Chitosan-SO3H is found to catalyze the Friedländer condensation/annulation reaction of 2-aminoaryl ketones with α-methyleneketones to produce the corresponding quinolinederivatives in high yields in short reaction times. The use of recyclable and biodegradable chitosan-SO3H makes this method quite simple, more convenient, and economically viable compared to acid catalyzed methods reported in the literature
Palladium-catalyzed synthesis of polysubstituted quinolines from 2-amino aromatic ketones and alkynes
作者:Wang Zhou、Jianhua Lei
DOI:10.1039/c4cc00939h
日期:——
A palladium-catalyzed one-pot method for the synthesis of quinolines from commercial or readily available 2-amino aromatic ketones and alkynes is reported for the first time. This transformation offers an alternative method for the synthesis of polysubstituted quinoline.
An efficient heterogeneous gold(I)-catalyzed intermolecular cycloaddition of 2-aminoaryl carbonyls and internal alkynes leading to polyfunctionalized quinolines
作者:Wenli Hu、Weisen Yang、Tao Yan、Mingzhong Cai
DOI:10.1080/00397911.2019.1567788
日期:2019.3.19
first heterogeneous intermolecular cycloaddition of 2-aminoaryl carbonyls and internal alkynes was realized in DMF at 100 °C by using a triphenylphosphine-functionalized MCM-41-supported gold(I) complex [MCM-41-PPh3-AuCl] and AgOTf as catalysts, yielding a variety of polyfunctionalized quinolines in good to excellent yields. This heterogeneous gold(I) complex could easily be prepared via a simple two-step
Synthesis and biological evaluation of dihydroquinoline carboxamide derivatives as anti-tubercular agents
作者:Gautam Kumar、Asawari Sathe、Vagolu Siva Krishna、Dharmarajan Sriram、Sanjay M. Jachak
DOI:10.1016/j.ejmech.2018.07.046
日期:2018.9
trifluoromethanesulfonate, and glacial acetic acid selectively catalyzed the synthesis of dihydroquinoline via Friedländer annulation. The synthesized dihydroquinoline analogues coupled with different amines by the use of coupling reagent gave dihydroquinoline carboxamidederivatives in moderate to good yields. All the synthesized novel compounds were evaluated for the anti-tubercular activity and cytotoxic
Copper(II)-Catalyzed Three-Component Cascade Annulation of Diaryliodoniums, Nitriles, and Alkynes: A Regioselective Synthesis of Multiply Substituted Quinolines
作者:Yong Wang、Chao Chen、Jing Peng、Ming Li
DOI:10.1002/anie.201300586
日期:2013.5.10
Three become one: Multiply substituted quinolines were synthesized from diaryliodoniums, alkynes, and nitriles by a CuII‐catalyzed method. This cascade annulation is highly regioselective, step‐economic, flexible with regard to the functional groups, and could potentially be applied to the synthesis of complex molecules.