A route to aryl-substituted quinolines from N-tosyl 1-azadienes is described. The key steps are a [4+2] cycloaddition with benzyne followed by base treatment of the 1,4-dihydroquinoline product. The N-tosyl 1-azadienes were prepared from readily accessible cinnamaldehyde and chalcone substrates by condensation with p-TsNH2. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) to view the free supplemental file.
Silver-Catalyzed Oxidative Coupling of Aniline and Ene Carbonyl/Acetylenic Carbonyl Compounds: An Efficient Route for the Synthesis of Quinolines
作者:Xu Zhang、Xuefeng Xu
DOI:10.1002/asia.201402742
日期:2014.11
An efficient silver‐mediated coupling of aniline with ene carbonyl/acetylenic carbonyl compounds for the synthesis of quinolines is reported. The transformation is effective for a broad range of substrates, thus enabling the expansion of substituent architectures on the heterocyclic framework. The electronic properties of the substituents on the amine have been investigated. It was found that molecules
Regiospecific Three-Component Access to Fluorescent 2,4-Disubstituted Quinolines via One-Pot Coupling-Addition-Cyclocondensation-Sulfur Extrusion Sequence
作者:Sven Rotzoll、Benjamin Willy、Jan Schönhaber、Frank Rominger、Thomas J. J. Müller
DOI:10.1002/ejoc.201000212
日期:——
4-Di- and 2,4,7-trisubstituted quinolines are readily synthesized in a regioselective fashion from acyl chlorides, terminal alkynes, and 2-aminothiophenols by a consecutive, microwave-assisted one-potthree-component Sonogashira coupling-Michael addition-cyclocondensation sequence and following sulfur extrusion in moderate to good yields. The terminal sulfur extrusion step was studied by DFT computations
Lewis acid catalyzed reactivity switch: pseudo three-component annulation of nitrosoarenes and (epoxy)styrenes
作者:Anisha Purkait、Subhajit Saha、Santanu Ghosh、Chandan K. Jana
DOI:10.1039/d0cc02650f
日期:——
Lewis acid catalyzed alteration of annulation pattern allowed formation of arylquinolines via C–H functionalization of nitrosoarenes and C–C cleavage of (epoxy)styrene.
Synthesis of substituted quinolines by iron-catalyzed oxidative coupling reactions
作者:Peng Liu、Yuxi Li、Haiyu Wang、Zhiming Wang、Xianming Hu
DOI:10.1016/j.tetlet.2012.09.090
日期:2012.12
A simple and efficient method has been developed for the synthesis of quinoline derivatives from N-alkyl anilines and alkynes or alkenes by iron-catalyzed oxidative couplingreactions. A variety of substituted quinolines are prepared in good to excellent yields.
Synthesis of 2,4-Diarylquinolines: Nickel-Catalysed Ligand-Free Cross-Couplings of 4-Chloro-2-Arylquinolines with Arylmagnesium Halides in 2-Methyltetrahydrofuran
作者:Zhenhua Li、Lingmin Xu、Weike Su
DOI:10.3184/174751911x13026226423986
日期:2011.4
A ligand-free and room temperature protocol for the synthesis of 2,4-diarylquinolines is described. Treatment of 4-chloro-2-arylquinolines with arylmagnesiumhalides in the presence of a catalytic amount of nickel(II) chloride without ligands in 2-methyltetrahydrofuran (2-MeTHF) afforded the corresponding cross-coupling products in good yields.
描述了用于合成 2,4-二芳基喹啉的无配体和室温协议。在催化量的氯化镍 (II) 存在下,在 2-甲基四氢呋喃 (2-MeTHF) 中没有配体的情况下,用芳基卤化镁处理 4-氯-2-芳基喹啉,以良好的产率得到相应的交叉偶联产物。