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Готові списки джерел за темами / Pyrazoline-5- one derivatives

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Добірка наукової літератури з теми "Pyrazoline-5- one derivatives"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Pyrazoline-5- one derivatives"

1

N., Hariraj1* N. Kannappan2 Siju.E.N3. "Synthesis of certain Pyrazoline 5-One Derivatives of 6-Methyl Nicotinicacid and Evaluation of their Antimicrobial activities." Journal of Pharma Research 1, no. 2 (2012): 16–17. https://doi.org/10.5281/zenodo.1098657.

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<strong><em>ABSTRACT</em></strong> <em>Pyrazolines are known to possess a wide variety of biological activities. Due to the wide range of biological activities that Pyrazolines posses, it was our aim to prepare pyrazolin-5-one derivatives containing substituted Nicotinic acid and to explore, their therapeutic advantage. Among the six newly synthesized pyrazoline-5-one derivatives MPZ-1 showed promising antimicrobial activity even at a concentration 250mcg/disc. and MPZ-2 showed moderate antimicrobial activity at a concentration 500mcg/disc.</em> <strong><em>Keywords: </em></strong><em>Pyrazoli

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2

Gineinah, Magdy. "6-, 7- AND 8-(5-ARY L-1-PHENYL-2-PYRAZOLIN-3-LY)IMIDAZO- AND PYRIMIDO[2,1-b]BENZOTHIAZOLES AS NOVEL ANTICONVULSANT AGENTS." Scientia Pharmaceutica 69, no. 1 (2001): 53–61. http://dx.doi.org/10.3797/scipharm.aut-01-06.

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Some new derivatives of 2-amino-5- and 6-(5-aryl-1-phenyl-2-pyrazolin-3-yl)benzothiazole were synthesized from the corresponding aminophenyl compounds by reaction with KSCN/Br2 to build up the benzothiazole ring. The aminophenyl derivatives of pyrazoline were prepared by cyclization with phenylhydrazine of the appropriate 1,3-diphenyl-2-propen-1-one derivatives obtained from arninoacetophenone and differently substituted aldehydes. However, the newly synthesized 2-aminobenzothiazole derivatives of pyrazoline were subjected to cyclization with ethyl brornopyruvate to afford the formation of 6-

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3

Fatmayanti, Baiq Risma, Ahmad Habibie, and Anselmania Kartini Dhey. "SYNTHESIS OF CHALCONE AND PYRAZOLINE DERIVATIVES WITH ACETOPHENONE AND VERATRALDEHYDE AS PRECURSORS." Medical Sains : Jurnal Ilmiah Kefarmasian 9, no. 3 (2024): 655–64. http://dx.doi.org/10.37874/ms.v9i3.1274.

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Chalcones and pyrazolines are heterocyclic compounds with promising biological and pharmaceutical activities. Chalcone and pyrazoline can be found in different sources, such as natural and synthetic compounds. This study aimed to explore the synthesis of chalcone and pyrazoline derivatives with acetophenone and veratraldehyde as precursors. Chalcone was successfully synthesized through the Claissen-Schmidt reaction between acetophenone and veratraldehyde at room temperature 25-30 ºC and mediated by KOH as a base catalyst for 20 hours. The corresponding substituted pyrazoline derivative was als

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4

Mistry, Rakesh N., and K. R. Desai. "Studies on Synthesis of Some Novel Heterocyclic Chalcone, Pyrazoline, Pyrimidine - 2 - One, Pyrimidine - 2 - Thione,para-Acetanilide Sulphonyl and Benzoyl Derivatives and their Antimicrobial Activity." E-Journal of Chemistry 2, no. 1 (2005): 30–41. http://dx.doi.org/10.1155/2005/953107.

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1, 2 - Dichloro benzene on chlorosulphonation by chlorosulphonic acid gives 1, 2 - [dichloro] - benzene sulphonyl chloride which on condensation withp–amino acetophenone gives 1-[acetyl] - 1’ , 2’ - [dichloro] - dibenz sulphonamide derivative. This derivative undergo condensation with 2,4- dichloro benzaldehyde gives 1- [3” - (sub. phenyl) - 2” - propene - 1” - one] - 1’ , 2’ - [dichloro] - dibenz sulphonamide derivative which on reaction with 99% hydrazine hydrate and glacial acetic acid gives 1-[acetyl]-3- [1’ , 2’ - (dichloro) - dibenz sulphonamide] -5 - [2” , 4” - dichloro phenyl] - 2 - py

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5

Al-Smaisim, Rafah F., Redha E. Al-Bayati, and Abdul Hussain K. Sharba. "Synthesis of New Heterocyclic compounds derived from Pyrazoline-5-one compound." Al Mustansiriyah Journal of Pharmaceutical Sciences 9, no. 1 (2011): 123–31. http://dx.doi.org/10.32947/ajps.v9i1.278.

