Relevant bibliographies by topics / Oxazóis

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  2. Dissertations / Theses
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  4. Conference papers

Academic literature on the topic 'Oxazóis'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Oxazóis"

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Pandit, Rameshwar Prasad, Jae-Jin Shim, Sung Hong Kim, and Yong Rok Lee. "Copper-catalyzed direct coupling of benzoxazin-2-ones with indoles for the synthesis of diverse 3-indolylbenzoxazin-2-ones: access to natural cephalandole A." RSC Advances 7, no. 87 (2017): 55288–95. http://dx.doi.org/10.1039/c7ra10634c.

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Yadav, Lal Dhar Singh, Ankita Rai, Vijai Kumar Rai, and Chhama Awasthi. "Cu(OTf)2-catalysed synthesis of structurally novel bicyclic 1,3-oxazines via condensation-dehydrazinative ring transformation cascades." Journal of Chemical Research 2009, no. 8 (2009): 520–26. http://dx.doi.org/10.3184/030823409x466753.

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The Cu(OTf)2-catalysed expeditious synthesis of 1,3-oxazin-2-ones(thiones) from unprotected D-glucose and D-xylose in excellent yields is reported. Cu(OTf)2 plays a dual role of a Lewis acid and an oxidant for dehydrazination, which is the cornerstone in the present investigation. The 1,3-oxazin-2-ones(thiones) serve as synthons for diversity oriented synthesis of structurally distinct bicyclic 1,3-oxazin-2-ones(thiones), when subjected to Malaprade reaction, followed by Cu(OTf)2-catalysed cyclisation with an appropriate traditional reagent such as phenylhydrazine, amidines, hydroxylamine, or
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Annor-Gyamfi, Joel K., and Richard A. Bunce. "4H-Benzo[d][1,3]oxazin-4-ones and Dihydro Analogs from Substituted Anthranilic Acids and Orthoesters." Molecules 24, no. 19 (2019): 3555. http://dx.doi.org/10.3390/molecules24193555.

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A one-pot route to 2-alkyl and 2-aryl-4H-benzo[d][1,3]oxazin-4-ones (also known as 4H-3,1-benzoxazin-4-ones) has been developed and studied. The method involves the reaction of aryl-substituted anthranilic acids with orthoesters in ethanol catalyzed by acetic acid. Additionally, we have also investigated the reaction under microwave conditions. Not all of the substrates were successful in yielding the target heterocycles as some of the reactions failed to undergo the final elimination. This process led to the isolation of (±)-2-alkyl/aryl-2-ethoxy-1,2-dihydro-4H-benzo[d][1,3]oxazin-4-ones. The
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El-Shahawi, Manal M., and Ahmed K. El-Ziaty. "Enaminonitrile as Building Block in Heterocyclic Synthesis: Synthesis of Novel 4H-Furo[2,3-d][1,3]oxazin-4-one and Furo[2,3-d]pyrimidin-4(3H)-one Derivatives." Journal of Chemistry 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/5610707.

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2-Amino-4,5-diphenylfuran-3-carbonitrile 1 was utilized as building block for the construction of new furo[2,3-d]pyrimidin-4(3H)-one derivative 2 and 4H-furo[2,3-d][1,3]oxazin-4-one derivative 3 via treatment with acetic anhydride and benzoyl chloride, respectively. The 4H-furo[2,3-d][1,3]oxazin-4-one derivative 3 was transformed into novel furo[2,3-d]pyrimidin-4(3H)-ones 4–8, tetrazolylfuran derivative 10, and furo[3,2-d]imadazolone derivative 11 via reaction with various nitrogen nucleophiles. The structure features of the synthesized compounds were established from their spectral and elemen
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Chovatiya, Pankaj, Charmy Mehta, Hardik Senjani, Anamik Shah, and Hitendra S. Joshi. "Synthesis and Characterization of some New Schiff Bases of 2-Oxonaphtho[2,1-b][1,4]Oxazine." International Letters of Chemistry, Physics and Astronomy 31 (March 2014): 26–30. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.31.26.

