Results 211 to 220 of about 16,360 (266)

The Significance of the Imidazole Ring in Anticonvulsant Activity of (Arylalkyl)imidazoles

Archiv der Pharmazie, 1988
AbstractThe imidazole ring in nafimidone [1‐(2‐naphthyl)‐2‐(1‐imidazolyl)ethanone] was substituted with various groups to investigate the significance of the imidazole ring in anticonvulsant activity. For this purpose, some 2‐acetylnaphthalene derivatives and their reduction products were synthesized. Several N‐alkylation methods were used to prepare 2‐
U, Caliş, S, Dalkara, M, Ertan, R, Sunal   +3 more
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Stimulation of glycolysis by imidazole

Life Sciences, 1973
Abstract Imidazole stimulated glycolysis by rat diaphragm homogenates; this effect increased as the concentration of imidazole was raised. The simultaneous changes in concentration of some of the glycolytic intermediates suggested an action of imidazole at a step between triose phosphate and pyruvate.
R, Parvin, N, Kalant
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Condensation of mononucleotides by imidazole

Journal of Molecular Evolution, 1971
The condensation of thymidine-5′-monophosphate was carried out in the presence of imidazole in aqueous solutions at neutral pH. Formation of oligo-deoxyribonucleotides up to four units was observed.
J D, Ibanez, A P, Kimball, J, Oró
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Metal imidazolate sulphate frameworks as a variation of zeolitic imidazolate frameworks

Chemical Communications, 2022
Both imidazolate and sulphate ions can connect metal ions to give extended structures resembling zeolitic imidazolate frameworks.
Kyungkyou Noh, Jaeung Sim, Jonghoon Kim, Jaheon Kim   +3 more
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Imidazole–imidazole stacking in some inorganic complexes

Inorganica Chimica Acta, 2009
Abstract Reaction of CuCl2 · 2H2O with the 1:1 condensate (L) of 2-(2-aminoethyl)pyridine and 1-methyl-2-imidazolecarboxaldehyde in methanol yields monomeric CuLCl2.H2O (1). Recrystallisation of 1 from aqueous methanol medium containing excess of PF 6 − affords the 1D coordination polymer [CuLCl]n(PF6)n (2).
Senjuti De, Michael G.B. Drew, Núria Aliaga-Alcalde, Dipankar Datta   +3 more
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Imidazole: Fungitoxic Derivatives

Science, 1967
Study of several new types of fungitoxic derivatives of imidazole reveals that imidazoles substituted on the imine nitrogen atom are likely to be active if the substituent is electron-attracting, and if the atom connecting it to the imidazolyl moiety has tetrahedral geometry.
H, Tolkmith, J N, Seiber, P B, Budde, D R, Mussell   +3 more
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Synthesis of difluoromethylthio imidazole from methylthio imidazole

Journal of Fluorine Chemistry, 1996
Abstract Demethylation of methylthio imidazole 1 via a Pummerer rearrangement onto the corresponding sulfoxide 2 afforded imidazole thiol 4 which was then difluoromethylated with the sodium chlorodifluoroacetate/NaI system in 71% overall yield.
Pierre Deprez, Jean-Paul Vevert
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Superelectrophilic Chemistry of Imidazoles

The Journal of Organic Chemistry, 2009
The mechanistic and synthetic chemistry of imidazole-based superelectrophiles has been studied. The protonated imidazole ring, or imidazolium group, is shown to enhance the electrophilic reactivity of an adjacent carboxonium group (compared to a related monocationic species).
Matthew R, Sheets, Ang, Li, Edward A, Bower, Andrew R, Weigel, Matthew P, Abbott, Robert M, Gallo, Adam A, Mitton, Douglas A, Klumpp   +7 more
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Structure of imidazole methemoglobin

Journal of Molecular Biology, 1981
Abstract Crystals of horse methemoglobin shatter when soaked in crystallization buffer containing high concentrations of imidazole. By using less than saturating concentrations of imidazole, a stable imidazole derivative of crystalline methemoglobin was prepared and analyzed by X-ray difference Fourier techniques.
J A, Bell, Z R, Korszun, K, Moffat
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Zeolite A imidazolate frameworks

Nature Materials, 2007
Faujasite (FAU) and zeolite A (LTA) are technologically important porous zeolites (aluminosilicates) because of their extensive use in petroleum cracking and water softening. Introducing organic units and transition metals into the backbone of these types of zeolite allows us to expand their pore structures, enhance their functionality and access new ...
Hideki, Hayashi, Adrien P, Côté, Hiroyasu, Furukawa, Michael, O'Keeffe, Omar M, Yaghi   +4 more
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