Results 121 to 130 of about 1,538 (160)

A novel method for the synthesis of 2-imidazolones

Tetrahedron Letters, 2010
Abstract The superoxide ion electrochemically generated by reduction of oxygen, or chemically generated by dissolving potassium superoxide in ionic liquids, reacts with alkyl imidazolium cations of imidazolium-based ionic liquids at room temperature and atmospheric pressure to give the corresponding 2-imidazolones in excellent yields.
AlNashef, I.M., Hashim, M.A., Mjalli, F.S., Ali, M.Q.Al-haj., Hayyan, M.   +4 more
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ChemInform Abstract: IMIDAZOLONE 3. MITT. DIE ACYLIERUNGSREAKTIONEN 2,5(4)‐SUBSTITUIERTER IMIDAZOLONE‐4(5)

Chemischer Informationsdienst. Organische Chemie, 1971
AbstractBei der Acylierung der substituierten Imidazolone (I) entstehen in Abhängigkeit vom Reaktionsmedium, vom Acylierungsmittel und von den Substituenten am Imidazolonring verschiedene Acylierungsprodukte (II)‐(V).
YU. YA. USAEVICH, I. KH. FEL'DMAN, E. I. BOKSINER   +2 more
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Methylidene-imidazolone: a novel electrophile for substrate activation

Current Opinion in Chemical Biology, 2001
The recent three-dimensional structure of histidine ammonia-lyase revealed that the enzyme contains a 3,5-dihydro-5-methylidene-4H-imidazol-4-one (MIO) ring, which forms autocatalytically from an Ala-Ser143-Gly triad. This novel prosthetic group, which is also present in phenylalanine ammonia-lyase, activates substrates by electrophilic interaction ...
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ChemInform Abstract: Imidazolones in the Reaction with Acylacetylenes.

Chemischer Informationsdienst, 1986
AbstractBenzimidazolon (I) reagiert mit den Acylacetylenen (II) zu den N,N‐Bis‐ Addukten (III), während aus 4,5‐Diphenylimidazolon (IV) und (II) Gemische der Mono‐ und Bis‐Addukte (V) und (VI) entstehen.
G. G. SKVORTSOVA, L. V. ANDRYANKOVA, N. D. ABRAMOVA   +2 more
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Imidazolones

Chemistry of Heterocyclic Compounds, 1971
Yu. Ya. Usaevich, I. Kh. Fel'dman, E. I. Boksiner   +2 more
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A Phosphine-Catalyzed Preparation of 4-Arylidene-5-imidazolones

The Journal of Organic Chemistry, 2014
A simple and efficient method for constructing 4-arylidene-5-imidazolones was developed using a phosphine-catalyzed tandem umpolung addition and intramolecular cyclization of amidine pronucleophiles on arylpropiolates. The reaction offers a robust route to heterocycle analogues of the fluorescent protein chromophores.
Sandra, Gabillet, Olivier, Loreau, Simon, Specklin, Evelia, Rasalofonjatovo, Frédéric, Taran   +4 more
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Design, Synthesis, Biological Evaluation and In-silico Docking Studies of Some Novel Imidazolone Derivatives As Potent Antimicrobial Containing Fluorine Agents

Analytical Chemistry Letters, 2021
Desai Nisheeth, Medha Pandya
exaly  

Synthesis, In Silico Prediction and In Vitro Evaluation of Antimicrobial Activity, DFT Calculation and Theoretical Investigation of Novel Xanthines and Uracil Containing Imidazolone Derivatives

International Journal of Molecular Sciences, 2021
Ashraf El-Sayed, Wael Zordok, Samar Elkalyoubi   +2 more
exaly  

Cyclization of Propynylureas to 2-Imidazolones

The Journal of Organic Chemistry, 1963
P. J. Stoffel, A. J. Speziale
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Synthesis of C2-Substituted Imidazolones

Synfacts, 2020
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