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In this work new heterocyclic pyrazolin derivatives have been synthesized from diazonium chloride salt of 4-aminobenzoic acid: firstly, Azo compounds were prepared from the reaction of an ethanolic solution of sodium acetate and calculated amount of active methylene compound namely, (ethyl acetoacetate)obtain the corresponding hydrazono derivative (1). Secondly, Cyclocondensation reaction of compound (1) with hydrazine hydrate (2) in boiling ethanol affording the corresponding pyrazoline-5-one. Then compound (2) reacted with thionyl chloride to give the corresponding acid chloride derivative(3

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6

Mervat Mohammed K and Tagreed N-A Omar. "Synthesis, Characterization, Anti-Inflammatory, and Antimicrobial Evaluation of New 2-Pyrazolines Derivatives Derived from Guaiacol." Iraqi Journal of Pharmaceutical Sciences( P-ISSN 1683 - 3597 E-ISSN 2521 - 3512) 32, Suppl. (2023): 254–61. http://dx.doi.org/10.31351/vol32isssuppl.pp254-261.

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Abstract: Chalcones were used to synthesis series of 2-pyrazoline derivatives and evaluated their antimicrobial and anti-inflammatory activities (E)-1,3-diphenylprop-2-en-1-one (1-5) were synthesized by Claisen-Schmidt Condensation method through the reaction of acetophenone with five various para substituted benzaldehyde in presence of KOH, the reaction monitoring by TLC and the result intermediates were checked by melting point and FT-IR Various 2-Pyrazoline derivatives were prepared by one pot reaction that involved the refluxing of (E)-1,3-diphenylprop-2-en-1-one (1–5) an

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7

Sabah, Rusul Saad, Zahraa S. Al-Garawi, and Mahmoud N. Al-jibouri. "The utilities of pyrazolines encouraged synthesis of a new pyrazoline derivative via ring closure of chalcone, for optimistic neurodegenerative applications." Al-Mustansiriyah Journal of Science 33, no. 1 (2022): 21–31. http://dx.doi.org/10.23851/mjs.v33i1.1067.

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Pyrazolines and their derivatives have been extensively studied as coordinated ligands of high potential applications in diverse chemical and biological systems. This work explores some methods of synthesis of pyrazolines, such as the preparation of pyrazole derivatives via chalcones. It also demonstrates that 2-pyrazoline complexes were biologically active and have had a range of clinical applications. Palladium (II) complex of pyrazole was active as antitumor when tested against murine mammary adenocarcinoma (LM3). Copper (II) and Cobalt (II) complex are biologically active in the living sys

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8

El-Ossaily, Y. A. B., R. M. Zaki, and S. A. Metwally. "Investigation and Synthesis of Some Novel Spiro Heterocycles Related to Indoline Moiety." Journal of Scientific Research 6, no. 2 (2014): 293–307. http://dx.doi.org/10.3329/jsr.v6i2.17590.

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Reactions of indole-2,3-dione 1 with 2-mercaptobenzimidazole, o-phenylenediamine, 2-aminophenol, 2-aminobenzothiazole, 2-aminobenzimidazole and 3-methyl-1-phenyl-2-pyrazolin-5-one were carried out to give compounds spiroindolethiazetobenzimidazole 2, spirobenzimidazole(oxazole)indoline 3a,b, benzothiazol(imidazol) iminoindolinone 4a,b and methyloxoindolylidenepyrazolone 5 respectively. Compound 5 was reacted with 2-aminophenol as well as o-phenylenediamine to give new spirooxazepine and diazepine derivatives 6a,b respectively. Reaction of 5 with nitrogen nucleophiles as well as carbon nucleoph

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9

Yuosra K. Alasadi, Farouq Emam Hawais, and Ahmed A. ALKazmi. "Synthesis and Characterization of Some New Pyrazoline Derivatives Containing Azo Group by One Pot Method." Tikrit Journal of Pure Science 23, no. 3 (2018): 67–74. http://dx.doi.org/10.25130/tjps.v23i3.502.

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This research includes the preparation of some of pyrazoline derivatives containing the azo group by one pot method through the treatment of the compound 2-hydroxy-5-(m-tolyldiazenyl) benzaldehyde with p-chlorob enzylchloride to give the compound(1) using the Williamson reaction. The compound (1) is treated with a series of ketones and with phenylhydrazine in the base medium to give new derivatives of pyrazoline (2-11). The synthesized compounds were characterized by elemental analyses and FT-IR, 1H-NMR, 13C-NMR, 13C-DEPT.

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10

Rathinamanivannan, S., K. Megha, Raja Chinnamanayakar, Ashok Kumar, and M. R. Ezhilarasi. "Synthesis and Characterization of 2-Pyrazoline Derivatives and their in silico and in vitro Studies on Antimicrobial and Anticancer Activities." Asian Journal of Chemistry 31, no. 10 (2019): 2191–96. http://dx.doi.org/10.14233/ajchem.2019.22082.

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The new series of 1-(4,5-dihydro-5-phenyl-3-diphenylpyrazol-1-yl)butan-1-one derivatives were synthesized by cyclization method using biphenyl chalcone with n-butyric acid and hydrazine hydrate. The synthesized 1-(4,5-dihydro-5-phenyl-3-diphenylpyrazol-1-yl)butan-1-one derivatives chemical structures were confirmed from spectral data such as FT-IR, 1H and 13C NMR. 2-Pyrazoline derivatives were docked with bacterial (1UAG) and breast cancer (1OQA) protein. Based on high binding affinity score, the best compound was subjected to in vitro anticancer activity by MTT assay. Also, antimicrobial acti

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