An ionic liquid mediated one-pot synthesis of substituted thiazolidinones and benzimidazoles
作者:Ashok K. Yadav、Manoj Kumar、Tripti Yadav、Renuka Jain
DOI:10.1016/j.tetlet.2009.06.091
日期:2009.9
An expeditious one-pot synthesis of 2,3-diaryl/2-aryl-3-heteroaryl-1,3-thiazolidin-4-ones and 1-aryl-1H,3H-thiazolo[3,4-a]benzimidazoles have been accomplished by condensing hetero/aromatic amine, 2-mercaptoacetic acid, aromatic aldehyde and 1,2-phenylenediamine, 2-mercaptoacetic acid and aromatic aldehyde, respectively, in ionic liquids, viz, 1-butyl-3-methyl-imidazolium tetra fluoroborate and 1-methoxyethyl-3-methylimidazolium trifluoroacetate. (C) 2009 Elsevier Ltd. All rights reserved.
β-Cyclodextrin-SO3H-catalyzed facile and highly efficient synthesis of 4-thiazolidinones under solvent free conditions
作者:Mahendra A. Chaudhari、Jitendra B. Gujar、Deepak S. Kawade、Pravin V. Shinde、Murlidhar S. Shingare
DOI:10.1007/s11164-015-2010-9
日期:2015.12
A one-pot, multi-component, green, and highly efficient procedure has been developed for synthesis of 4-thiazolidinones. Use of β-cyclodextrin-SO3H as an eco-friendly and recyclable catalyst resulted in excellent yields under solvent-free conditions. This procedure has the advantages of readily available starting materials, short reaction times, high yields, easy workup, broad substrate scope, and use of an environment-friendly catalyst. The catalyst can be recycled with slight loss of its catalytic activity.