Relevant bibliographies by topics / 3-methyl-1H-pyrazol-5(4H)-one

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Academic literature on the topic '3-methyl-1H-pyrazol-5(4H)-one'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "3-methyl-1H-pyrazol-5(4H)-one"

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Antre, Rishikesh Vilas, Cendilkumar A, and Rajagopal Nagarajan. "Suzuki coupling on 4-(3-bromobenzylidene)-3-methyl- 1-phenyl-1H-pyrazol-5(4H)-one." International Journal of Drug Design and Discovery 2, no. 4 (2011): 674–75. https://doi.org/10.37285/ijddd.2.4.10.

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Reaction of 4-(3-bromobenzylidene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one with phenylboronic acid by using Pd(PPh3)4 as a catalyst in presence of K2CO3 and DMF gives the formation of 4-(3-phenylbenzylidene) -3-methyl-1-phenyl-1H-pyrazol-5(4H)-one. Detailed spectroscopic data (IR, 1H NMR, 13C NMR, MS, CHN) are presented.
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Antre, R. V., R. J. Oswal, D. B. Thorat, and R. B. Shete. "Edaravone Part 2: Antibacterial Activity of Novel Substituted Azetidinone Derivatives of Edaravone." International Journal of Drug Design and Discovery 3, no. 2 (2025): 749–52. https://doi.org/10.37285/ijddd.3.2.1.

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This paper describes development of new chemical entities of Edaravone for their antibacterial activity. The chemical name of Edaravone is 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one. Various N-(substituted benzylidenyl)-[2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)acetohydrazide] (4a-4e) and 2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)-acetamide- (3-chloro-4-substituted phenylazetidin-2-one) (DTa-DTe) screened for their antibacterial activity against Escherichia coli and Bacillus subtilis.
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3

Vijay, K., C. Nandi, and Shriniwas D. Samant. "Synthesis of a dihydroquinoline based merocyanine as a ‘naked eye’ and ‘fluorogenic’ sensor for hydrazine hydrate in aqueous medium and hydrazine gas." RSC Adv. 4, no. 58 (2014): 30712–17. http://dx.doi.org/10.1039/c4ra02426e.

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1,2,2,4-Tetramethyldihydroquinoline (TMDQ) is formylated at the 6-position and the resulting quinoline aldehyde is condensed with 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one to obtain a merocyanine 6-pyrazolinyl TMDQ.
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4

Dalal, Kiran S., Yogesh A. Tayade, Yogesh B. Wagh, Darshak R. Trivedi, Dipak S. Dalal, and Bhushan L. Chaudhari. "Bovine serum albumin catalyzed one-pot, three-component synthesis of dihydropyrano[2,3-c]pyrazole derivatives in aqueous ethanol." RSC Advances 6, no. 18 (2016): 14868–79. http://dx.doi.org/10.1039/c5ra13014j.

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A BSA catalyzed synthesis of dihydropyrano[2,3-c]pyrazole derivatives via a one pot, three component reaction of an aldehyde/ketone/isatin, malononitrile and 3-methyl-1H-pyrazol-5-(4H)-one in H<sub>2</sub>O–EtOH (7 : 3) at ambient temperature is reported.
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5

Shahani, Tara, Hoong-Kun Fun, R. Venkat Ragavan, V. Vijayakumar, and M. Venkatesh. "1-(4-Fluorophenyl)-3-methyl-4-phenylsulfanyl-1H-pyrazol-5(4H)-one." Acta Crystallographica Section E Structure Reports Online 66, no. 11 (2010): o2815—o2816. http://dx.doi.org/10.1107/s1600536810040596.

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6

Fun, Hoong-Kun, Ching Kheng Quah, Nithinchandra, and Balakrishna Kalluraya. "4-[2-(4-Chlorophenyl)hydrazinylidene]-3-methyl-1H-pyrazol-5(4H)-one." Acta Crystallographica Section E Structure Reports Online 67, no. 10 (2011): o2670. http://dx.doi.org/10.1107/s1600536811037020.

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7

Abou-Zied, Ashraf H., and Salema A. A. El-Mansory. "Synthesis of Pyrazolopyrazol Derivative via Reactions of Donor Compounds with 4-(2-Hydroxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one." Al-Mukhtar Journal of Sciences 29, no. 1 (2014): 30–39. http://dx.doi.org/10.54172/mjsc.v29i1.267.

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4-(2-hydroxybenzylidene)-3-methyl-1H-pyrazol-5(4H)-one 3 reacted with hydrazine, phenylhydrazine, semicarbazide, thiosemicarbazide, acylthiosemicarbazide and acetylthiosemicarbazide as donor compounds in ethanol in presence of acetic acid or sulphuric acid by reflux to form pyrazolopyrazole derivative s 4 to 9, Respectively. These products which have been characterized by FT-IR, 1H-NMR, 13C-NMR, mass spectra and elemental analysis have been produced in good yields.
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8

Saida, Keraghel, Benghanem Fatiha, Dehbi Ouarda, Ourari Ali, Ouari Kamel, and Lydia Brelot. "4-[(3-Hydroxyanilino)(phenyl)methylidene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1909—o1910. http://dx.doi.org/10.1107/s1600536812023082.

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In the title compound, C23H19N3O2, the dihedral angles formed by the pyrazolone ring with the three benzene rings are 30.91 (6), 60.96 (4) and 57.01 (4)°. The ligand is in the enamine–keto form and its structure is stabilized by an intramolecular N—H...O hydrogen bond. In the crystal, O—H...N hydrogen bonds link molecules into chains parallel to [01-1].
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9

Mohan, Billava, Balladka Sarojini, Badiadka Narayana, and Enumadishetty Sindhu Priya. "(Z)-4-[2-(3,4-Difluorophenyl)hydrazono]-3-methyl-1H-pyrazol-5(4H)-one." Molbank 2018, no. 2 (2018): M989. http://dx.doi.org/10.3390/m989.

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10

Veeranna, Dharmasothu, Lakavath Ramdas, Guguloth Ravi, Anil Kumar Bojja, and Ramchander Jadhav. "Synthesis, Characterization of Diethylamino Benzylidene-5-Methyl-2-Phenyl-Pyrazol-3- One Substituted 1,2,3-Triazoles and Evaluation of their Anti-Microbial Activity." Der Pharma Chemica 15, no. 1 (2023): 8. https://doi.org/10.5281/zenodo.13318679.

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A new series of (Z)-4-(4-(diethylamino)-2-((1-phenyl-1H-1,2,3-triazol-4-yl)methoxy)benzylidene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (5a-l)ha been synthesized by the reaction of (Z)-4-(4-(diethylamino)-2-(prop-2-yn-1-yloxy)benzylidene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one with different aromatic azides. Chemical structures of all the new compounds were established by IR, 1H-NMR, 13C NMR, MS and elemental data. The Compounds 5a-l were evaluated for their antibacterial activity against Gram-positive bacteria viz Bacillus subtilis(MTCC 441), Bacillus sphaericus (MTCC 11),Staphylococcus aureus
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Book chapters on the topic "3-methyl-1H-pyrazol-5(4H)-one"

1

Gowri, M. "Evaluation of DNA Binding and Cytotoxicity of Newly Synthesised Schiff Base (Z)-4-(((2-hydroxy phenyl)amino) (phenyl)methylene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one and Its Analogues." In Chemistry and Biochemistry: Research Progress Vol. 7. BP International, 2025. https://doi.org/10.9734/bpi/cbrp/v7/5786.

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