Academic literature on the topic 'Pyrazolones'
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Journal articles on the topic "Pyrazolones"
Gediz Erturk, Aliye, and Hilal Omerustaoglu. "Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives." Molecules 25, no. 4 (February 18, 2020): 900. http://dx.doi.org/10.3390/molecules25040900.
Full textSun, Jun-Shu, Ying-Ying Wang, Man Liu, Jing Zhang, Chen-Fei Liu, Yan-Jun Xu, and Lin Dong. "Construction of pyrazolone analogues via rhodium-catalyzed C–H activation from pyrazolones and non-activated free allyl alcohols." Organic Chemistry Frontiers 6, no. 15 (2019): 2713–17. http://dx.doi.org/10.1039/c9qo00504h.
Full textYang, Kai, Xiaoze Bao, Ye Yao, Jingping Qu, and Baomin Wang. "Iodine-mediated cross-dehydrogenative coupling of pyrazolones and alkenes." Organic & Biomolecular Chemistry 16, no. 34 (2018): 6275–83. http://dx.doi.org/10.1039/c8ob01645c.
Full textZhang, Wande, Shah Nawaz, Yue Huang, Wenjing Gong, Xingfu Wei, Jingping Qu, and Baomin Wang. "C-4 benzofuranylation of pyrazolones by a metal-free catalyzed indirect heteroarylation strategy." Organic & Biomolecular Chemistry 19, no. 46 (2021): 10215–22. http://dx.doi.org/10.1039/d1ob01920a.
Full textWei, Shiqiang, Xiaoze Bao, Wenyao Wang, Shah Nawaz, Qimin Dai, Jingping Qu, and Baomin Wang. "Enantioselective construction of dispirotriheterocycles featuring a 4-aminopyrazolone motif through a cascade Michael/cyclization process." Chemical Communications 56, no. 73 (2020): 10690–93. http://dx.doi.org/10.1039/d0cc04215c.
Full textPattan, S. R., P. A. Chavan, R. A. Muluk, S. S. Dengale, S. V. Hiremath, K. D. Pansare, S. S. Vetal, and J. S. Pattan. "SYNTHESIS AND BIOLOGICAL EVALUATION OF SOME HETEROCYCLES CONTAINING OXADIAZOLE AND PYRAZOLE RING FOR ANTI-BACTERIAL, ANTI-FUNGAL AND ANTI-TUBERCULAR ACTIVITIES." INDIAN DRUGS 49, no. 03 (March 28, 2012): 18–24. http://dx.doi.org/10.53879/id.49.03.p0018.
Full textKashinath, Dhurke, Kota Sathish, and Sakkani Nagaraju. "Synthesis of Spiro Pyrazolone-Oxindole and Bicyclic Pyrazolone Derivatives via Solvent-Dependent Regioselective Aza-1,4/1,6-Michael and Intramolecular Cycloaddition under Catalyst-Free Conditions." SynOpen 05, no. 02 (April 13, 2021): 123–33. http://dx.doi.org/10.1055/a-1480-9837.
Full textHassan, Abdalla E. A., Ahmed H. Moustafa, Mervat M. Tolbah, Hussein F. Zohdy, and Abdelfattah Z. Haikal. "Synthesis and Antimicrobial Evaluation of Novel Pyrazolones and Pyrazolone Nucleosides." Nucleosides, Nucleotides and Nucleic Acids 31, no. 11 (November 2012): 783–800. http://dx.doi.org/10.1080/15257770.2012.732250.
Full textZhao, Xia, Xiaoyu Lu, Lipeng Zhang, Tianjiao Li, and Kui Lu. "One-pot Synthesis of Pyrazolone Sulfones by Iodine-catalyzed Sulfenylation of Pyrazolones with Aryl Sulfonyl Hydrazides Followed by Oxidation in Water." Current Organic Synthesis 15, no. 3 (April 27, 2018): 380–87. http://dx.doi.org/10.2174/1570179414666171020113745.
