α,β-Functionalization of saturated ketones with anthranils via Cu-catalyzed sequential dehydrogenation/aza-Michael addition/annulation cascade reactions in one-pot
An efficient method to access functionalized quinolines from the readily available saturatedketones and anthranils have been explored. This one-pot cascade reaction involves the in situ generation of α,β-unsaturated ketones by the copper catalysed dehydrogenation of saturatedketones followed by the aza-Michael addition of anthranils and subsequent annulation.
Copper-Catalyzed Aerobic Oxidative Carbocyclization Reactions of N-[(E)-Stilben-2-yl]amine Derivatives
作者:Che-Ping Chuang、Cheng-Yen Lu
DOI:10.1055/s-0034-1378870
日期:——
aerobic oxidative carbocyclization reactions of α-substituted N-[(E)-stilben-2-yl]acetamides, via the intramolecular carbocupration onto the alkenyl moiety, produced 3-substituted 2-quinolinones. Several useful functional groups including benzoyl, acetyl, cyano, and ethoxycarbonyl groups are compatible with the reaction conditions. This strategy was further applied to N-[(E)-stilben-2-yl]enamines to prepare
Iron/acetic acid mediated intermolecular tandem C–C and C–N bond formation: an easy access to acridinone and quinoline derivatives
作者:R. R. Rajawinslin、Sachin D. Gawande、Veerababurao Kavala、Yi-Hsiang Huang、Chun-Wei Kuo、Ting-Shen Kuo、Mei-Ling Chen、Chiu-Hui He、Ching-Fa Yao
DOI:10.1039/c4ra06410k
日期:——
An efficient iron/acetic acid mediated one pot reductive cyclization protocol was successfully developed for the synthesis of acridinone and quinoline derivatives.
一种高效的铁/醋酸介导的一锅式还原环化方案成功开发,用于合成吖啶酮和喹啉衍生物。
Selective Reduction of Nitroarenes by a Hantzsch 1,4-Dihydropyridine: A Facile and Efficient Approach to Substituted Quinolines
An efficient reductive cyclization of o-nitrocinnamoyl compounds was achieved by employing a Hantzsch 1,4-dihydropyridine ester as a biomimetic reducing agent in the presence of catalytic palladium on carbon. This approach was successfully applied to the synthesis of substitutedquinolines. quinolines - reductive cyclization - Hantzsch ester - biomimetic reducing agent
A straightforward and efficient method for the synthesis of quinolines via Friedländer reaction of 2-aminobenzaldehyde with various ketones or malononitrile in water without using any catalyst at 70 ˚C is reported. catalyst-free - water - Friedländer reaction - ketones - quinolines