Direct one-pot synthesis of 3-nitroquinolin-2(1H)-one via H2O/AcOH system: An improvement to classical Friedlander reaction
作者:Xin-fei Chen、Chao Ren、Xiao-yong Xu、Xu-sheng Shao、Zhong Li
DOI:10.1016/j.tetlet.2017.01.092
日期:2017.4
methods, herein we present the one-pot cascade reaction of 1,1-dimeoxyth-2-nitroethene and 2-aminobenzaldehydes which is catalyst-free and via eco-friendly H2O/AcOH solvent, achieving 3-nitroquinolin-2(1H)-ones in moderate to excellent yields. Importantly, this concise and versatile protocol is a potential improvement to the traditional Friedlander reaction.
喹啉-2(1H)-及其衍生物由于在制药,农业和染料化学领域的广泛应用而引起了广泛的关注。与现有的合成方法相反,本文提出了无催化剂且通过生态友好的H 2 O / AcOH溶剂进行的1,1-二乙氧基乙基-2-硝基乙烯和2-氨基苯甲醛的一锅级联反应,实现了3 -nitroquinolin-2(1H)-ones(中等至极好的产率)。重要的是,这种简洁而通用的方案是对传统Friedlander反应的潜在改进。