1. Conditions were established for the reaction of retinal with phosphatidylethanolamine, phosphatidylserine, ethanolamine and serine in chloroform, ethanol or ethanol-water solutions to form retinylidene compounds, or Schiff bases. 2. The Schiff bases were reduced to retinyl compounds with sodium borohydride. 3. Absorption maxima and molar extinction coefficients were determined for the variou...

Our recent work displays the successful preparation of Schiff_bases that carried out between hexane-2,5-dione and 2 moles (Z)-3-hydrazineylideneindolin-2-one forming in Schiff-bases-(L), Which turn allowed combining with each next metal ions: (M2+) = Ni, Mn, Zn, Cu Co complexes_ high stability. The formation resulting Schiff_ bases (L) is detected spectrally using LC_Mss which gave approximatel...

Schiff bases are versatile ligands which are synthesized from the condensation of an amino compound with carbonyl compounds. These compounds and their metal complexes are very important as catalysts in various biological systems, polymers, dyes and medicinal and pharmaceutical fields. Their use in birth control, food packages and as an O2 detector is also outlined. This review summarizes the ap...

Eight new Schiff bases of 5-nitro and 5-bromo-substituted 1,10-phenanthroline-2,9-dicarboxaldehydes with sulfur-containing amines, thiosemicarbazide, S-alkyl/aryl dithiocarbazates and 2-mercaptoaniline have been synthesized and characterized by a variety of spectroscopic methods. The condensation reactions of the dialdehydes with the amines were carried out both in the presence and absence of c...

The antifungal and antibacterial investigations were carried out of some Schiff bases obtained by condensation of di-methyl amino benzaldehyde and fluoro, bromo, nitro, methyl, methoxy and ethoxy substituted anilenes. The aforementioned studies were also carried out after complexing the above compounds with certain metals Co, Ni, Rh, Os, Pt. The results reveal that some of the compounds show si...

A family of Schiff bases was synthesized by the reactions of o-aminobenzoic acid and Knovenegal condensate of β-ketoesters in 1:1 ratio. The newly synthesized Schiff bases were characterized by Elemental analyses and spectral (FT-IR, UV–Vis and H-NMR) studies and the structures have been proposed tentatively. These compounds were subjected to study their biocidal efficacy against S. epidermidis...

In the context of the dangerous phenomenon of fungal resistance to the available therapies, we present here the chemical synthesis of a new series of thiazolyl-triazole Schiff bases B1-B15, which were in vitro assessed for their anti-Candida potential. Compound B10 was found to be more potent against Candida spp. when compared with the reference drugs Fluconazole and Ketoconazole. A docking stu...

Novel polystrene-bound Schiff bases and their Pt(IV) complexes have been prepared from condensation reaction of polystyrene-A-NH2 with 2-hydroxybenzaldehyde and 5-fluoro-3bromo-2-hydroxybenzaldehyde. The structures of Pt(IV) complexes with polystyrene including Schiff bases have been determined by elemental analyses, magnetic susceptibility, IR, H-NMR, UV-vis, TG/DTA and AAS. The antibacterial ...

In the title complex, [Zn(C(13)H(16)NOS(2))(2)], the Zn(II) ion is four-coordinated by two N,O-bidentate Schiff base ligands, resulting in a distorted trans-ZnN(2)O(2) square-planar geometry for the metal ion.

In the title compound, [Ni(C(13)H(11)N(2)O)(H(2)O)]NO(3)·H(2)O, the Ni(II) ion is coordinated by one O atom and two N atoms of the Schiff base ligand and the O atom from a water mol-ecule, forming a slightly distorted square-planar geometry. A one-dimensional double-chain structure is formed along [001] by O⋯H-O hydrogen bonds and the Ni⋯O [2.617 (3) Å] inter-actions.