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Relevant bibliographies by topics / Quinazolin-4(3H) one

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Journal articles
Dissertations / Theses
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Academic literature on the topic 'Quinazolin-4(3H) one'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Quinazolin-4(3H) one"

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Alla, Manjula, Gal Potuganti, and Divakar Indukuri. "An Efficient One-Pot Multicomponent Synthesis of Tetracyclic Quinazolino[4,3-b]quinazolines by Sequential C–N Bond Formation and Copper-Mediated Aerobic Oxidative Cyclization." Synlett 29, no. 13 (2018): 1717–22. http://dx.doi.org/10.1055/s-0036-1591578.

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An efficient one-pot synthesis of quinazolino[4,3-b]quinazoline derivatives has been accomplished, starting from 2-(2-bromophenyl)quinazolin-4(3H)-one, aldehydes, and various nitrogen sources under aerobic conditions. The multicomponent protocol is mediated by copper(I) salts and involves amination of 2-(2-bromophenyl)quinazolin-4(3H)-one, followed by condensation with the aldehyde and an oxidative cyclization to give the target compounds in moderate to good yields.

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Pan, Wan-Chen, Mei-Mei Zhang, Jian-Quan Liu, and Xiang-Shan Wang. "Silver Triflate Catalyzed Synthesis of Isoquinolino[2,1-a]quinazolino[3,2-c]quinazoline Derivatives via Alkyne Hydroamination." Synthesis 51, no. 16 (2019): 3101–8. http://dx.doi.org/10.1055/s-0037-1611808.

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Using 2-(2-aminophenyl)quinazolin-4(3H)-one and 2-(2-phenylethynyl)benzaldehyde as the reactants, silver triflate (AgOTf) was proved to be an efficient catalyst to promote not only quinazoline cyclization, but also the intramolecular hydroamination of alkyne for the synthesis of 6-aryl-17H,18aH-isoquinolino[2,1-a]quinazolino[3,2-c]quinazolin-17-one derivatives in high yields.

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Patel, Harun, Rahul Pawara, and Sanjay Surana. "Resolving the Mystery of Ring Opening in the Synthesis of Benzo[d][1, 3]oxazin-4-one and Quinazolin-4(3H)-one." Letters in Organic Chemistry 16, no. 11 (2019): 898–905. http://dx.doi.org/10.2174/1570178616666181217114030.

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Quinazoline is the six-membered heterocyclic ring system reported for its versatile biological activities. This characteristic feature of quinazoline makes it a good template for a lead generation library. Ring opening is one of the major concerns in the synthesis of quinazolin-4(3H)-one that results in diamide formation. Here, alternative fusion strategy is reported, which is a time-saving and costeffective method to overcome the ring opening problem associated with the synthesis of benzo[ d][1,3]oxazin-4-one and quinazolin-4(3H)-one.

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Peter Osarodion Osarumwense, Mary Olire Edema, and Cyril Odianosen Usifoh. "Synthesis and antibacterial activities of quinazolin-4(3h)-one, 2-methyl-4(3h)-quinazolinone and 2–phenyl-4(3h)-quinazolinone." International Journal of Biological and Pharmaceutical Sciences Archive 1, no. 2 (2021): 077–84. http://dx.doi.org/10.30574/ijbpsa.2021.1.2.0027.

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Background: Quinazoline and quinazolinone scaffolds represent an important class of biologically active nitrogen heterocyclic compounds. Many marketed drugs are based on these moieties. A diverse range of molecules with quinazoline/quinazolinone moieties have been reported to exhibit broad spectrum of biological activities Objective: This study is aimed at the synthesis of these quinazolinone derivatives, quinazolin-4(3H)-One, 2-Methyl-4(3H)-quinazolinone and 2–Phenyl-4(3H)-quinazolin-4(3H)–one and evaluate them for their antibacterial activities. Method: The consolidation of 2-amino-methyl-4-

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Appani, Ramgopal, Baburao Bhukya, and Kiran Gangarapu. "Synthesis and Antibacterial Activity of 3-(Substituted)-2-(4-oxo-2-phenylquinazolin-3(4H)-ylamino)quinazolin-4(3H)-one." Scientifica 2016 (2016): 1–5. http://dx.doi.org/10.1155/2016/1249201.

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A series of novel 3-(substituted)-2-(substituted quinazolinylamino)quinazolin-4(3H)-ones were synthesized by the reaction of 3-(substituted)-2-hydrazino-quinazoline-4(3H)-ones with 2-phenyl-3,1-benzoxazin-4-one. The starting materials 3-(substituted)-2-hydrazino-quinazolin-4(3H)-ones were synthesized from various primary amines by a multistep synthesis. All the title compounds were tested for their antibacterial activity using ciprofloxacin as reference standard. Compounds 3-(4-fluorophenyl)-2-(4-oxo-2-phenylquinazolin-3(4H)-ylamino)quinazolin-4(3H)-one (9a) and 3-(4-chlorophenyl)-2-(4-oxo-2-p

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Osarumwense, P. O., M. O. Edema, and C. O. Usifoh. "Synthesis And Anagesic activities of Quinazolin-4(3H)-One, 2-Methyl-4(3H)-Quinazolinone and 2–Phenyl-4(3H)-quinazolin-4(3H)–one." Journal of Drug Delivery and Therapeutics 10, no. 4-s (2020): 87–91. http://dx.doi.org/10.22270/jddt.v10i4-s.4209.

