Abstract
A highly efficient, one-pot, novel and greener straightforward multi-component approach has been disclosed for the facile synthesis of 5-aryl-4-phenyl-1,2,4-triazolidine-3-thiones from reaction of phenyl isothiocyanate, hydrazine hydrate and diverse aromatic aldehydes/cyclic ketones/isatins in the presence of a novel Lewis acid-surfactant-combined catalyst. High yields, use of ambient temperature and water as a universally accepted green solvent, simple work-up procedure, easy isolation of product, high atom economy makes the present method attractive, sustainable and economical.
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