An allenylidene Au(i) catalyst based on triazolylidene moieties, featuring the high σ-donating ability (comparable to that of other NHC ligands) and largely enhanced π-accepting ability of its ligand, was developed for the first time. As compared with the extant gold complexes such as IPrAuCl, Ph3PAuCl and (PhO)3PAuCl, these allenylidene Au(i) catalysts exhibited superior catalytic activities in the
首次开发了基于三偶氮亚烷基基团的亚烯基Au(i)催化剂,该催化剂具有较高的σ供体能力(可与其他NHC
配体相比)和大大增强了其
配体的π接受能力。与现存的
金络合物如IPrAuCl,Ph3PAuCl和(PhO)3PAuCl相比,这些亚烯基Au(i)催化剂在芳基烯酮的
金催化Nazarov反应中显示出优异的催化活性。