Results 41 to 50 of about 92,456 (380)
Metabolism of Imidazole by a Pseudomonad [PDF]
Intermediates formed during the microbial degradation of imidazole, namely 4(5)-imidazolone, formiminoglycine, and possibly glycine, are similar to those formed during metabolism of imidazole derivatives.
Lemuel D. Wright, Helen G. Oien
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Thermal and mechanical stability of zeolitic imidazolate frameworks polymorphs [PDF]
Theoretical studies on the experimental feasibility of hypothetical Zeolitic Imidazolate Frameworks (ZIF) have focused so far on relative energy of various polymorphs, by energy minimization at the quantum chemical level. We present here a systematic study of stability of 18 ZIFs as a function of temperature and pressure, by molecular dynamics ...
arxiv +1 more source
The effect of heteroatoms on the structural and photophysical properties of donor-π-acceptor molecules, comprising imidazole and benzoxazolyl as well as imidazole and benzothiazolyl units, was investigated.
Hsing-Yu Chen+5 more
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Identification and characterization of aging products in the glyoxal/ammonium sulfate system – implications for light-absorbing material in atmospheric aerosols [PDF]
In this study we report the identification of bicyclic imidazoles in aqueous aerosol mimics using HPLC-ESI-MS/MS. 2,2'-Biimidazole was identified to be a major contributor to the 280 nm absorbance band observed in mixtures of glyoxal and ammonium sulfate,
C. J. Kampf, R. Jakob, T. Hoffmann
doaj +1 more source
Current progress in the synthesis of imidazoles and their derivatives via the use of green tools
Imidazoles have a unique position in heterocyclic chemistry as these constitute the basic framework of several bio-molecules. Thus, increasing research is being carried out on the synthesis of imidazoles and their derivatives, mainly because of the ...
Saha Debasree, Mukhopadhyay Chhanda
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Base-Promoted Annulation of Amidoximes with Alkynes: Simple Access to 2,4-Disubstituted Imidazoles
An efficient construction of imidazole ring by a Cs2CO3-promoted annulation of amidoximes with terminal alkynes in DMSO has been developed. This protocol provides a simple synthetic route with high atom-utilization for the synthesis of 2,4-disubstituted ...
Hina Mehmood+3 more
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Nano-SbCl5/SiO2 as an Efficient Catalyst for One-Pot Synthesis of 2, 4, 5-Trisubstituted Imidazoles Under Solvent- Free Condition [PDF]
A general synthetic route to the synthesis of imidazoles has been developed using nano SbCl5/SiO2 under solvent-free conditions. The multi-component reactions of aldehydes, benzil and ammonium acetate were carried out to afford some trisubstituted ...
A. Bamoniri, S. Rohani
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In this study, NiCoFe2O4 nanoparticles were prepared and used as a reactive catalyst for the synthesis of trisubstituted imidazoles. The multicomponent reactions of aromatic aldehydes, benzil and ammonium acetate were carried out under solvent-free and ...
Leila Hemmesi, Hossein Naeimi
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Dielectric study on mixtures of ionic liquids [PDF]
Ionic liquids are promising candidates for electrolytes in energy-storage systems. We demonstrate that mixing two ionic liquids allows to precisely tune their physical properties, like the dc conductivity. Moreover, these mixtures enable the gradual modification of the fragility parameter, which is believed to be a measure of the complexity of the ...
arxiv +1 more source
Pharmacokinetics of imidazole antimycotics [PDF]
Summary According to data on the imidazole antimycotics at present on the market, none of these products satisfactorily fills the gaps which exist in the treatment for mycoses of internal organs, although they have brought considerable progress in the topical treatment of mycoses.
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