Full textChu, Ming-Ming, Suo-Suo Qi, Yi-Feng Wang, Biao Wang, Zhen-Hui Jiang, Dan-Qian Xu, and Zhen-Yuan Xu. "Organocatalytic asymmetric [4 + 1] annulation of in situ generated ortho-quinomethanes with 4-halo pyrazolones: straightforward access to chiral spiro-benzofuran pyrazolones." Organic Chemistry Frontiers 6, no. 12 (2019): 1977–82. http://dx.doi.org/10.1039/c9qo00332k.
Full textDissertations / Theses on the topic "Pyrazolones"
Lavergne, Kaitlyn. "Synthesis of Azomethine Imines via Alkene Aminocarbonylation and their Derivatization into Pyrazolones." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32516.
Full textDiantouba, Bertin Aimé. "Effets structuraux des acyl-4-pyrazolones-5 dans l'extraction liquide-liquide des cations metalliques divalents." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13093.
Full textBOUHRIBA, ALI. "Etude de la complexation de divers cations metalliques par des di-(acyl-4- pyrazolones-5)." Université Louis Pasteur (Strasbourg) (1971-2008), 1998. http://www.theses.fr/1998STR13116.
Full textLAKKIS, ZAHREDDINE ZEINAB. "Aspects thermodynamiques et cinetiques de l'extraction de metaux divalents par des acyl-4-pyrazolones-5." Strasbourg 1, 1986. http://www.theses.fr/1986STR13001.
Full textLakkis-Zahreddine, Zeinab. "Aspects thermodynamiques et cinétiques de l'extraction de métaux divalents par des acyl-4-pyrazolones-5." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37598930d.
Full textDiantouba, Bertin Aimé. "Effets structuraux des acyl-4-pyrazolones-5 dans l'extraction liquide-liquide des cations métalliques divalents." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37613176t.
Full textCorreia, José Tiago Menezes 1986. "Estudos visando a síntese assimétrica da (+)-Napalilactona. Síntese de pirazolidinonas e pirazolonas a partir de adutos de Morita-Baylis-Hillman." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250231.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Química
Made available in DSpace on 2018-08-21T05:18:40Z (GMT). No. of bitstreams: 1 Correia_JoseTiagoMenezes_M.pdf: 8686931 bytes, checksum: bcb49e865e00306bf2105e6bcda93583 (MD5) Previous issue date: 2012
Resumo: Esse trabalho é composto de dois capítulos. No primeiro relatamos nossos esforços visando descrever a primeira síntese total da (+)-Napalilactona, um nor-sesquiterpeno clorado extraído do coral Lemnalia africana. Essa substância marinha possui quatro centros estereogênicos consecutivos em sua estrutura, dois deles quaternários, sendo que um destes centros quaternários pertence também a um anel espiro. A estratégia sintética utilizou a (S)-Carvona como material de partida, de modo que foi possível, através do centro pré-existente no monoterpeno de partida, gerar o primeiro centro existente no produto natural. A partir deste centro, utilizando metodologias já bem estabelecidas na literatura, foi possível induzir a formação de dois dos três centros restantes, de modo que 78% do esqueleto carbônico do produto natural foi construído em um total de 10 etapas, com um rendimento global de 3%. Na segunda parte desse trabalho relatamos os resultados obtidos em um estudo metodológico envolvendo a reação entre a aminoguanidinina, um bis-nucleófilo polinitrogenado, e adutos de Morita-Baylis-Hillman (MBH) sililados e acetilados. Frente aos adutos de MBH sililados, as reações com a aminoguanidina conduziram, através de um processo tandem, à formação de uma mistura diastereoisomérica de pirazolidinonas sililadas em excelentes rendimentos, sendo que o diastereoisomero syn é o favorecido em todos os casos. A diastereosseletividade dessa reação variou de 2:1 a 7:1 (syn:anti). Quando investigamos o comportamento da aminoguanidina frente aos adutos de MBH acetilados, utilizando como solvente a acetonitrila, as reações com a aminoguanidina conduziram, também através de um processo tandem, à formação exclusiva de pirazolidinonas