Results 41 to 50 of about 92,456 (380)

Metabolism of Imidazole by a Pseudomonad [PDF]

open access: yesJournal of Bacteriology, 1971
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
openaire   +3 more sources

Thermal and mechanical stability of zeolitic imidazolate frameworks polymorphs [PDF]

open access: yesAPL Materials, 2, 124110 (2014), 2014
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

Synthesis and photophysical properties of benzoxazolyl-imidazole and benzothiazolyl-imidazole conjugates

open access: yesRSC Advances, 2021
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
openaire   +3 more sources

Identification and characterization of aging products in the glyoxal/ammonium sulfate system – implications for light-absorbing material in atmospheric aerosols [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
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

open access: yesHeterocyclic Communications
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
doaj   +1 more source

Base-Promoted Annulation of Amidoximes with Alkynes: Simple Access to 2,4-Disubstituted Imidazoles

open access: yesMolecules, 2020
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
doaj   +1 more source

Nano-SbCl5/SiO2 as an Efficient Catalyst for One-Pot Synthesis of 2, 4, 5-Trisubstituted Imidazoles Under Solvent- Free Condition [PDF]

open access: yesJournal of Nanostructures, 2012
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
doaj   +1 more source

Preparation and Characterization of NiCoFe2O4 Nanoparticles as an Effective Catalyst for the Synthesis of Trisubstituted Imidazole Derivatives Under Solvent-free Conditions

open access: yesActa Chimica Slovenica, 2022
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
doaj   +1 more source

Dielectric study on mixtures of ionic liquids [PDF]

open access: yesScientific Reports 7, 7463 (2017), 2017
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]

open access: yesPostgraduate Medical Journal, 1979
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.
openaire   +3 more sources

Home - About - Disclaimer - Privacy