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.
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.
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.