Copper-Catalyzed Aerobic Cascade Oxidative Coupling/Cyclization for the Construction of 1,4-Dihydropyridine Derivatives
作者:Zhi-Qiang Zhu、Zong-Bo Xie、Zhang-Gao Le
DOI:10.1021/acs.joc.6b01736
日期:2016.10.7
An efficient copper-catalyzed cascade cyclization reaction for the preparation of polysubstituted 1,4-dihydropyridines between N-arylglycine esters and 1,3-dicarbonyl compounds using molecular oxygen as the terminal oxidant has been described. Various N-arylglycine esters 1 and 1,3-dicarbonyl compounds 2 were able to undergo the cascade reaction smoothly to afford the desired products 3 in satisfactory
已经描述了一种有效的铜催化的级联环化反应,该反应使用分子氧作为末端氧化剂在N-芳基甘氨酸酯和1,3-二羰基化合物之间制备多取代的1,4-二氢吡啶。各种N-芳基甘氨酸酯1和1,3-二羰基化合物2能够顺利地进行级联反应,以令人满意的产率得到所需的产物3。级联反应具有良好的官能团耐受性和温和的反应条件的优点。在控制实验的基础上,还提出了一种可能的机制。