Relevant bibliographies by topics / Benzofurannes

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Academic literature on the topic 'Benzofurannes'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Benzofurannes"

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Qiu, Renhua, Nobuaki Kambe, Zhi Tang, Zhou Tong, and Shuang-Feng Yin. "Recent Advances on Benzofuranones: Synthesis and Transformation via C–H Functionalization." Synthesis 53, no. 18 (2021): 3193–210. http://dx.doi.org/10.1055/a-1405-5761.

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AbstractThe benzofuranone structure is important in many fields, such as natural products, pharmaceuticals, building blocks, antioxidants, and dyes. The efficient synthesis and transformation of benzofuranones have attracted great attention in organic synthesis. They can be synthesized by the Friedel–Crafts reaction and intramolecular dehydration ring-closing and transition-metal-catalyzed reactions, among others. Their direct utilization in the preparation of other functional molecules further enhance their application. Due to their low pK a value and easy enolization, the transformation of b
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Binon, F., and C. Goldenberg. "Recherches dans la Serie des Benzofurannes. XIV. Spectres Infra-Rouges D'Alcoyl-2 Benzofurannes." Bulletin des Sociétés Chimiques Belges 74, no. 7-8 (2010): 306–14. http://dx.doi.org/10.1002/bscb.19650740703.

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Descamps, M., F. Binon, and J. Der Van Elst. "Recherches Dans la Série Des Benzofurannes IX. Sur la formation de chalcones à partir d'acétyl ou de formyl (-2 ou-3) benzofurannes." Bulletin des Sociétés Chimiques Belges 72, no. 7-8 (2010): 513–23. http://dx.doi.org/10.1002/bscb.19630720705.

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Goldenberg, C., and F. Blnon. "Recherches dans la Série des Benzofurannes. XVI. Spectres Infra-Rouges D'Esters de L'Acide Coumarylique." Bulletin des Sociétés Chimiques Belges 75, no. 3-4 (2010): 129–44. http://dx.doi.org/10.1002/bscb.19660750302.

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Zhang, Xiaojie, and Christopher M. Beaudry. "Regioselective Synthesis of Benzofuranones and Benzofurans." Journal of Organic Chemistry 86, no. 9 (2021): 6931–36. http://dx.doi.org/10.1021/acs.joc.1c00341.

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Descamps, M., F. Binon, and J. Der Van Elst. "Recherches Dans la Série Des Benzofurannes XI-Synthèse de pyrazoles et d'isoxazoles a partir de composés céto-3 benzofuranniques." Bulletin des Sociétés Chimiques Belges 73, no. 5-6 (2010): 459–82. http://dx.doi.org/10.1002/bscb.19640730515.

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Bera, Sourav Sekhar, Suvankar Debbarma, Sripati Jana, and Modhu Sudan Maji. "Cobalt(III)-Catalyzed Construction of Benzofurans, Benzofuranones and One-Pot Orthogonal C−H Functionalizations to Access Polysubstituted Benzofurans." Advanced Synthesis & Catalysis 360, no. 11 (2018): 2204–10. http://dx.doi.org/10.1002/adsc.201800298.

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Bera, Sourav Sekhar, Suvankar Debbarma, Sripati Jana, and Modhu Sudan Maji. "Cover Picture: Cobalt(III)-Catalyzed Construction of Benzofurans, Benzofuranones and One-Pot Orthogonal C−H Functionalizations to Access Polysubstituted Benzofurans (Adv. Synth. Catal. 11/2018)." Advanced Synthesis & Catalysis 360, no. 11 (2018): 2062. http://dx.doi.org/10.1002/adsc.201800646.

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Neog, Kashmiri, Babulal Das, and Pranjal Gogoi. "2,3-Diaroyl benzofurans from arynes: sequential synthesis of 2-aroyl benzofurans followed by benzoylation." Organic & Biomolecular Chemistry 16, no. 17 (2018): 3138–50. http://dx.doi.org/10.1039/c8ob00631h.

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A cascade synthetic strategy for the direct synthesis of 2-aroyl benzofurans from aryne precursors has been described. The synthesized 2-aroyl benzofurans were further benzoylated for the synthesis of 2,3-diaroyl benzofurans.
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Rádl, Stanislav, Petr Hezký, Jitka Urbánková, Petr Váchal, and Ivan Krejčí. "Synthesis and Analgesic Activity of Some 1-Benzofurans, 1-Benzothiophenes and Indoles." Collection of Czechoslovak Chemical Communications 65, no. 2 (2000): 280–96. http://dx.doi.org/10.1135/cccc20000280.

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3-Unsubstituted 1-benzofurans 1e and 1f, 3-methyl-1-benzofurans 1a-1d, and 3-amino-1-benzofurans 2a-2l, as well as 3-amino-1-benzothiophenes 3a, 3b and 3-aminoindoles 4a-4f, 11a, and 11b were prepared and tested as analgesics. The 3-amino-1-benzofurans 2 were prepared from the corresponding 2-hydroxybenzonitriles 5 and phenacyl bromides 6 via intermediates 7. Similar treatment of 2-sulfanylbenzonitrile (8) provided 3-amino-1-benzothiophenes 3. Appropriately substituted 2-aminobenzonitriles 9 then provided N-substituted 3-aminoindoles 4. 1-(Ethoxycarbonyl)indoles 4e and 4f were successfully dep
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Dissertations / Theses on the topic "Benzofurannes"

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Chopin, Nathalie. "Etude de la dienophilie des benzofurannes et indoles. Application à la synthèse d’analogues de la galanthamine." Rouen, 2008. http://www.theses.fr/2008ROUES017.

