Articles written in Journal of Chemical Sciences
Volume 129 Issue 12 December 2017 pp 1883-1891 REGULAR ARTICLE
Aqueous formic acid (37%) as a green organocatalystwas used to synthesis of α-aminophosphonates in one-pot, three-component Kabachnik–Fields reaction. The structures of compounds were determined by FTIR, ¹H-NMR and ¹³C-NMR spectroscopy. After optimization of the experimental conditions, the reaction was carried out at 65 ◦C under solvent- free condition. Use of a nontoxic effective organocatalyst, easy work up process and low-cost cleaning procedure are from the main advantages of this research.
Volume 130 Issue 8 August 2018 Article ID 0114
The reaction of 2-hydroxy-5-(pyridine-4-yldiazenyl)benzaldehyde with n-alkyl bromides generated five novel azo pyridinium salts in good to excellent yields. The 1 H and 13 C NMR and UV-Vis absorption spectra indicated several tautomers for the new compounds. The NMR, UV-Vis absorption spectra and quantum chemical calculations show that the azo pyridinium salts have a new resonant structure compared to the corresponding azo precursor. Antibacterial activity was studied by disc diffusion and MIC methods. Diphenylpicrylhydrazyl(DPPH) assay was used to determine the antioxidant properties. The effects of carbon chain length on antimicrobial activity were also investigated. The results showed that existence of alkyl groups is crucial for the antibacterial properties. The new compound with decyl group displayed the best antibacterial activity.
Volume 134, 2022
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