Results 11 to 20 of about 7,109 (211)

Crystal structure of (3,5-dichloro-2-hydroxyphenyl){1-[(naphthalen-1-yl)carbonyl]-1H-pyrazol-4-yl}methanone

open access: yesActa Crystallographica Section E, 2014
The title compound, C21H12Cl2N2O3, is a 1,4-diaroyl pyrazole derivative and has three aromatic rings. The dihedral angles between the naphthalene ring system and the pyrazole ring, the pyrazole and phenyl rings and the naphthalene ring system and the ...
Yoshinobu Ishikawa, Yuya Motohashi
doaj   +1 more source

Crystal structure of (3,5-dibromo-2-hydroxyphenyl){1-[(naphthalen-1-yl)carbonyl]-1H-pyrazol-4-yl}methanone

open access: yesActa Crystallographica Section E, 2014
In the title compound, C21H12Br2N2O3, a 1,4-diaroyl pyrazole derivative, the dihedral angles between the naphthalene ring system and the pyrazole ring, the pyrazole and benzene rings, and the naphthalene ring system and benzene ring are 50.0 (2), 51.1 (2)
Yoshinobu Ishikawa, Yuya Motohashi
doaj   +1 more source

Tricyclic Pyrazole-Based Compounds as Useful Scaffolds for Cannabinoid CB1/CB2 Receptor Interaction

open access: yesMolecules, 2021
Cannabinoids comprise different classes of compounds, which aroused interest in recent years because of their several pharmacological properties. Such properties include analgesic activity, bodyweight reduction, the antiemetic effect, the reduction of ...
Battistina Asproni   +3 more
doaj   +1 more source

tert-Butyl 4-{[5-(4-chlorophenyl)-1-(4-fluorophenyl)-1H-pyrazol-3-yl]carbonyl}piperazine-1-carboxylate

open access: yesActa Crystallographica Section E, 2010
In the title pyrazole derivative, C25H26ClFN4O3, both benzene rings are twisted out of the plane through the pyrazole ring, with dihedral angles of 67.62 (10) and 27.63 (10)° for the fluoro- and chloro-substituted rings ...
Seik Weng Ng   +4 more
doaj   +1 more source

The Electrochemical Behavior of Al Alloys in NaCl Solution in the Presence of Pyrazole Derivative [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
This paper studies the corrosion inhibition of Al-Mg alloy system in 0.5 mol/dm3 NaCl solution in the presence of pyrazole derivative using potentiodynamic polarization and linear polarization method.
Veselinka Grudic   +4 more
doaj  

On the Interactions of Fused Pyrazole Derivative with Selected Amino Acids: DFT Calculations

open access: yesJournal of Chemistry, 2017
Due to the increasing prevalence of neoplasms, there is a permanent need for new selective cytostatic compounds. Anticancer drugs can act in different ways, affecting protein expression and synthesis, including disruption of signaling pathways within ...
Kornelia Czaja   +7 more
doaj   +1 more source

PYRAZOLE DERIVATIVES.

open access: yes, 1939
An indolylpyrazolone derivative has been synthesised The syntheses of some pyrrolapyrazole and dipyrazole derivatives have been described.
TEJENDRA NATH GHOSH, DEBABRATA DAS-GUPTA
openaire   +1 more source

Synthesis, Characterization and ِAntimicrobial Activities of Some New Heterocyclic Schiff Bases Derived from Thiocarbohydrazide

open access: yesActa Chimica Slovenica, 2016
The reaction of prazolobenzothienopyrimidine-3-carbaldehyde 1 with thiocarbohydrazide afforded the Schiff’s base 3. The latter compound reacted with some electrophilic reagents to give 1,2,4-triazoles 4–6 and 1,2,4-triazines 7–9.
Kamelia El-mahdy   +4 more
doaj   +1 more source

One‐Pot Amidation/C─H Halogenation by an Efficient Electrochemical Cascade

open access: yesAngewandte Chemie, EarlyView.
A sustainable electrochemical cascade enables the one‐pot synthesis of regioselectively halogenated N‐aryl amides from readily available amines and acyl halides under mild conditions. The method merges amidation and C─H halogenation in a single operational step, delivering broad substrate scope, high selectivity, and scalability, and provides an ...
Sudipta Ponra   +8 more
wiley   +2 more sources

(4Z)-4-[(2E)-1-Hydroxy-3-(4-methoxyphenyl)prop-2-enylidene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one

open access: yesActa Crystallographica Section E, 2009
The title compound, C20H18N2O4, is a chalcone derivative of pyrazole. The pyrazole ring is inclined at a dihedral angle of 19.29 (12)° to the methoxyphenyl ring mean plane, and by 1.19 (13)° to the phenyl ring.
Mukhtar-ul-Hassan   +4 more
doaj   +1 more source

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