benzilidênicas, quando um aduto oriundo de um aldeído alifático ou oriundo de um aldeído aromático substituído com grupos doadores de elétrons foram utilizados. No entanto, frente a adutos oriundos de aldeídos aromáticos com grupos retiradores de elétrons, foi observada uma tendência à formação de pirazolonas, que são regioisomeros das pirazolidinonas previamente obtidas. Estes dados indicaram que, sob estas condições, a natureza do grupo substituinte rege a seletividade destas reações. Mais tarde, observou-se que, ao submetermos as pirazolidinonas a uma solução de 2 equivalentes de K2CO3 em metanol, estas poderiam ser completamente convertidas às respectivas pirazolonas. Mostrando a influência da natureza do solvente nestas transformações químicas
Abstract: This work is composed by two chapters. In the first one we disclosed our efforts towards the first total synthesis of (+)-Napalilactone, a chlorinated nor-sesquiterpene isolated from the coral Lemnalia africana. This marine natural compound has four consecutive stereogenic centers in their structure, two of them quaternaries. One of these quaternary centers belonging to a spiro ring. Our synthetic strategy started from commercially available (S)-carvone. The asymmetric center presented in this monoterpene was used to induce the first stereogenic center exhibited by the natural product. This task was accomplished by employing a sequence of well-established synthetic metodologies. This stereogenic center has induced the formation of two of the remaining three estereogenic centers. So that 78% of the carbon skeleton of the natural product has been built in a total of 10 steps with an overall yield of 3%. In the second part of this work we described the results of a methodological study envolving the reaction between aminoguanidinine, a polynitrogenated bis-nucleophile, and silylated and acetylated Morita-Baylis-Hillman adducts (MBH). The reaction of aminoguanidine with silylated MBH adducts gave, through a tandem process, a diastereoisomeric mixture of silylated pyrazolidinones in excellent yields, in which the syn diastereoisomer is favored in all cases. The diastereoselectivity of theses reactions ranged from 2:1 to 7:1 (syn:anti). When we investigated the reaction of aminoguanidine with acetylated aliphatic and eletron rich aromatic MBH adducts, using acetonitrile as solvent, the reaction afforded exclusively benzylidenic pyrazolidinones. However, when we investigated the reaction with acetylated eletron-poor aromatic MBH adducts, we observed the formation almost exclusively of pyrazolones, which are regioisomers of the previously obtained pyrazolidinones. These data indicated that under these conditions, the nature of the substituent group governed the selectivity of these reactions. Later, it was observed that by subjecting the pyrazolidinones to a solution of 2 equivalents of K2CO3 in methanol, they were completely converted to the corresponding pyrazolones, showing the influence of the nature of the solvent in these chemical transformations
Mestrado
Quimica Inorganica
Mestre em Química
Metabanzoulou, Jean-Pierre. "Mécanisme de la complexation de l'ion UO²⁺ par des di(acyl-4 pyrazolones-5), des éthers-couronnes, des diazapolyoxamacrocycles et des ligands apparentés." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376166100.
Full textLemire, Philippe. "Hydrolyse d’α-aminoesters et de 1-amino diesters phosphoniques par intramolécularité temporaire organocatalysée & Synthèse de pyrazolones et de triazolium-olates par isomérisation d’azométhine imines N,N’-cycliques." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38738.
Full textMetabanzoulou, Jean-Pierre. "Mecanisme de la complexation de l'ion uo : :(2)**(2+) par des di(acyl-4 pyrazolones-5), des ethers-couronnes, des diazapolyoxamacrocycles et des ligands apparentes." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13146.
