Supported protic acid-catalyzed synthesis of 2,3-disubstituted thiazolidin-4-ones: enhancement of the catalytic potential of protic acid by adsorption on solid supports
Silica chloride (SiO<sub>2</sub>-Cl) catalyzed one pot synthesis of 2,3-disubstituted-thiazolidin-4-one
作者:Kunal M. Gokhale、Vikas N. Telvekar
DOI:10.1080/00397911.2020.1741641
日期:2020.5.2
Abstract In this paper, we report one-pot, three-component cyclo condensation of an aldehyde, an amine and thioglycolic acid to form 2,3-disubstituted-thiazolidin-4-one by using supported protic acid (Silica Chloride: SiO2-Cl) catalyst. The catalyst SiO2-Cl is compatible with a variety of aldehydes (aryl/heteroaryl) and the aromatic amines affording 2,3-disubstituted-thiazolidin-4-one analogs in 72–89%
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.
A visible-light-induced, one-pot mild and efficient, multicomponent-tandem synthesis of diversified 1,3-thiazolidin-4-ones under catalyst and solvent-free conditions is reported. Here, visible-light, an ideal source of energy, has been used as photochemical activator to generate CN and CS bonds under radical mechanistic pathway from aromatic amines, aldehydes and thioglycolic acid. The reported methodology
An efficient three-component synthesis of 1,3-thiazolidin-4-ones is described by one-pot condensation of aldehydes, aniline and thioglycolic acid with nano-CdZr4(PO4)6 as a robust heterogeneouscatalyst under ultrasonic irradiation. Use of simple and readily available starting materials, experimental simplicity, applying the sonochemical methodology as an efficient method and innocuous means of activation
Preparation and characterization of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>/APTPOSS core-shell composite nanomagnetics as a novel family of reusable catalysts and their application in the one-pot synthesis of 1,3-thiazolidin-4-one derivatives
作者:Javad Safaei-Ghomi、Seyed Hadi Nazemzadeh、Hossein Shahbazi-Alavi
DOI:10.1002/aoc.3520
日期:2016.11
The inorganic–organic hybrid polyhedral oligomeric silsesquioxane magneticnanoparticles were used as an efficient new heterogeneous catalyst for the one‐pot three‐component synthesis of 1,3‐thiazolidin‐4‐ones under solvent‐free conditions. Moreover, these nanoparticles could be easily separated using an external magnet and then reused several times without significant loss of catalytic activity. Copyright