A ruthenium complex bearing a functional 2,2′-bibenzimidazole ligand [(p-cymene)Ru(BiBzImH₂)Cl][Cl] was designed, synthesized and found to be a general and highly efficient catalyst for the synthesis of quinolines via acceptorless dehydrogenative coupling of o-aminobenzyl alcohols with ketones in the presence of carbonate salt. It was confirmed that NH units in the ligand are crucial for catalytic activity. The application of this catalytic system for the scale-gram synthesis of biologically active molecular was also undertaken. Notably, this research exhibits new potential of metal–ligand bifuctional catalysts for acceptorless dehydrogenative reactions.

设计，合成了带有功能性2,2'-联苯并咪唑配体[（p- Cymene）Ru（BiBzImH ₂）Cl] [Cl]的钌配合物，它是通过无受体合成喹啉的通用高效催化剂。碳酸盐存在下邻氨基苄醇与酮的脱氢偶联。证实了配体中的NH单元对于催化活性至关重要。还进行了该催化体系在生物活性分子的规模克合成中的应用。值得注意的是，这项研究展示了金属-配体双功能催化剂在无受体脱氢反应中的新潜力。