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Vol. 30 No. 1 (2018): Vol 30 Issue 1

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Di-cationic Ionic Liquid Catalyzed Synthesis of 1,5-Benzothiazepines

https://doi.org/10.14233/ajchem.2018.20920
Raghavendra Sakirolla
Department of Chemistry, Central University of Karnataka, Kadaganchi, Aland Road, Kalaburagi-585 367, India
Krishnaji Tadiparthi
Department of Chemistry, Christ University, Hosur Road, Bangalore-560 029, India
Marzieh Yaeghoobi
Department of Chemistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
Noorsaadah Abd. Rahman
Department of Chemistry, University of Malaya, 50603, Kuala Lumpur, Malaysia

Corresponding Author(s) : Raghavendra Sakirolla

srgoud2@gmail.com

Asian Journal of Chemistry, Vol. 30 No. 1 (2018): Vol 30 Issue 1

Abstract

A simple and elegant method for the synthesis of 1,5-benzothiazepines has been developed using di-cationic liquid as a solvent cum catalyst by the reaction of o-aminothiophenol with a variety of chalcones under mild reaction conditions. Furthermore the reusability of the catalyst has also been studied for three cycles. All the reactions are proposed to proceed through a 1,4-conjugate Michael addition followed by a cyclo-condensation reaction.

Keywords

gem-Dicationic ionic liquids 1,5-Benzothiazepines 1,5-Benzodiazepines Cyclo-condensation reaction Reusability
Sakirolla, R., Tadiparthi, K., Yaeghoobi, M., & Rahman, N. A. (2017). Di-cationic Ionic Liquid Catalyzed Synthesis of 1,5-Benzothiazepines. Asian Journal of Chemistry, 30(1), 107–115. https://doi.org/10.14233/ajchem.2018.20920
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