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Background: Objective: The current study is aimed at the synthesis of these quinazolinone derivatives quinazolin-4(3H)-One, 2-Methyl-4(3H)-quinazolinone and 2–Phenyl-4(3H)-quinazolin-4(3H)–one and evaluate them for their analgesic activity. Method: The condensation of 2-amino-methyl-4-methoxybenzoate with acetic anhydride yielded the cyclic compound 2-methyl-4, 5-disubstituted-1, 3-benzo-oxazine-4-one which further produce a novel 2,3-disubstituted quinazolin-4 ones via the reaction with hydrazine hydrate The quinazolinone derivatives quinazolin-4(3H)-One, 2-Methyl-4(3H)-quinazolinone and 2–Ph

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Kulya, D., D. Kut, M. Kut, and M. Onysko. "SYNTHESIS OF 2,3-DIALKENYL DERIVATIVES OF QUINAZOLIN-4-ONE." Scientific Bulletin of the Uzhhorod University. Series «Chemistry» 53, no. 1 (2025): 40–44. https://doi.org/10.24144/2414-0260.2025.1.40-44.

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In the course of this study, alkylation of two starting thiols — 3-allyl-2-mercaptoquinazolin-4-one and 3-methallyl-2-mercaptoquinazolin-4-one — was carried out using allyl bromide and metallyl chloride in an alcoholic-alkaline medium. As a result of these reactions, new 2,3-dialkenyl derivatives of quinazolin-4-one were obtained, which have not been previously reported in the literature. The structures of the newly synthesized compounds were confirmed by NMR spectroscopy (¹H and ¹³C), as well as elemental analysis. The absence of thioamide proton signals in the ¹H NMR spectra indicates that a

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Widiyana, Anita Puspa. "COMPUTATION DESIGN OF QUINAZOLINE-4(3H)-ON DERIVATIVES AS CYCLOOXYGENASE-2 (COX-2) INHIBITOR." Jurnal Farmasi Sains dan Praktis 7, no. 2 (2021): 163–70. http://dx.doi.org/10.31603/pharmacy.v7i2.4827.

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    The 3-(benzylideneamino)-2-(2,4-dichlorophenyl)-quinazoline-4(3H)-ones (BDCQ) are compounds developed as anticancer drugs and quinazolines. The activity and bioavailability of BDCQ derivatives as anticancer compounds that inhibit COX-2 can be predicted by computer programs and online servers. Substituents are added at positions 2 and 3 to the quinazoline-4(3H)-on ring, such as -H, -NO2, -OCH3, -N(CH3)2, -SO2NH2, -OH, and –OCH3. QSAR as COX-2 inhibitor analysis was performed by SPSS Ver. 21 software. Lipinski’s rule of five for determining bioavailability is performe

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Srinivasan, T., S. Suhitha, M. Gnana Ruba Priya, K. Girija, N. Ravi Chandran, and D. Velmurugan. "3-(4-Bromophenyl)quinazolin-4(3H)-one." Acta Crystallographica Section E Structure Reports Online 67, no. 11 (2011): o2928. http://dx.doi.org/10.1107/s1600536811040736.

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Priya, M. Gnana Ruba, T. Srinivasan, K. Girija, N. Ravi Chandran, and D. Velmurugan. "3-(4-Chlorophenyl)quinazolin-4(3H)-one." Acta Crystallographica Section E Structure Reports Online 67, no. 9 (2011): o2310. http://dx.doi.org/10.1107/s1600536811030935.

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Dissertations / Theses on the topic "Quinazolin-4(3H) one"

1

Tiwari, Bipransh Kumar. "Studies on antiproliferative and antibacterial properties of some quinazoline-4(3H)-ones and their dimers." Thesis, University of North Bengal, 2016. http://ir.nbu.ac.in/hdl.handle.net/123456789/2573.

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Al-Sehemi, Abdullah G. M. "3-(N,N-Diacylamino)quinazolin-4(3H)-ones : preparation, stereostructure and application in kinetic resolution of amines." Thesis, University of Leicester, 2001. http://hdl.handle.net/2381/30055.

