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Development of Novel One-Pot Multicomponent Reactions for the Synthesis of Bioactive Sulphur Heterocycles

Authors: Mr. Rahul Balajirao Jadhav; Dr. Sandeep Vishwanathrao Shinde;

Development of Novel One-Pot Multicomponent Reactions for the Synthesis of Bioactive Sulphur Heterocycles

Abstract

Background: The development of efficient, reproducible, and environmentally benign protocols for the synthesis of bioactive heterocycles is desirable, particularly in resource- limited places. Due to its structural properties and synthetic availability, SH-01 was identified as a novel molecule with putative pharmacological interest. Several studies in the past have iteratively elaborated on solvent polarity, while some have focused on catalytic systems responsible for altering the course of a reaction, but a few have related them to remote and semi-urban laboratories. Objectives: This study sought to (i) optimize the yield of SH-01 using different solvent–catalyst systems; ii) confirm its structure via IR and NMR spectroscopy; and iii) develop a field-appropriate ethical synthesis protocol suitable for collaborative deployment. Methods: SH-01 was synthesized in the presence of various solvents and catalysts (ethanol- ZnCl 2, DMSO-FeCl 3, and toluene-Cu (OAc) 2). Read out and you get a reaction yield comparison. The IR spectroscopy was used for functional groups analysis, and the ^1H NMR was utilized for proton environment and structural confirmation. All data were by genuine and verifiable literature that was analysed humanely. Results: The highest conversion in this test was that of ethanol–ZnCl2, showing excellent catalytic activation and solvent compatibility. IR spectra showed NH and CN stretching at 3320 cm⁻¹ and 2200 cm⁻¹, respectively. The NMR analysis showed the presence of aromatic proton signals (7.2–7.8 ppm) and a deshielded NH peak at 9.5 ppm, indicating an intramolecular hydrogen bonding [54]. The synthesis could be easily replicated at the field level and is reproducible. Conclusion: SH-01 was successfully synthesized, and the determined structure was deemed legitimate with green, easily available reagents. This opens up a scalable and socially responsible route to rural chemistry labs using ethanol–ZnCl₂ as the solvent system. These findings can serve as evidence for solvent–catalyst synergy and participatory design in green chemistry studies, and encourage future bioactivity screening and community-initiated education.

Keywords

SH-01 synthesis, solvent–catalyst effect, IR spectroscopy, NMR analysis, green chemistry, rural deployment, participatory research

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green