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The literature review reveal that [1,4]-oxazine derivatives represent one of the most active classes of compounds possessing wide spectrum of biodynamic activities and use as potent therapeutic agents. In the present work, a series of Schiff base of 2-(2,3-dihydro-2-oxonaphtho[2,1-b][1,4]oxazin-1-yl)acetohydrazide, 5a-5j has been synthesized using 1-aminonaphthalen-2-ol. Various aromatic aldehyde were react with carbohydrazide 4 in the presence of acid to produce the 2-oxonaphtho[2,1-b][1,4]oxazin Schiff base derivatives with good yields. All synthesized compounds were characterized by IR, NMR
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Singh, Shambhu Nath, Sarva Jayaprakash, K. Venkateshwara Reddy, Ali Nakhi, and Manojit Pal. "A metal catalyst-free and one-pot synthesis of (3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)methanol derivatives in water." RSC Advances 5, no. 103 (2015): 84889–93. http://dx.doi.org/10.1039/c5ra14478g.

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Walter, Magnus W., Neh Thaker, Jack E. Baldwin, Matthias Müller, and Christopher J. Schofield. "The reaction of Tms-Cf3 with Amino Acid Derived Ring-Templates: Studies with Oxazin-2-Ones and Oxazolidin-5-Ones." Journal of Chemical Research 2000, no. 7 (2000): 310–11. http://dx.doi.org/10.3184/030823400103167606.

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Shokol, Tetyana, Natalia Gorbulenko, and Volodymyr Khilya. "Synthesis of chromones, annulated with oxygen-containing heterocycles with two hetero atoms at C(7)-C(8) bond." French-Ukrainian Journal of Chemistry 7, no. 1 (2019): 121–39. http://dx.doi.org/10.17721/fujcv7i1p121-139.

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The present review represented the advanced synthetic strategies for chromones annulated at the C(7)-C(8) bond with five-membered, six-membered, and seven-membered oxygen-containing heterocycles with two heteroatoms, such as 6H-[1,3]dioxolo[4,5-h]chromen-6-one, 2,3-dihydro-7H-[1,4]dioxino[2,3-h]chromen-7-one, 3,4-dihydro-2H,8H-[1,4]dioxepino[2,3-h]chromen-8-one, 2,3-dihydro-1H,7H-chromeno[7,8-b][1,4]oxazin-7-one, 4H,12H-pyrano[2,3-a]phenoxazine-4-one and 9,10-dihydro-4H,8H-chromeno[8,7-e][1,3]oxazin-4-one. The biological activity of naturally occurring and modified synthetic fused hetarenochro
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Loakes, D., D. M. Brown, N. Mahmood, J. Balzarini, and E. De Clercq. "Antiviral Activity of Bicyclic Pyrimidine Nucleosides." Antiviral Chemistry and Chemotherapy 6, no. 6 (1995): 371–78. http://dx.doi.org/10.1177/095632029500600604.

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A number of pyrimidine nucleosides, which may show two hydrogen bonding modes, have been prepared and tested for antiviral activity against a series of viruses. Whilst none of the compounds described showed significant activity against human immunodeficiency virus (HIV), the bicyclic 2′-deoxynucleoside, [2], derived from the base 6H,8H-3,4-dihydropyrimido[4,5-c][1,2]oxazin-7-one, was shown to inhibit herpes simplex virus type 1 (HSV-1) at similar concentrations as BVDU1 and ACV. Compounds 13, 6-(2-deoxyribofuranosyl)-6H,8H-2-methyl-3,4-dihydropyrimido[4,5-c][1,2]oxazin-7-one, and 14, N4-hydrox
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Beyer, H., S. Melde, and K. Dittrich. "Hydrazine des Thiophens und Oxazols." Zeitschrift für Chemie 1, no. 6 (2010): 191. http://dx.doi.org/10.1002/zfch.19610010612.

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Dissertations / Theses on the topic "Oxazóis"

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Abegão, Luis Miguel Gomes. "Propriedades ópticas não lineares de compostos orgânicos : chalconas e corantes de oxazóis." Universidade Federal de Sergipe, 2017. https://ri.ufs.br/handle/riufs/5276.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The most recent developments in the field of nonlinear optics (NLO) show that organic molecules with electron donating or accepting substituents at either ends of a long -conjugation could be promising candidates for integration into photonic devices or applications such 3D microfabrication, optical-limiting, photodynamic therapy, biological probes, etc. Linear and nonlinear optical measurements were carried out for two classes of organic molecules: chalcones and oxazoles. Second- and third-order nonlinear optical pro
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Tyler, Simon Nicholas George. "Asymmetric synthesis using enantiopure dihydro-2H-1,4-oxazin-2-one templates." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266800.

