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2023
This chapter provides an engaging overview of Schiff bases, highlighting their versatility in various chemical applications. Covering the synthesis, structural diversity, and multifaceted reactivity of Schiff bases, the introduction delves into their significance in coordination chemistry, bioinorganic systems, and medicinal chemistry.
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This chapter provides an engaging overview of Schiff bases, highlighting their versatility in various chemical applications. Covering the synthesis, structural diversity, and multifaceted reactivity of Schiff bases, the introduction delves into their significance in coordination chemistry, bioinorganic systems, and medicinal chemistry.
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Polymeric Schiff Bases. VI. The Direct Syntheses of Poly-Schiff Bases
Journal of Macromolecular Science: Part A - Chemistry, 1967Abstract The synthesis of black, high molecular weight polymeric Schiff bases directly from aryldiamines and aryldialdehydes by two methods is described. The first method utilizes benzylideneaniline as the reaction medium. The second method is a direct one-step synthesis involving the reaction of the aryldiamine, aryldialdehyde, aniline, and ...
G. F. D'alelio +3 more
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Journal of the Chemical Society, Chemical Communications, 1976
Although very few examples of chemiluminescent Schiff bases have been described, and attempts to extend this class of reaction have hitherto been unsuccessful, it is now shown that these compounds are generally chemiluminescent on oxidation, with reasonable efficiency.
Frank McCapra, Alexander Burford
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Although very few examples of chemiluminescent Schiff bases have been described, and attempts to extend this class of reaction have hitherto been unsuccessful, it is now shown that these compounds are generally chemiluminescent on oxidation, with reasonable efficiency.
Frank McCapra, Alexander Burford
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Schiff base compounds as artificial metalloenzymes
Colloids and Surfaces B: Biointerfaces, 2022Much research has been done on traditional homogeneous metal catalysts and enzymatic catalysts, but recently a new class of hybrid catalysts called synthetic (artificial) metalloenzymes has been considered by researchers. Metalloenzymes as hybrid catalysts (host-guest systems) have been shown that combine the properties of a homogeneous and also ...
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Tetrahedron, 1970
Abstract Various tautomeric forms have been postulated for pyridoxal Schiff bases, including the ring-chain tautomers aldimine ∡ aminoacetal (Ia ∡ Ib). We have found that acylation stabilizes either the aldimine or the aminoacetal form, depending on the structure of the Schiff base and the acylating agent used.
W. Korytnyk, H. Ahrens, N. Angelino
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Abstract Various tautomeric forms have been postulated for pyridoxal Schiff bases, including the ring-chain tautomers aldimine ∡ aminoacetal (Ia ∡ Ib). We have found that acylation stabilizes either the aldimine or the aminoacetal form, depending on the structure of the Schiff base and the acylating agent used.
W. Korytnyk, H. Ahrens, N. Angelino
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A review on applications of chitosan-based Schiff bases
International Journal of Biological Macromolecules, 2019Biopolymers have become very attractive as they are degradable, biocompatible, non-toxic and renewable. Due to the intrinsic reactive amino groups, chitosan is vibrant in the midst of other biopolymers. Using the versatility of these amino groups, various structural modifications have been accomplished on chitosan through certain chemical reactions ...
R, Antony +2 more
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Acid-base equilibrium of the Schiff base in bacteriorhodopsin
Biochemistry, 1982Aqueous suspensions of dark-adapted bacteriorhodopsin (bR560) in the purple membrane of Halobacterium halobium are exposed to rapid jumps to high pH. Optical and resonance Raman measurements are carried out by using flow and stationary methods. Above pH congruent to 11.5 bR560 starts to be reversibly converted to a species absorbing at 460 nm (bR460 ...
S, Druckmann +4 more
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1988
The Schiff base complexes described in this chapter are derived from ligands obtained by the reaction of aldehydes or ketones with amines. Ligation to manganese occurs through the nitrogen atom of the azomethine group (>C=N−), as well as through other functional groups present in the ligand, such as hydroxy and carboxy groups or other groups containing
L. J. Boucher +5 more
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The Schiff base complexes described in this chapter are derived from ligands obtained by the reaction of aldehydes or ketones with amines. Ligation to manganese occurs through the nitrogen atom of the azomethine group (>C=N−), as well as through other functional groups present in the ligand, such as hydroxy and carboxy groups or other groups containing
L. J. Boucher +5 more
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Synthesis of acyclic dinucleating Schiff base-pyridine and schiff base-phosphine ligands
Tetrahedron Letters, 1995Abstract 5-tert-butyl-3-pyridyl-salicyaldehyde and 5-tert-butyl-3-diphenylphosphino-salicyaldehyde have been synthesized from 4-tert-butylphenol in good overall yields. Condensation of the salicyaldehydes with 2,3-diamino-2-3-dimethylbutane afforded the desired dinucleating Schiff base-pyridine and Schiff base-phosphine ligands respectively.
Fung Lam, Kin Shing Chan
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Some aspects of schiff bases of retinaldehyde
Experimental Eye Research, 1974Abstract We have previously described an entity, which we have named Complex II, formed from retinaldehyde (RET) (any isomer) and ethanolamine-phosphoglyceride (EPG) which contains unsaturated fatty acid components. Complex II exhibits a 500-nm absorbance maximum in a spectrum similar to that of mammalian rhodopsin.
R G, Adams +2 more
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