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3-Amino-2-[(S)-1-tert-butyldimethylsilyloxy-2-methylpropyl)quinazolin-4(3 H)-one was prepared from L-valine in six steps without the requirement for chromatography and used to prepare a number of 3-monoacylaminoquinazolinones (MAQs) by reaction with acid chlorides. The barrier to rotation around the N-N bond in these MAQs (~16 kcal/mol) is sufficient for it to constitute a chiral axis on the NMR timescale though not on the real timescale in solution. N,N-Diacylation of 3-aminoquinazolinones results in the formation of 3-diacylaminoquinazolinones (DAQs). When the two N-acyl groups of the imide

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Mmonwa, Mmakwena Modlicious. "Synthesis of Polyaryl-substituted Bisquinazolinones with potential photophysical properties." Diss., 2014. http://hdl.handle.net/10500/18789.

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3,5-Dibromo-2-aminobenzamide was reacted with 1,3-cyclohexanedione derivatives in the presence of iodine as catalyst in toluene under reflux to afford novel 6,8-dibromo-2-[3-(2´-alkyl-1´,2´,3´,4´-tetrahydro-6´,8´-dibromo-4´-oxoquinazoline-2yl)propyl]quinazolin-4(3H)-ones in high yields. Suzuki-Miyaura cross-coupling of the latter with arylboronic acids in the presence of Pd(PPh3)2Cl2–Xphos catalyst complex and K2CO3 as a base in dioxane-water mixture (3:1, v/v) afforded the corresponding polyaryl-substituted bis-heterocycles in a single step operation. The resultant compounds were characterize

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Paumo, Hugues Kamdem. "2-Aryl-6,8-Dibromo-4-Chloroquinazoline as scaffold for the synthesis of Novel 2,6,8-Triaryl-4-(Phenylethynyl)Quinazolines with potential photophysical properties." Diss., 2014. http://hdl.handle.net/10500/14197.

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The 2-aryl-6,8-dibromoquinazolin-4(3H)-ones were prepared in a single-pot operation by condensing 6,8-dibromoanthranilamide and aryl aldehydes in the presence of molecular iodine in ethanol. Treatment of the 2-aryl-6,8-dibromoquinazolin-4(3H)-ones with thionylchloride in the presence of dimethylformamide afforded the corresponding 2-aryl-4-chloro-6,8-dibromoquinazolines. Palladium(0)-copper iodide catalysed Sonogashira cross-coupling reaction of 2-aryl-4-chloro-6,8-dibromoquinazolines with terminal alkynes at room temperature afforded series of 2-aryl-6,8-dibromo-4-(alkynyl)quinazolines. Furth

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Book chapters on the topic "Quinazolin-4(3H) one"

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) chloride complex with 2-methyl-3-amino(3H)-quinazolin-4-one." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_457.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) bromide complex with 2-methyl-3-amino(3H)-quinazolin-4-one." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_458.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) perchlorate complex with 2-methyl-3-amino(3H)-quinazolin-4-one." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_459.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) nitrate complex with 2-methyl-3-amino(3H)-quinazolin-4-one." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_460.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) sulphate complex with 2-methyl-3-amino(3H)-quinazolin-4-one." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_461.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) thiocyanate complex with 2-methyl-3-amino(3H)-quinazolin-4-one." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_462.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of manganese(II) complex with 2-pyridine-2-yl-3-(pyridine-2-carboxylideneamino)quinazolin-4(3H)-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 5. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-65098-1_57.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) complex with 2-pyridine-2-yl-3-(pyridine-2-carboxylideneamino)quinazolin-4(3H)-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 5. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-65098-1_412.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of cobalt(II) complex with 2-pyridine-2-yl-3-(pyridine-2-carboxylideneamino)quinazolin-4(3H)-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 5. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-65098-1_195.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of nickel(II) complex with 2-pyridine-2-yl-3(pyridine-2-carboxylideneamino)quinazolin-4(3H)-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 5. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-65098-1_307.

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Conference papers on the topic "Quinazolin-4(3H) one"

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Richard, Alexander, Hamdy M. Abdel-Rahman, Jung Hyun Kim, Lana Vukadin, Gary A. Piazza, and Eun-Young E. Ahn. "Abstract 891: A novel quinazolin-4(3H)-one/Schiff base hybrid phosphodiesterase 4 inhibitor as a potential therapeutic agent for leukemia." In Proceedings: AACR Annual Meeting 2018; April 14-18, 2018; Chicago, IL. American Association for Cancer Research, 2018. http://dx.doi.org/10.1158/1538-7445.am2018-891.

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Suong, Lien Kieu, Vo Phung Nguyen, and Trinh Thi Phuong Lan. "ANTI-CONVULSIVE ACTIVITY OF NL197, A DERIVATIVE FROM 4(3H)QUINAZOLINON ON CHEMICAL INDUCED SEIZURE MICE." In The 13th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2009. http://dx.doi.org/10.3390/ecsoc-13-00215.

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Cruz-Monteagudo, Maykel, Fernanda Borges, and M. Natália Cordeiro. "MOOP-DESIRE-based Simultaneous Optimization of the Analgesic, Antiinflammatory, and Ulcerogenic Profiles of 3-(3-Methylphenyl)-2-Substituted Amino-3H-Quinazolin-4-ones." In The 12th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2008. http://dx.doi.org/10.3390/ecsoc-12-01287.

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