Full textBooks on the topic "Pyrazolones"
Wiley, Richard H., and Paul F. Wiley. Pyrazolones, Pyrazolidones, and Derivatives. Wiley & Sons, Incorporated, John, 2009.
Find full textWiley, Richard H., and Paul F. Wiley. Pyrazolones, Pyrazolidones, and Derivatives. Wiley & Sons, Limited, John, 2007.
Find full textWiley, Richard H., and Paul F. Wiley. Chemistry of Heterocyclic Compounds, Pyrazolones, Pyrazolidones, and Derivatives. Wiley & Sons, Incorporated, John, 2008.
Find full textBook chapters on the topic "Pyrazolones"
Bien, E., and M. Witt. "Influence of Pyrazolones on Hepatic Glutathione in Rats." In Archives of Toxicology, 366–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-69928-3_75.
Full textCampi, Paolo, Mariangela Manfredi, and Maurizio Severino. "IgE-Mediated Allergy to Pyrazolones, Quinolones and Other Non- &Bg;; -Lactam Antibiotics." In Drug Hypersensitivity, 216–32. Basel: KARGER, 2007. http://dx.doi.org/10.1159/000104202.
Full textGooch, Jan W. "Pyrazolone Red." In Encyclopedic Dictionary of Polymers, 598. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9654.
Full textBährle-Rapp, Marina. "Phenyl Methyl Pyrazolone." In Springer Lexikon Kosmetik und Körperpflege, 424. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_7912.
Full textPardasani, R. T., and P. Pardasani. "Magnetic properties of cobalt(II) complex of 4-(sulfonylazido)phenylazo-pyrazolone." In Magnetic Properties of Paramagnetic Compounds, 943–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53971-2_502.
Full textPardasani, R. T., and P. Pardasani. "Magnetic properties of cobalt(II) complex of 4-(sulfonylazido)phenylazo-pyrazolone." In Magnetic Properties of Paramagnetic Compounds, 945–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53971-2_503.
Full textPardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) chloro complex with pyrazolone-hydrazide Schiff-base." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 4, 1139–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62474-6_468.
Full textPardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) bromo complex with pyrazolone-hydrazide Schiff-base." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 4, 1141–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62474-6_469.
Full textPardasani, R. T., and P. Pardasani. "Magnetic properties of polymeric chain assemblies of cobalt(II) with bis-pyrazolone." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 7, 531–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65895-6_197.
Full textPardasani, R. T., and P. Pardasani. "Magnetic properties of polymeric chain assemblies of copper(II) with bis-pyrazolone." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 7, 976–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65895-6_360.
Full textConference papers on the topic "Pyrazolones"
Zeoly, Lucas A., Rosimeire C. Barcelos, Manoel T. Rodrigues Jr., Lucimara J. Martins, and Fernando Coelho. "Synthesis of Substituted Pyrazolones from Morita-Baylis-Hillman Adducts." In 15th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_201391521329.
Full textKhan, Mohd Shahnawaz. "An expedient synthesis of some new Pyrazole, Pyrazolone, Hydrazone and Thiosemicarbazide." In The 20th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2016. http://dx.doi.org/10.3390/ecsoc-20-a026.
Full textAbubaker, Mariam, Che Wan Zanariah Che Wan Ngah, Musa Ahmad, and Bambang Kuswandi. "Colorimetric determination of Al(III) based on the aggregation of gold nanoparticles functionalized with novel 4-benzoyl pyrazolone derivative." In RECENT ADVANCEMENT ON APPLIED PHYSICS, INDUSTRIAL CHEMISTRY AND CHEMICAL TECHNOLOGY: Proceedings of the International Conference on Recent Advancements in Science and Technology 2017 (ICoRAST2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5041233.
Full textPratiwi, S., and A. H. Cahyana. "Synthesis of pyrazolone derivatives compound using nanomagnetic Fe3O4 catalyst from waste cooking oil and iron rust and antioxidant activity test." In PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0059243.
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