作者:P. Prabhakara Varma、Aswathnarayana Srinivasa、Kittappa M. Mahadevan
DOI:10.1080/00397911003650453
日期:2011.8
Abstract Various cis-2-methyl-4-amido-1,2,3,4-tetrahydroquinoline derivatives were synthesized efficiently by reacting aromatic amines and N-vinyl caprolactam or N-vinyl pyrrolidone in the presence of indium trichloride in an aqueous medium in good to excellent yields. These 2,4-disubstituted tetrahydrouinolines showed cis diastereoselectivity.
FeCl<sub>3</sub>-Catalyzed Synthesis of 2-Methyl-4-Substituted-1,2,3,4-Tetrahydroquinoline Derivatives by the Imino Diels-Alder Reaction
作者:Ye Chen、Yong-Rok Lee
DOI:10.5012/bkcs.2011.32.7.2485
日期:2011.7.20
Use of iodine doped polyaniline salt in the stereoselective synthesis of 2-methyl-4-substituted-1,2,3,4-tetrahydroquinoline derivatives
作者:Rajender Boddula、Palaniappan Srinivasan
DOI:10.1016/j.catcom.2012.11.002
日期:2013.1
Polyaniline-iodine salt is proved as a simple, efficient, versatile, recyclable and eco-friendly polymer based solid acid catalyst in the reaction between aromatic amines and N-vinyl pyrrolidone/N-vinyl caprolactam under solvent free condition. Polyaniline salts such as polyaniline-sulfate, polyaniline-hydrochloride and polyaniline-perchlorate are also catalyzing this reaction smoothly. (c) 2012 Elsevier B.V. All rights reserved.
Simple entry to new 2-alkyl-1,2,3,4-tetrahydroquinoline and 2,3-dialkylquinoline derivatives using BiCl3-catalyzed three component reactions of anilines and aliphatic aldehydes in the presence (or lack) of N-vinyl amides
作者:Vladimir V. Kouznetsov、Carlos M. Meléndez Gómez、Fernando A. Rojas Ruíz、Esther del Olmo
DOI:10.1016/j.tetlet.2012.04.008
日期:2012.6
A general protocol for the simple and efficient synthesis of 2-alkyl-1,2,3,4-tetrahydroquinolines and 2,3-dialkylquinolines was reported. Synthetic protocol describes the one-pot preparation of these tetrahydroquinoline and quinoline products using the same reagents (aliphatic aldehydes and anilines) in the BiCl3-catalyzed multicomponent condensation process where the third component, N-vinyl amide is present. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis of 1-(2-Methyl-1,2,3,4-tetrahydroquinolin-4-yl) pyrrolidin-2-ones from Anilines and<i>N</i>-Vinyl Pyrrolidin-2-one Through Imino Diels–Alder Reaction Using 4-Nitro Phthalic Acid as Catalyst
作者:Aswathanarayana Srinivasa、Kittappa M. Mahadevan、Vijaykumar Hulikal
DOI:10.1080/00397910802369653
日期:2008.12.16
Aryl amines react smoothly and efficiently with N-vinyl pyrrolidin-2-one in the presence of 4-nitro phthalic acid in acetonitrile to afford the corresponding 1-(2-methyl-1,2,3,4-tetrahydroquinolin-4-yl) pyrrolidin-2-ones in good yields.