Manganese(I)-Catalyzed Sustainable Synthesis of Quinoxaline and Quinazoline Derivatives with the Liberation of Dihydrogen
作者:Akash Mondal、Manoj Kumar Sahoo、Murugan Subaramanian、Ekambaram Balaraman
DOI:10.1021/acs.joc.0c00561
日期:2020.6.5
Direct synthesis of N-heterocycles via the acceptorless dehydrogenative coupling is very challenging and scarcely reported under 3d transition-metal catalysis. Here, we have developed an efficient Mn(I)-catalyzed sustainable synthesis of various quinoxalines from 1,2-diaminobenzenes and 1,2-diols via the acceptorless dehydrogenative coupling reaction. Further, this strategy was successfully applied
通过无受体的脱氢偶联直接合成N-杂环是非常具有挑战性的,在3d过渡金属催化下几乎没有报道。在这里,我们通过无受体脱氢偶联反应,从1,2-二氨基苯和1,2-二醇开发了一种高效的Mn(I)催化可持续合成各种喹喔啉的方法。此外,通过2-氨基苄醇与伯酰胺的反应,该策略成功用于空前的喹唑啉合成。本协议提供了一个原子经济和可持续的途径,通过使用富含地球的锰盐和简单的无膦NNN-三齿配体来合成各种喹喔啉和喹唑啉衍生物。