in moderate-to-good yields. These complexes have been well characterized, and their exact structure was elaborated on by single-crystal X-ray analysis. The iridium(III) complexes 1–4 showed good catalytic activity in the imine synthesis under open-flask conditions (air as the oxidant) from primary amine oxidative homocoupling, secondary amine dehydrogenation, and the cross-coupling reaction of amine
四个空气稳定的环
金属化半夹心
铱络合物1 - 4与C,是在中度至良好的产率通过C-H活化制备N-供席夫碱
配体。这些配合物已被很好地表征,并且它们的确切结构通过单晶X射线分析得到了详细说明。
铱(III)配合物1 - 4
伯胺氧化均偶联,仲胺脱氢以及胺与醇的交叉偶联反应在开瓶条件下(以氧化剂为空气)在
亚胺合成中显示出良好的催化活性。键合在
铱配合物
配体上的取代基对催化效率的影响很小。
铱催化剂的稳定性和良好的催化效率,适度的反应条件和底物的通用性显示了其在工业生产中的潜在应用。