Results 161 to 170 of about 7,109 (211)

Some gold(III) derivatives of pyrazoles

Inorganica Chimica Acta, 1985
Abstract Various gold(III) derivatives of pyrazoles, pzH, were obtained and characterized. Besides the salt [3,5-Ph2pzH2][AuCl4], they included adducts, AuCl3·pzH, μ-pyrazolato-N,N′-derivatives, [Cl2Au(pz)]n (such as: n = 2 and pz = 3,5-diphenyl-4-chloropyrazolato), and one derivative containing both a neutral pyrazole and a pyrazolato ligand, Cl2Au ...
A. BANDINI, G. BANDITELLI, F. BONATI, G. MINGHETTI, M. PINILLOS   +4 more
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Anticancer effect of three pyrazole derivatives

Natural Product Research, 2006
The evaluation of the cytotoxic properties in vitro of three synthetic tripods containing pyrazole: N,N-bis[(3,5-dimethylpyrazol-1-yl)methyl]aniline (1); N,N-tetrakis[(3,5-dimethylpyrazol-1-yl)methyl]-para-phenylenediamine (2); and N,N-tetrakis-[(1,5-dimethylpyrazol-3-yl)methyl]-para-phenylenediamine (3), was examined for their cytotoxic activity on ...
Ibrahim, Bouabdallah, Lahcen Ait, M'Barek, Abdelmajid, Zyad, Abdelkrim, Ramdani, Ismail, Zidane, Ahmed, Melhaoui   +5 more
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Pyrazole derivatives of diborane(4)

Journal of the American Chemical Society, 1988
Abstract : The present study was based on the assumption that a neutral Boron Pyrazole species would likely exist in a polymeric structure. Therefore, it should contain the bridging Boron Pyrazole units typical for pyrazaboles but also terminal B bonded Pyrazole groups and thus would be related to B-poly(1-pyrazolyl)pyrazaboles. Furthermore, a (pz)3B-B(
C. P. Brock, M. K. Das, R. P. Minton, Kurt. Niedenzu   +3 more
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Review: biologically active pyrazole derivatives

New Journal of Chemistry, 2017
Nitrogen-containing heterocyclic compounds and their derivatives have historically been invaluable as a source of therapeutic agents.
Anam Ansari, Abad Ali, Mohd Asif, Shamsuzzaman Shamsuzzaman   +3 more
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One-pot synthesis of benzochromeno-pyrazole derivatives

Molecular Diversity, 2010
One-pot synthesis of different benzochromeno-pyrazole derivatives has been reported via reaction of aldehydes, 3-methyl-1H-pyrazol-5(4H)-one and α-naphthol/β-naphthol in the presence of sulfamic acid.
Majid M, Heravi, Mina, Saeedi, Yahya S, Beheshtiha, Hossein A, Oskooie   +3 more
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Pyrazole and imidazo[1,2-b]pyrazole Derivatives as New Potential Antituberculosis Agents

Medicinal Chemistry, 2019
Background:We screened a large library of differently decorated imidazo-pyrazole and pyrazole derivatives as possible new antitubercular agents and this preliminary screening showed that many compounds are able to totally inhibit Mycobacterium growth (>90 %).
Meta E, Brullo C, Tonelli M, Franzblau SG, Wang Y, Ma R, Baojie W, Orena BS, PASCA, MARIA ROSALIA, Bruno O.   +9 more
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Chromatography of pyrazole derivatives on acetylated paper

Journal of Chromatography A, 1965
Abstract The chromatography of pyrazole on acetylated paper is described. An attempt is made to correlate some of the chromatographic data with the structure of compounds. The influence of the inductive effect of the substituents is clearly seen, especially for 1-phenyl-3-methyl-5-x-pyrazoles.
S, TABAK, I I, GRANDBERG, A N, KOST
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A facile synthesis of sugar-pyrazole derivatives

Carbohydrate Research, 2011
A facile synthesis of sugar-pyrazole derivatives has been accomplished by condensation of sugar-chalcone with hydrazine hydrate under neutral conditions resulting in yields of 70-85%. The products are characterized by FTIR and NMR spectroscopy and by elemental analysis. The β-anomeric forms for these derivatives were assigned by NMR spectroscopy.
Arasappan, Hemamalini, Subbiah, Nagarajan, Thangamuthu, Mohan Das   +2 more
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Enzymatic halogenation of pyrazoles and pyridine derivatives

Journal of Heterocyclic Chemistry, 1987
AbstractPyrazole, 1‐methylpyrazole and 3‐methylpyrazole are chlorinated by the enzyme chloroperoxidase from Caldariomyces fumago, in the presence of potassium chloride and hydrogen peroxide at pH 2.7, yielding the corresponding 4‐chloro derivatives in good yields. A 4H‐pyrazole is proposed as an intermediate in this reaction.
Franssen, M.C.R., van Boven, H.G., van der Plas, H.C.   +2 more
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A pyrazole derivative of curcumin enhances memory

Neurobiology of Aging, 2010
Reduced cognitive function is associated with Alzheimer's and Parkinson's diseases as well as brain trauma and ischemia. However, there are few compounds that enhance memory and are also orally active. We recently synthesized a pyrazole derivative of curcumin called CNB-001 that enhances the activity of Ca(2+)/calmodulin dependent protein kinase II ...
Pamela, Maher, Tatsuhiro, Akaishi, David, Schubert, Kazuho, Abe   +3 more
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