Visible-light-induced photoxidation-Povarov cascade reaction: synthesis of 2-arylquinoline through alcohol and <i>N</i>-benzylanilines under mild conditions <i>via</i> Ag/g-C<sub>3</sub>N<sub>4</sub> nanometric semiconductor catalyst
作者:Peng Wang、Xiaowen Wang、Xiyu Niu、Li Zhu、Xiaoquan Yao
DOI:10.1039/d0cc00885k
日期:——
Ag/g-C3N4 nanometric semiconductor as the photocatalyst, 2-arylquinolines were synthesized through a photoxidation-Povarov cascade reaction of N-benzylanilines and alcohols under visible lightirradiation. Under the blue light of a 3 W LED, good yields were achieved for various substrates in oxygen at room temperature. This methodology provides a green and mild alternative for the formation of 2-arylquinoline
以Ag / g-C3N4纳米半导体为光催化剂,在可见光照射下,通过N-苄基苯胺和醇的光氧化-Povarov级联反应合成了2-芳基喹啉。在3 W LED的蓝光下,室温下在氧气中各种衬底的产率都很高。该方法为2-芳基喹啉衍生物的形成提供了绿色和温和的替代方法。值得注意的是,Ag / g- 纳米复合材料可以方便地回收并以令人满意的产率重复使用数次。
New synthetic approach to epoxyisoindolo[2,1-a]quinolines based on cycloaddition reactions of 2-furyl-substituted tetrahydroquinolines with maleic anhydride and acryloyl chloride
作者:F. I. Zubkov、V. P. Zaitsev、A. S. Peregudov、N. M. Mikhailova、A. V. Varlamov
DOI:10.1007/s11172-007-0159-0
日期:2007.5
A procedure was developed for the synthesis of hydrogenated furyl-substituted furo[3,2-c]quinolines, pyrano[3,2-c]quinolines, and 4-ethoxy-and 4-(2-oxopyrrolidin-1-yl)quinolines. The reactions of these compounds with acryloyl chloride and maleic anhydride produce epoxyisoindolo[2,1-a]quinoline derivatives through successive acylation at the quinoline nitrogen atom and intramolecular exo-[4+2]-cycloaddition at the furan moiety.