Iodine-Catalyzed, One-Pot, Solid-Phase Synthesis of Benzothiazole Derivatives

Author： Gupta Sayan Dutta   Singh Hemendra Pratap   Moorthy N. S. H. N.  

Publisher： Taylor & Francis Ltd

ISSN： 0039-7911

Source： Synthetic Communications, Vol.37, Iss.24, 2007-01, pp. : 4327-4329

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Abstract

Molecular iodine was utilized in a one-pot, solid-phase, solvent-free reaction between 2-aminothiophenol and benzoic acid derivatives to obtain highly economical and excellent yield of benzothiazole derivatives in comparison to polyphosphoric acid- and [pmIm]-Br-catalyzed microwave synthesis reactions. The results of the studies revealed that the new method reduces cost by approximately 17-fold in comparison to polyphosphoric acid and has a significant cost reduction in comparison to [pmIm]-Br. Moreover, it becomes even more economical because no additional chemicals and solvents are necessary for the reaction.

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