ChemInform Abstract: Synthesis, Characterization, and Antibacterial Activities of Some New Schiff Base Compounds.

Shah, Shailesh R.; Vyas, R.; Mehta, R. H.

doi:10.1002/chin.199351181

Cited by 3 publications

(3 citation statements)

References 1 publication

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“…Owing to their biological activities such as antifungal, antibacterial, antimycobacterial, antitumor, anti-inflammatory, anti-HIV, leishmanicidal, trypanocidal, inhibitor of anthrax lethal factor, antidiabetic, antimalarial, and antipyretic, there has been an increasing interest towards the studies of the coordination compounds of the Schiff bases containing the hydrazone moiety during the past few decades [1–12]. The coordination compounds containing hydrazone moiety have been reported to act as analytical reagents, such as polymer coatings, fluorescent materials [13, 14], enzymes inhibitors, antifungal/antibacterial agents [15, 16], and corrosion inhibitors [17].…”

Section: Introductionmentioning

confidence: 99%

Syntheses, Spectral Characterization, and Antimicrobial Studies on the Coordination Compounds of Metal Ions with Schiff Base Containing Both Aliphatic and Aromatic Hydrazide Moieties

Kumar

Chadda

Sharma

et al. 2013

Bioinorganic Chemistry and Applications

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An EtOH solution of 3-ketobutanehydrazide and salicylhydrazide on refluxing in equimolar ratio forms the corresponding Schiff base, LH3 (1). The latter reacts with Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Zr(OH)2(IV), MoO2(VI), and UO2(VI) ions in equimolar ratio and forms the corresponding coordination compounds, [M(LH)(MeOH)3] (2, M = Mn, Co, Ni), [Cu(LH)]2 (3), [M′(LH)(MeOH)] (4, M′ = Zn, Cd), [Zr(OH)2(LH)(MeOH)2] (5), [MoO2(LH)(MeOH)] (6), and [UO2(LH)(MeOH)] (7). The coordination compounds have been characterized on the basis of elemental analyses, molar conductance, spectral (IR, reflectance, 1H NMR, ESR) studies, and magnetic susceptibility measurements. They are nonelectrolytes in DMSO. The coordination compounds, except 3, are monomers in diphenyl. They are active against gram-positive bacteria (S. aureus, B. subtilis), gram-negative bacteria (E. coli, P. aeruginosa), and yeast (S. cerevisiae, C. albicans). 1 acts as a dibasic tridentate ONO donor ligand in 2–7 coordinating through its both enolic O and azomethine N atoms. The coordination compounds 2 and 3 are paramagnetic, while rest of the compounds are diamagnetic. A square-planar structure to 3, a tetrahedral structure to 4, an octahedral structure to 2, 6, and 7, and a pentagonal bipyramidal structure to 5 are proposed.

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Section: Introductionmentioning

confidence: 99%

Syntheses, Spectral Characterization, and Antimicrobial Studies on the Coordination Compounds of Metal Ions with Schiff Base Containing Both Aliphatic and Aromatic Hydrazide Moieties

Kumar

Chadda

Sharma

et al. 2013

Bioinorganic Chemistry and Applications

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“…The 1 H NMR Spectra of Schiff base and its complexes were recorded in DMSO (d 6 ). The azomethine proton (-CH=N-) in Schiff base appeared at δ = 8.8 ppm has been shifted to downfield in metal complexes.…”

Section: H Nmr Spectramentioning

confidence: 99%

Synthesis, Characterisation and Antimicrobial Screening of Co(II), Mn(II) Ni(II), Cu(II) and Zn(II) Complexes of Schiff Base Ligand

Rani¹,

R.K.²,

Thara³

2013

Orientjchem.

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“…Derivatives of 4-phenylcoumarin, also known as neoflavones, are a research topic of significant interest. Neoflavones are common in plantsas of today, more than 160 compounds of this class have been obtained from natural sources [1] -and both natural neoflavones and their synthetic analogs demonstrate a wide range of biological activities, including antitumor [2], cytotoxic [3], antioxidant [4], antibacterial [5,6], insecticidal [7], and many others.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and NMR spectroscopy investigations of functionalized spiropyranochromenediones and their spirothiadiazole derivatives

et al. 2021

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This investigation focuses on the synthesis of spiropyranoneoflavones and the modification of obtained compounds at the exocyclic oxygen atom. Kabbe cyclization of 6-acetyl-7‑hydroxy-8-methyl-4-phenyl-2H-chromene-2-one with cyclohexanone or cyclopentanone in the presence of pyrrolidine provided 10-methyl-4-phenyl-2H-spiro[cyclohexane(cyclopentane)-1’,8-pyrano[3,2-g]chromene]-2,6(7H)-diones. Their new functionalized derivatives with thiosemicarbazide residues were synthesized. Acetylation of obtained thiosemicarbazones with acetic anhydride proceeded via cyclization of thiosemicarbazide fragment into 1,3,4-thiadiazole ring to give corresponding N-[3'-acetyl-10-methyl-8-oxo-6-phenyl-3'H,8H-dispiro[cyclohexane-1,2’-pyrano[3,2-g]chromene-4,2'-[1,3,4]thiadiazol]-5'-yl]acetamide and N-[3'-acetyl-10-methyl-8-oxo-6-phenyl-3'H,8H-dispiro[cyclopentane-1,2’-pyrano[3,2-g]chromene-4,2'-[1,3,4]thiadiazol]-5'-yl]acetamide. The structure of the obtained compounds was confirmed by NMR spectroscopy

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ChemInform Abstract: Synthesis, Characterization, and Antibacterial Activities of Some New Schiff Base Compounds.

Cited by 3 publications

References 1 publication

Syntheses, Spectral Characterization, and Antimicrobial Studies on the Coordination Compounds of Metal Ions with Schiff Base Containing Both Aliphatic and Aromatic Hydrazide Moieties

Syntheses, Spectral Characterization, and Antimicrobial Studies on the Coordination Compounds of Metal Ions with Schiff Base Containing Both Aliphatic and Aromatic Hydrazide Moieties

Synthesis, Characterisation and Antimicrobial Screening of Co(II), Mn(II) Ni(II), Cu(II) and Zn(II) Complexes of Schiff Base Ligand

Synthesis and NMR spectroscopy investigations of functionalized spiropyranochromenediones and their spirothiadiazole derivatives

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