Regioselective Synthesis of Pyrazolo[1,5-a]pyridine via TEMPO-Mediated [3 + 2] Annulation-Aromatization of N-Aminopyridines and α,β-Unsaturated Compounds.
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DOI: 10.1021/acs.orglett.2c00035
Abstract: A TEMPO-mediated [3 + 2] annulation-aromatization protocol for the preparation of pyrazolo[1,5-a]pyridines from N-aminopyridines and α,β-unsaturated compounds was developed. The procedure offered multisubstituted pyrazolo[1,5-a]pyridines in good to excellent yield with high and predictable regioselectivity. The… read more here.
Keywords: annulation aromatization; aminopyridines unsaturated; tempo mediated; unsaturated compounds ... See more keywords
Computational exploration of copper catalyzed vinylogous aerobic oxidation of unsaturated compounds
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DOI: 10.1038/s41598-020-80188-2
Abstract: Selective oxidation is one of the most important and challenging transformations in both academic research and chemical industry. Recently, a highly selective and efficient way to synthesize biologically active γ-hydroxy-α,β-unsaturated molecules from Cu-catalyzed vinylogous aerobic… read more here.
Keywords: oxidation; vinylogous aerobic; oxidation unsaturated; aerobic oxidation ... See more keywords
Sustainable synthesis of biomass-derived carbon quantum dots and their catalytic application for the assessment of α,β-unsaturated compounds
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DOI: 10.1039/d2ra05201f
Abstract: Herein, we demonstrate a simple, reproducible, and environment-friendly strategy for the synthesis of carbon quantum dots (CQDs) utilizing the mango (Mangifera indica) kernel as a renewable green carbon source. Various analytical tools characterized the as-prepared… read more here.
Keywords: quantum dots; assessment unsaturated; chemistry; carbon quantum ... See more keywords