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Locher, René. "Spektroskopische Eigenschaften von Oxazin-4 als Funktion der Temperatur und der Matrix /." [S.l.] : [s.n.], 1991. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=9384.

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Akuche, Christiana Ifeyinwa. "A novel antibacterial agent by design, 2-carboxymethyl-5-hydroxy-1,2-oxazin-3-one." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24079.pdf.

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Cosway, Sarah M. "Desymmetrization of Meso-epoxides and related structures via Oxazin-2-one generation and modification : a general approach to cyclic and acyclic #alpha#-amino acids." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266045.

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Sa, Marcus Cesar Mandolesi. "Reatividade de vinil azidas E1 - azirinas contendo um grupo metileno ativado frente a reagentes carbonilados em meio basico : parte 1: sintese de compostos aciclicos polifuncionais. parte 2: preparação de 3-oxazolinas-5-acetato e outros derivados de oxazois." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250621.

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Orientador: Albert James Kascheres<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-20T00:26:06Z (GMT). No. of bitstreams: 1 Sa_MarcusCesarMandolesi_D.pdf: 4119549 bytes, checksum: 387fb41e204e5012cca0f564278ed709 (MD5) Previous issue date: 1995<br>Doutorado
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Le, Falher Laetitia. "Préparation et dérivatisation de 4H-pyrido[e][1,3]oxazinones : une contribution à la diversité chimique." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066344.

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Ce manuscrit porte sur la synthèse et les applications d'une nouvelle série de composés hétéroaromatiques : les 4H-pyrido[e][1,3]oxazin-4-ones. La première partie de ce manuscrit présente la préparation de ces squelettes via une réaction d'O-arylation intramoléculaire. La seconde partie du manuscrit repose sur la réactivité de ces entités chimiques et de leur utilisation en tant qu'intermédiaires de synthèse. La fonctionnalisation des 4H-pyrido[e][1,3]oxazin-4-ones, via des réactions de couplage pallado-catalysées, a permis d'obtenir des systèmes polyfonctionnalisés plus complexes. Les pyrido-
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Bihel, Frédéric. "Innovation moléculaire appliquée à la maladie d'Alzheimer : conception, synthèse, et évaluation biologique de nouveaux composés 3-Alkoxy-4-chloro-Isocoumarine et 3,4-Dihidro-5-Bromo-[1-4]Oxazin-2-One." Aix-Marseille 2, 2002. http://www.theses.fr/2002AIX22110.

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MONNIER, KARIN, and B. LAUBE. "Reactivite en cycloaddition 4+2 et 3+2 de sels de composes de reissert et de derives de la 1,4-oxazin-2-one. Etude de la regio- et de la stereochimie des cycloadduits." Besançon, 1993. http://www.theses.fr/1993BESA2011.

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Ce travail de these s'articule en deux parties. Dans la premiere, nous presentons une etude de la reactivite des tetrafluoroborates de deux composes de reissert. L'un d'eux issu de l'isoquinoleine, avait fait l'objet de nombreuses etudes. Nous avons etudie sa reactivite sur des dienophiles et/ou dipolarophiles moins classiques que ceux qui avaient deja ete employes. Cette etude nous a permis a la fois de nuancer, et de confirmer les etudes anterieures sur les tetrafluoroborates de composes de reissert derives de l'isoquinoleine. Contrairement a ce qu'affirmait mcewen, sa cycloaddition avec les
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Afarinkia, Kamyar, A. Bahar, M. J. Bearpark, et al. "An Investigation of the Diels-Alder Cycloadditions of 2(H)-1,4-Oxazin-2-ones." 2005. http://hdl.handle.net/10454/3750.

