ABSTRACT The efficient and green Brønsted acid or Lewis acid catalysis systems for the Friedländer synthesis of 2,3,4-trisubstituted quinolines from the condensation of 2-aminoarylketones and β-ketoesters/ketones had been developed. The results confirmed that 4-toluenesulfonic acid, magnesium chloride, and cupric nitrate were the desired catalyst independently. This protocol had the advantages of mild
摘要 已开发出高效且绿色的布朗斯台德酸或
路易斯酸催化系统,用于从 2-
氨基芳基酮和 β-
酮酯/酮的缩合反应中弗里德兰德合成 2,3,4-三取代
喹啉。结果证实,4-甲
苯磺酸、
氯化镁和
硝酸铜独立地是所需的催化剂。该方案具有条件温和、操作简单、产量高的优点。图形概要