Results 11 to 20 of about 15,610 (266)

3-Acetyl-5-phenyl-1-p-tolyl-1H-pyrazole-4-carbonitrile

Acta Crystallographica Section E, 2012
In the title pyrazole derivative, C19H15N3O, the central pyrazole ring makes dihedral angles of 42.71 (9) and 61.34 (9)°, respectively, with the phenyl and p-tolyl rings.
Hatem A. Abdel-Aziz, Hazem A. Ghabbour, Suchada Chantrapromma, Hoong-Kun Fun   +3 more
doaj   +1 more source

Palladium-catalyzed difluoromethylation of heteroaryl chlorides, bromides and iodides. [PDF]

, 2017
A palladium-catalyzed difluoromethylation of a series of heteroaryl chlorides, bromides and iodides under mild conditions is described. A wide range of heteroaryl halides such as pyridyl, pyrimidyl, pyrazyl, funanyl, thienyl, pyazolyl, imidazolyl ...
Gu, Yang, Gu, Yucheng, Lu, Changhui, Shen, Qilong, Wu, Jiang   +4 more
core   +1 more source

Regioselective Synthesis of Some Pyrazole Scaffolds Attached to Benzothiazole and Benzimidazole Moieties

Journal of Chemistry, 2014
Condensation of 2-(benzothiazol-2-yl)acetonitrile (1) or 2-(1-methyl-1H-benzimidazol-2-yl)acetonitrile (2) with thiophene-2-carbaldehyde afforded the corresponding acrylonitrile derivatives 3 or 4, respectively.
Nabila A. Kheder, Yahia N. Mabkhot, Fawzia R. Zahian, Sara S. Mohamed   +3 more
doaj   +1 more source

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

Acta 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

Synthesis, biological evaluation, and SAR study of novel pyrazole analogues as inhibitors of Mycobacterium tuberculosis: Part 2. Synthesis of rigid pyrazolones [PDF]

, 2009
Two series of novel rigid pyrazolone derivatives were synthesized and evaluated as inhibitors of Mycobacterium tuberculosis (MTB), the causative agent of tuberculosis. Two of these compounds showed a high activity against MTB (MIC = 4 μg/mL).
Alessandro De Logu, Beatrice Bechi, Biava, Biava, Biava, Brock, Castagnolo, Daniele Castagnolo, De Logu, Deidda, Fabrizio Manetti, Gutierrez-Lugo, Holzer, Janin, Mafalda Pagano, Manetti, Manuela Saddi, Marco Radi, Maurizio Botta, Rita Meleddu   +19 more
core   +1 more source

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

Acta 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

Molecules, 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, Gabriele Murineddu, Paola Corona, Gérard A. Pinna   +3 more
doaj   +1 more source

Trispyrazolylborate Ligands Supported on Vinyl Addition Polynorbornenes and Their Copper Derivatives as Recyclable Catalysts [PDF]

, 2019
Polynorbornenes prepared by vinyl addition poly- merization and bearing pendant alkenyl groups serve as skeletons to support trispyrazolylborate ligands (Tpx) built at those alkenyl sites.
Albéniz Jiménez, Ana Carmen, Beltrán de Heredia Rentería, Juan, Díaz Requejo, María del Mar, Molina de la Torre, Jesús Ángel, Pérez Ortega, Ignacio, Pérez, Pedro J., Rodríguez, Manuel R.   +6 more
core   +2 more sources

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

Acta 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, S. Sarveswari, V. Vijayakumar, R. Venkat Ragavan, Edward R. T. Tiekink   +4 more
doaj   +1 more source

Molecular catalysis for precise olefin polymerization and ROP 2015 [PDF]

, 2016
The growth of emerging markets, particularly in the Far East, has fuelled the demand for new plastic materials. This in turn has stimulated both academic and industrial interest in the design of catalyst systems for which new Intellectual Property (IP ...
Redshaw, Carl
core   +3 more sources