Ionic Liquid-Promoted Regiospecific Friedlander Annulation: Novel Synthesis of Quinolines and Fused Polycyclic Quinolines
作者:Sanjay S. Palimkar、Shapi A. Siddiqui、Thomas Daniel、Rajgopal. J. Lahoti、Kumar V. Srinivasan
DOI:10.1021/jo035153u
日期:2003.11.1
Several room-temperature ionic liquids (ILs) based on 1-butylimidazolium salts with varying anions were synthesized and evaluated for the preparation of biologically active substituted quinolines and fused polycyclic quinolines using the Friedlander heteroannulation reaction. On screening, 1-butylimidazolium tetrafluoroborate [Hbim]BF4 was found to be the best ionic liquid for the heteroannulation reaction
Friedländer synthesis of polysubstituted quinolines and naphthyridines promoted by propylphosphonic anhydride (T3P®) under mild conditions
作者:Mouhamad Jida、Benoit Deprez
DOI:10.1039/c2nj21043f
日期:——
A new convenient, efficient and environmentally eco-friendly protocol for Friedländer synthesis of polysubstituted quinolines and naphthyridines is described. A wide variety of new products were readily prepared in the presence of propylphosphonic anhydride (T3P®) in short reaction times and excellent yields under mild conditions.
Gold(III)-Mediated Aldol Condensations Provide Efficient Access to Nitrogen Heterocycles
作者:Herbert Waldmann、Galla V. Karunakar、Kamal Kumar
DOI:10.1021/ol8005634
日期:2008.6.5
Quinolines, dihydroquinolines, and aza-xanthones can be synthesized efficiently and under mild reaction conditions by means of a reaction sequence employing Au(III)-catalyzed aldol reactions as the key step.
Mack, H. Michael; Davis, Everette A.; Kadkhodayan, Babak, Journal of Heterocyclic Chemistry, 1987, vol. 24, p. 1733 - 1740
作者:Mack, H. Michael、Davis, Everette A.、Kadkhodayan, Babak、Taylor, Richard A.、Duncan, Dean C.、Beam, Charles F.
DOI:——
日期:——
Selective palladium-catalyzed amination of β-chloroacroleins by substituted anilines
作者:Stéphanie Hesse、Gilbert Kirsch
DOI:10.1016/j.tet.2005.05.011
日期:2005.7
beta-Chloroacroleins can undergo a selective amination on their chloro position under palladium catalysis; in those conditions, no imine formation was observed. Their coupling with anilines carrying electron-donating or electron-withdrawing substituents proceeds in moderate to good yields and steric hindrance does not seem to be a limitation as o-substituted anilines react readily. (c) 2005 Elsevier Ltd. All rights reserved.