Results 21 to 30 of about 92,456 (380)

Electron impact partial ionization cross sections: R-carvone, 2-butanol, imidazole, and 2-nitroimidazole [PDF]

open access: yes, 2023
We theoretically calculate the electron impact partial and total ionization cross sections of R-carvone $(\mathrm{C_{10}H_{14}O})$, 2-butanol $(\mathrm{C_{4}H_{10}O})$, imidazole $(\mathrm{C_3H_4N_2})$ and 2-nitroimidazole $(\mathrm{C_3H_3N_3O_2})$. We have used the Binary Encounter Bethe (BEB) model to obtain the total electron impact ionization cross
arxiv   +1 more source

ChemInform Abstract: DERIVATIVES OF IMIDAZOLE

open access: yesChemischer Informationsdienst, 1975
AbstractUnter Anwendung bekannter Wege werden verschiedene in Tabellen aufgeführte Imidazole hergestellt.
S. K. Mahapatra, M. Patra, Byomkesh Dash
openaire   +3 more sources

Syntheses of polyalkylated imidazoles

open access: yesSynthetic Communications, 2017
We have developed improved general simple methods for large-scale preparation of polyalkylated imidazoles by improved multicomponent synthesis from commercially available starting materials. A large range of NH- and N-alkyl-polyalkylimidazoles (40 in total, including novel compounds) has been synthesized.
Sigvart Evjen, Anne Fiksdahl
openaire   +2 more sources

Exploration of Benzenesulfonamide-Bearing Imidazole Derivatives Activity in Triple-Negative Breast Cancer and Melanoma 2D and 3D Cell Cultures

open access: yesPharmaceuticals, 2021
Heterocyclic compounds are one of the main groups of organic compounds possessing wide range of applications in various areas of science and their derivatives are present in many bioactive structures. They display a wide variety of biological activities.
Benas Balandis   +2 more
doaj   +1 more source

Synthesis of imidazoles promoted by H3PW12O40-amino-functionalized CdFe12O19@SiO2 nanocomposite

open access: yesNanocomposites, 2020
H3PW12O40-amino-functionalized CdFe12O19@SiO2 nanocomposite has been applied as an effective nanocatalyst for the preparation of imidazoles by three-component reactions of benzil, ammonium acetate, and benzaldehydes under solvent-free condition ...
Javad Safaei-Ghomi   +2 more
doaj   +1 more source

Use of DNA‐alkylating pyrrole‐imidazole polyamides for anti‐cancer drug sensitivity screening in pancreatic ductal adenocarcinoma

open access: yesCancer Medicine, 2023
Background Activating mutations of the KRAS occurs in >90% of pancreatic ductal adenocarcinoma (PDAC) cases. However, direct pharmacological targeting of the activated KRAS protein has been challenging.
Akiko Tsujimoto   +10 more
doaj   +1 more source

Synthesis of Novel Benzenesulfonamide-Bearing Functionalized Imidazole Derivatives as Novel Candidates Targeting Multidrug-Resistant Mycobacterium abscessus Complex

open access: yesMicroorganisms, 2023
Infections caused by drug-resistant (DR) Mycobacterium abscessus (M. abscessus) complex (MAC) are an important public health concern, particularly when affecting individuals with various immunodeficiencies or chronic pulmonary diseases.
Benas Balandis   +8 more
doaj   +1 more source

Crystal structure of 1-methyl-2-[(E)-2-(4-methylphenyl)ethenyl]-4-nitro-1H-imidazole

open access: yesActa Crystallographica Section E, 2014
In the title molecule, C13H13N3O2, the planes of the benzene and imidazole rings form a dihedral angle of 7.72 (5)°. In the crystal, molecules are linked by weak C—H...N and C—H...O hydrogen bonds, forming layers parallel to (100).
Hayette Alliouche   +4 more
doaj   +1 more source

Metal-Free Eliminative C-H Arylthiolation of 2H-Imidazole N-Oxides with Thiophenols

open access: yesChemistry, 2023
A synthetic strategy based on reactions of cyclic imine oxides, namely 2H-imidazole 1-oxides, with thiophenols mediated by acetyl chloride was successfully applied as a convenient tool to obtain a series of novel azaheterocyclic molecules, including ...
Egor A. Nikiforov   +5 more
doaj   +1 more source

Tannic acid Catalyzed an Efficient Synthesis of 2,4,5-Triaryl-1H-Imidazole

open access: yesOrbital: The Electronic Journal of Chemistry, 2013
Tannic acid (C76H52O46) has been found to be an efficient catalyst for one-pot synthesis of 2,4,5-triaryl substituted imidazoles by the reaction of an arylaldehyde, benzyl/benzoin and an ammonium acetate.
Shitole Nana Vikram   +3 more
doaj   +1 more source

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