Heterogeneous manganese-oxide-catalyzed successive cleavage and functionalization of alcohols to access amides and nitriles
作者:Peipei He、Bo Chen、Liang Huang、Xixi Liu、Jingzhong Qin、Zehui Zhang、Wen Dai
DOI:10.1016/j.chempr.2022.02.021
日期:2022.7
manganese-oxide-catalyzed successive cleavage and amidation of C–C bonds in alcohols. A wide range of primary and secondary alcohols, 1,2-diols, and even β-O-4 and β-1 lignin model compounds can undergo C–C bond cleavage smoothly to deliver one- or multiple-carbon shorter amides. Moreover, a slight modification of reaction conditions allows for the cleavage and cyanation of alcohols to access sterically hindered nitriles
醇中 C-C 键的连续裂解和功能化已成为发现新转化的快速发展领域。然而,由于 C-C 键的固有惰性,以直接和选择性的方式实现它仍然具有挑战性。在此,我们报告了一种新颖且有效的方案,该方案能够通过多相氧化锰催化的醇中 C-C 键的连续裂解和酰胺化直接合成酰胺。范围广泛的伯醇和仲醇、1,2-二醇,甚至 β-O-4 和 β-1 木质素模型化合物都可以顺利地进行 C-C 键断裂,以提供单碳或多碳短酰胺。此外,反应条件的轻微改变允许醇的裂解和氰化以获得空间位阻腈。