属插入C-H键形成的双配位过程,但是可衡量的均衡η2-芳烃、芳基负氢物种极为罕见。有鉴于此,弗吉尼亚大学W. Dean Harman、杨百翰大学Daniel H. Ess等报道了{WTp(NO)(PBu3)} (Bu=n-butyl; Tp=trispyrazoylborate)体系中温度、溶剂、辅助配体、取代芳烃的影响。
参考文献
Jacob A. Smith, Anna Schouten, Justin H. Wilde, Karl S. Westendorff, Diane A. Dickie, Daniel H. Ess*, and W. Dean Harman*
Experiments and Direct Dynamics Simulations that Probe η2-Arene/Aryl-Hydride Equilibria of Tungsten Benzene Complexes, J. Am. Chem. Soc. 2020
DOI: 10.1021/jacs.0c08032