Synthesis 2024; 56(05): 878-886
DOI: 10.1055/a-2210-6357
paper

Regioselective Synthesis of 2,4- and 2,5-Disubstituted 1,3-Thiazoles from 2-Oxo-2-(amino)ethanedithioates via Base-Catalyzed Cyclization

Krishna Ravi Singh
,
Chikkappaiahnayaka Santhosh
,
Kalleshappa Sheela
,
Authors are grateful to VGST, Government of Karnataka (KSTePS/VGST/K-FIST L1/GRD No.1038/2021-22/427e) for financial support.


Abstract

Facile and efficient methods are reported for the synthesis of 2,4- and 2,5-disubstituted-1,3-thiazoles by the cyclization of 2-oxo-2-(amino)ethanedithioates with TosMIC and α-haloketones in high yields. Key structures were confirmed based on X-ray crystallographic studies. In addition, investigation of ground state geometry, electronic and molecular structural properties, FMOs, global reactivity descriptors, MEP and NCI analyses were predicted to access the information related to the stability, reactivity, and strength of the interactions present in the molecules by quantum chemical calculations. Further, the potency of derivatives was tested against the SARS-Cov2 receptor (PDB ID: 7mc6) via molecular docking approach with binding scores of –6.0 to –8.4 kcal/mol.

Supporting Information



Publication History

Received: 05 September 2023

Accepted after revision: 14 November 2023

Accepted Manuscript online:
14 November 2023

Article published online:
18 December 2023

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