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No<br>Forumla chem. . A variety of 5-chloro-2(H)-1,4-oxazin-2-ones bearing a range of substituents at their 3- and 6-positions undergo Diels-Alder cycloaddition as a 2-azadiene component with electron-rich, electron-deficient, and electron-neutral dienophiles. These reactions proceed with moderate regio- and stereoselectivity to afford relatively stable and readily isolable bridged bicyclic lactone cycloadducts. Chemical manipulation of these cycloadducts affords highly substituted and functionally rich piperidines. The regio- and stereochemical preferences of the cycloadditions of 5-chloro-2(
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Book chapters on the topic "Oxazóis"

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Plisson, Christophe, Joaquim Ramada-Magalhaes, and Jan Passchier. "Synthesis of Carbon-11 Labeled (+)-4-Propyl-3,4,4a,5,6,10b-Hexahydro-2H-Naphtho[1,2-B][1,4]Oxazin-9-Ol ([11C]-(+)-PHNO)." In Radiochemical Syntheses. John Wiley & Sons, Inc, 2015. http://dx.doi.org/10.1002/9781118834114.ch9.

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Li, Huanhuan, Kailin Han, Qiannan Guo, Fengxi Liu, Peng Yu, and Yuou Teng. "Design, Synthesis and Biological Evaluation of the Novel Antitumor Agent 2H-benzo[b][1, 4]oxazin-3(4H)-one and Its Derivatives." In Lecture Notes in Electrical Engineering. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7618-0_382.

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Wolkenberg, S. E., and R. M. Garbaccio. "5,6-Diphenyltetrahydro-1,4-oxazin-2-one Alkylation." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00424.

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Sako, M. "From 4-Pyrido[3,4-][1,3]oxazin-4-ones." In Six-Membered Hetarenes with Two Identical Heteroatoms. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-016-01556.

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von Angerer, S. "Reaction of 1,3-Oxazin-4-ones with Ammonia." In Science of Synthesis Knowledge Updates KU 2011/1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-116-00281.

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von Angerer, S. "Rearrangement of 2-Amino-1,3-oxazin-4-ones." In Science of Synthesis Knowledge Updates KU 2011/1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-116-00282.

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von Angerer, S. "Reaction of 1,3-Oxazin-4-ones with Thioamides." In Science of Synthesis Knowledge Updates KU 2011/1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-116-00283.

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von Angerer, S. "Reaction of 1,3-Oxazin-6-ones with Ammonia." In Science of Synthesis Knowledge Updates KU 2011/1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-116-00284.

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Wolkenberg, S. E., and R. M. Garbaccio. "3,6-Dihydro-2-1,4-oxazin-2-one Alkylation." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00425.

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Surman, M. D., and R. H. Hutchings. "Cycloaddition of 6-1,3-Oxazin-6-ones with Cyclopropenes." In Six-Membered Hetarenes with Two Unlike or More than Two Heteroatoms and Fully Unsaturated Larger-Ring Heterocycles. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-017-01171.

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Conference papers on the topic "Oxazóis"

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Gangloff, Anthony R., Jason Brown, Ron De Jong, et al. "Abstract 5676: Discovery of novel benzo[b][1,4]oxazin-3(4H)-ones as poly(ADP-Ribose)polymerase inhibitors." In Proceedings: AACR 104th Annual Meeting 2013; Apr 6-10, 2013; Washington, DC. American Association for Cancer Research, 2013. http://dx.doi.org/10.1158/1538-7445.am2013-5676.

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Kushch, S. O., M. V. Goryaeva, Ya V. Burgart, O. G. Khudina, and V. I. Saloutin. "Three-component approach to hexahydropyrido-[2,1-b] [1,3]-oxazin-6-ones and cyclohex-2-en-1-ones based on polyfluoroalkyl-3-oxo esters, methyl ketones, and 3-amino-1-propanol." In VIII Information school of a young scientist. Central Scientific Library of the Urals Branch of the Russian Academy of Sciences, 2020. http://dx.doi.org/10.32460/ishmu-2020-8-0011.

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Найдены конкурентные пути трехкомпонентной циклизации полифторалкил-3-оксоэфиров и метилкетонов с 3-амино-1-пропанолом в зависимости от условий. Показано, что в 1,4-диоксане реакции приводят к гексагидро- пиридо-[2,1-b][1,3]-оксазин-6-онам, а в этаноле к – циклогекс-2-ен-1-онам.редложен механизм превращений полифторалкил-3-оксоэфиров и метилкетонов с 3-амино-1-пропанолом.
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