A Multicomponent Reaction of Acetals for the Preparation of Quinolines
作者:Xue-Lin Zhang、Qin-Pei Wu、Qing-Shan Zhang
DOI:10.3184/174751913x13814036942713
日期:2013.11
A straightforward, mild, one-pot method has been found for the preparation of quinolines via a multi-component reaction using acetals or cyclic acetals, aromatic amines and alkynes catalysed by Bi(OTf)3. It gives good yields under mild conditions. This approach has been successfully applied for the synthesis of a range of quinolines with a variety of functional groups.
Enantioselective Metal-Free Hydrogenations of Disubstituted Quinolines
作者:Zhenhua Zhang、Haifeng Du
DOI:10.1021/acs.orglett.5b03307
日期:2015.12.18
A metal-freehydrogenation of 2,4-disubstituted quinolines was realized for the first time using chiral diene derived borane catalysts to furnish the corresponding tetrahydroquinolines in 75–98% yields with 95/5−99/1 dr’s and 86–98% ee’s. This catalytic system was also effective for 2,3-disubstituted quinolines to give moderate to good ee’s.
Sequential catalytic process: synthesis of quinoline derivatives by AuCl3/CuBr-catalyzed three-component reaction of aldehydes, amines, and alkynes
作者:Fengping Xiao、Yulin Chen、Yu Liu、Jianbo Wang
DOI:10.1016/j.tet.2008.01.046
日期:2008.3
A sequential catalytic process has been developed based on gold-catalyzed nucleophilic addition of terminal alkynes to imines, and gold-catalyzed intramolecular reaction of aromatic ring to alkynes. This one-pot reaction of aldehydes, amines, and alkynes gives quinoline derivatives in good yields.
Zn(OTf) 2 -mediated C H activation: An expeditious and solvent-free synthesis of aryl/alkyl substituted quinolines
作者:Prashant B. Sarode、Sandeep P. Bahekar、Hemant S. Chandak
DOI:10.1016/j.tetlet.2016.10.113
日期:2016.12
Zinc(II) triflate catalyzed three-component coupling reactions of alkynes, amines and aldehydes leading to the formation of aryl/alkyl substitutedquinolines has been described. Notably, the reaction proceeded efficiently and effectively without the use of ligand, co-catalyst, solvent or inert atmosphere. This robust solvent-free process operates under an ambient atmosphere and avoids the use of precious
A MOF-5-catalyzed three-componentcouplingreaction was developed as an efficient approach for the synthesis of 2,4-disubstituted quinoline derivatives via a one pot three-componentreaction of aromatic amines, aldehydes and alkynes with excellent yields. The easy recovery and reusability of the catalyst, broad substrate scope, short reaction time, high yields of products and solvent-free conditions