formation or C–C bond formation upon homocondensation or reaction with simple olefins, respectively. Cyclization followed by a final oxidation generates these classes of interesting bioactive heterocycles in one synthetic transformation. Additionally, the one-pot multicomponent synthesis of quinolines from anilines, aldehydes, and olefins has also been successfully developed under these mild oxidative conditions
Visible-Light-Induced Photocatalytic Aerobic Oxidative C<sub>sp3</sub>–H Functionalization of Glycine Derivatives: Synthesis of Substituted Quinolines
作者:Xiaorong Yang、Liqi Li、Ying Li、Yuan Zhang
DOI:10.1021/acs.joc.6b02683
日期:2016.12.16
with unactivated alkenes has been accomplished. This visible light-driven protocol has been successfully applied to a broad scope of glycine esters and simple alkenes, giving rise to diverse substitutedquinoline derivatives in 18–84% yield under mild (at room temperature under air atmosphere) and operationally simple reaction conditions.
One-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed three-component cascade annulation of amines, alkyne esters and terminal alkynes
作者:Yunlan Li、Qiurui Zhang、Xuefeng Xu、Xu Zhang、Yurong Yang、Wei Yi
DOI:10.1016/j.tetlet.2019.03.003
日期:2019.4
Described herein is a new and general method for one-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed [3 + 1 + 2] annulation of simple amines, alkyne esters and terminal alkynes. The versatile transformation might initiate with the facile formation of the enamine species with the feature of good to excellent yields, exclusive regioselectivity, and excellent substrate/functional group
An efficient electrocatalytic functionalization of N-arylglycine esters is reported. The protocol proceeds in an undivided cell under constant current conditions employing the simple, cheap and readily available n-Bu4NI as the mediator. In addition, it is demonstrated that the mediated process is superior to the direct electrochemical functionalization.