Publications by authors named "Chiamaka Peace Uzoewulu"

Unlabelled: The new compound 4-hydroxy-1-[(4-nitrophenyl)sulfonyl]pyrrolidine-2-carboxyllic acid was obtained by the reaction of 4-hydroxyproline with 4-nitrobenzenesulfonyl chloride. The compound was characterized using single crystal X-ray diffraction studies. Spectroscopic methods including NMR, FTIR, ES-MS, and UV were employed for further structural analysis of the synthesized compound.

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Synthesis of sulfonamide through an indirect method that avoids contamination of the product with no need for purification has been carried out using the indirect process. Here, we report the synthesis of a novel sulfonamide compound, ({4-nitrophenyl}sulfonyl)tryptophan (DNSPA) from 4-nitrobenzenesulphonylchloride and L-tryptophan precursors. The slow evaporation method was used to form single crystals of the named compound from methanolic solution.

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Carbohydrazides and their Schiff bases are important classes of heterocycles that are not only employed in the area of organic chemistry but also have tremendous applications in physical and inorganic chemistry. A series of potentially bioactive compounds containing carbohydrazide functionality and their hydrazone derivatives have been synthesized and screened for antibacterial, anticancer, antifungal and anti-inflammatory, etc. This brief review discloses some synthetic routes to so many reported carbohydrazides, their Schiff bases, their biological activities, and their structure-activity relationship.

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A tripodal Schiff base ligand, 2,4,6-Tris(4-carboxybenzimino)-1,3,5-triazine (MT) and its trinuclear Dy(III), Er(III), and Gd(III) complexes were synthesized. These were characterized using UV-visible, IR, H, and C NMR spectroscopies, elemental analysis, and molar conductivity measurements. The spectral studies indicate that the ligand is hexadentate and coordinates to the Ln(III) ions through the oxygen atoms of the carboxylic group.

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