A new structure of saturated ring skeleton monoligated NHC-Pd-Imine complex was easily synthesized and unambiguously confirmed by X-ray single crystal diffraction. It was found to be an efficient and air-stable catalyst for the α-arylation of ketones. The reaction could be operated in air without any negative effect. Non-activated aryl and heteroaryl chlorides have been successfully applied in the reaction with only 0.5 mol% catalyst loadings under air atmosphere. Excellent to good product yields were afforded.

中文翻译：

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N-杂环卡宾-钯-亚胺络合物在大气气氛下催化酮与芳基和杂芳基氯化物的α-芳基化

饱和环骨架单连接的NHC-Pd-亚胺络合物的新结构很容易合成，并通过X射线单晶衍射确定。发现它是用于酮的α-芳基化的有效且空气稳定的催化剂。该反应可以在空气中进行而没有任何负面影响。非活化的芳基氯化物和杂芳基氯化物已成功地用于反应中，在空气气氛下催化剂的负载量仅为0.5摩尔％。提供了优良的产品收率。