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Vol. 30 No. 7 (2018): Vol 30 Issue 7

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Chitosan-SO3H: A Green Approach to 2-Aryl/Heteroaryl Benzothiazoles under Solvent-Free Conditions at Room Temperature

https://doi.org/10.14233/ajchem.2018.21209
Surendra Bose Bathula
Chemistry Division, Institute of Science and Technology, JNT University, Kukatpally, Hyderabad-500 072, India; Alekhya Drugs Pvt. Ltd, Plot No: 145-150, IDA-Kondapalli, Ibrahimpatnam, Vijayawada-521 228, India
Mukkanti Khagga
Chemistry Division, Institute of Science and Technology, JNT University, Kukatpally, Hyderabad-500 072, India
Hariharakrishnan Venkatasubramanian
RA Chem Pharma Ltd., Plot No. 26 & 27, Technocrats Industrial Estate, Balanagar, Hyderabad-500 037, India

Corresponding Author(s) : Surendra Bose Bathula

surendrabose.bathulajntuh@gmail.com

Asian Journal of Chemistry, Vol. 30 No. 7 (2018): Vol 30 Issue 7

Abstract

An efficient green protocol have been developed for the synthesis of 2-aryl/heteroaryl benzothiazole derivatives by intramolecular cyclocondensation of 2-mercaptoaniline with various substituted aryl/heteroaryl aldehydes using chitosan-SO3H as an efficient biocompatible and reusable heterogenous solid acid catalyst in presence of air under solvent free conditions at room temperature. 1H NMR and 13C NMR spectra recorded are in agreement with the reported data.

Keywords

Green synthesis Chitosan-SO3H Benzothiazoles Intramolecular cyclocondensation Solvent-free condition
Bathula, S. B., Khagga, M., & Venkatasubramanian, H. (2018). Chitosan-SO3H: A Green Approach to 2-Aryl/Heteroaryl Benzothiazoles under Solvent-Free Conditions at Room Temperature. Asian Journal of Chemistry, 30(7), 1512–1516. https://doi.org/10.14233/ajchem.2018.21209
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