Effective and Sustainable Access to Quinolines and Acridines: A Heterogeneous Imidazolium Salt Mediates C-C and C-N Bond Formation
作者:Patricia Gisbert、María Albert-Soriano、Isidro M. Pastor
DOI:10.1002/ejoc.201900880
日期:2019.8.15
A robust catalytic system mediates metal‐free and solvent‐free C–C and C–N bond formation by favoring the interaction between the reactants due to the presence of carboxylicacid moieties and chloride counterion, providing a sustainable protocol with appropriate environmental impact.
Environmentally Friendly Nafion-Mediated Friedländer Quinoline Synthesis under Microwave Irradiation: Application to One-Pot Synthesis of Substituted Quinolinyl Chalcones
作者:Cheng-Chung Wang、Chieh-Kai Chan、Chien-Yu Lai
DOI:10.1055/s-0039-1690088
日期:2020.6
An efficient and eco-friendly synthetic route for Friedländer quinoline synthesis of polysubstituted quinolines is described. This green chemical method starts from various 2-aminobenzophenones and mono- or dicarbonyl synthons and uses reusable Nafion NR50 material as a solid catalyst in ethanol undermicrowaveirradiation. The protocol has a high generality of functional groups and provides the desired
Bi(OTf)<sub>3</sub>-Catalyzed Friedländer Hetero-Annulation: A Rapid Synthesis of 2,3,4-Trisubstituted Quinolines
作者:J. S. Yadav、B. V. Reddy、K. Premalatha
DOI:10.1055/s-2004-822898
日期:——
Polysubstituted quinolines are readily prepared in high yields under extremely mild conditions through a sequential condensation/annulation reaction of 2-aminoaryl ketones and α-methylene ketones using a catalytic amount of bismuth triflate.
Highly efficient Brønsted acid and Lewis acid catalysis systems for the Friedländer Quinoline synthesis
作者:Xiao-Yu Zhou、Xia Chen、Liang-Guang Wang
DOI:10.1080/00397911.2018.1428346
日期:2018.4.3
ABSTRACT The efficient and green Brønsted acid or Lewis acid catalysis systems for the Friedländersynthesis of 2,3,4-trisubstituted quinolines from the condensation of 2-aminoarylketones and β-ketoesters/ketones had been developed. The results confirmed that 4-toluenesulfonic acid, magnesium chloride, and cupric nitrate were the desired catalyst independently. This protocol had the advantages of mild
An Efficient and Green Microwave-Assisted Synthesis of Quinoline Derivatives<i>via</i>Knoevengal Condensation
作者:Syed Tasqeeruddin、Yahya Asiri、Jaber Abdullah Alsherhri
DOI:10.2174/1570178616666190618153721
日期:2020.1.7
We have developed an efficient and green synthesis of quinoline derivatives using L-proline under Knoevenagel condensation. L-proline was found to be an efficient catalyst for the Knoevenagel condensation of substituted 2-aminoaryl ketones 1 with the active methylene compounds 2, affording quinolone derivatives 3. The reaction has been done under conventional as well as under microwave conditions.