From CO<sub>2</sub> to 4<i>H</i>-Quinolizin-4-ones: A One-Pot Multicomponent Approach via Ag<sub>2</sub>O/Cs<sub>2</sub>CO<sub>3</sub> Orthogonal Tandem Catalysis
作者:Chao-Chen Dong、Jun-Feng Xiang、Li-Jin Xu、Han-Yuan Gong
DOI:10.1021/acs.joc.8b01206
日期:2018.8.17
report relatively simple and cost-effective orthogonal tandem catalysis, namely Ag2O in conjunction with Cs2CO3 serves to promote a multicomponent tandem reaction forming two new C–C and one new C–N bonds. 4H-Quinolizin-4-ones, key skeletal components in a variety of biologically active molecules, were obtained with yields up to 99%. The present approach features a broad substrate scope and mild reaction
本文使用二氧化碳作为C1的前体,我们报告了相对简单且经济高效的正交串联催化,即Ag 2 O与Cs 2 CO 3结合可促进多组分串联反应,形成两个新的C–C和一个新的C– N个债券。获得了4 H -Quinolizin-4-ones,这是多种生物活性分子中的关键骨架成分,产率高达99%。本方法具有广泛的底物范围和温和的反应条件,并受益于使用具有成本效益的反应和催化剂。