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La réaction de Diels-Alder fait partie des moyens convergents pour assembler des hétérocycles de façon efficace et stéréosélective. Du fait de leur caractère aromatique riche en électrons, les benzofurannes et les indoles sont rarement utilisés en tant que diénophiles en réaction de cycloaddition [4+2] à demande électronique normale. Néanmoins, nous avons montré que, si les substrats benzofuranniques étaient correctement substitués par un groupement électroattracteur en position 3, la réaction conduit à un cycloadduit tricyclique désaromatisé portant un carbone quaternaire en jonction de cycle
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Mahmood, Raza. "Synthesis of benzofurans and benzopyrans." Thesis, University of Hertfordshire, 2002. http://hdl.handle.net/2299/14039.

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Syntheses of 2,3-dihydrobenzofurans and 3,4-dihydrobenzopyrans normally involve several stages, therefore efficient syntheses of these compounds are desirable. A number of 3,4-dihydrobenzopyrans derivatives were prepared in one pot syntheses. The reaction is thought to proceed through cation intermediates, involving allylic cations generated by the reaction of allyl alcohols, 1,3-dienes, or diols in the presence of acids such as trifluoroacetic acid (TFA), or in a solution of glacial acetic and a metal catalyst or glacial acetic acid and sulphuric acid, followed by reaction with nucleophiles s
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Guthrie, Emma Jayne. "Novel routes to benzofurans using titanium-alkylidene chemistry." Thesis, University of Glasgow, 2001. http://theses.gla.ac.uk/3476/.

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The first route looked at the alkylidenation of esters i to give -alkoxyvinylstannanes ii. A cross-coupling reaction would have given enol ester products iii, followed by an acid-induced cyclisation to give the desired benzofurans iv. (Fig. 13510A) The approach was not successful, but during the course of investigating the route, we formed the novel dimetallic reagent v, the properties of which we examined. (Fig. 13510B) We looked at a second route that involved the use of thioacetals vi. Alkylidenation of esters i was carried out followed in one case by cyclisation of the enol ethers vii form
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Brant, Antonio Jedson Caldeira. "Flavonóides, cumarinas e benzofuranos como marcadores quimiotaxonômicos em Asteraceae." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-02102008-085120/.

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Este trabalho descreve as ocorrências naturais de flavonóides, cumarinas e benzofuranos na família de plantas, Asteraceae / Compositae. Tem como objetivo principal classificar os referidos metabólitos secundários como possíveis marcadores quimiotaxonômicos da família bem como fazer previsões de suas ocorrências naquela. Para sua realização, foi montado um banco de dados de ocorrências desses produtos naturais a partir da literatura especializada. Os números de ocorrências das três classes químicas (flavonóides, 4369;cumarinas, 961; benzofuranos, 628) foram avaliados através de programas comput
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Bolteau, Raphaël. "Conception, synthèse et évaluation pharmacologique d’antagonistes des récepteurs A2A et de ligands duaux ciblant les récepteurs A2A et mGlu5." Thesis, Lille 2, 2020. http://www.theses.fr/2020LIL2S006.

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Ces cinquante dernières années ont été marquées par la percée des maladies neurodégénératives comme la maladie d’Alzheimer. À ce jour, il existe uniquement des traitements symptomatiques. De plus, face à cette maladie multifactorielle, il apparaît donc nécessaire d’identifier et d’étudier de nouvelles cibles thérapeutiques. Parmi elles, le récepteur à l’adénosine A2A (A2AR) a fait l’objet de nombreuses études ces dernières années. En effet, ses antagonistes tels que la caféine ont montré de nombreux effets bénéfiques en permettant d’améliorer les performances cognitives par une diminution des
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Dolmazon, René. "Synthèse et propriétés de dérivés de benzopyrannones-4 et de benzofurannones-3." Lyon 1, 1985. http://www.theses.fr/1985LYO10006.

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Synthese de tetrahydro-5,6,7,8 chromannones-4 et de tetrahydro-4a,5,6,7,8,8a chromannones-4 par acylation de morpholino-1 cyclohexenes (a) par des chlorures d'acides alpha -ethylenique ou par acylation de beta -cetoesters ; synthese d'hexahydro-2,3,4,5,6,7 benzofurannones-3 par acylation de a par des chlorures d'acides alpha -acetoxyles ; reduction des composes prepares, configuration, reactions avec des arenals et des hydrazines
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Taralunga, Mihaela. "Oxydation catalytique de composés aromatiques chlorés représentatifs de polluants organiques persistants (POP)." Poitiers, 2005. http://www.theses.fr/2005POIT2295.

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Le sujet de cette thèse s'inscrit dans le cadre de la protection de l'environnement et de la dépollution atmosphérique, plus particulièrement l'élimination par voie catalytique des Polluants Organiques Persistants (POP) dont les représentants les plus célèbres sont les dioxines et furanes. Des molécules modèles telles que le chlorobenzène, le 1,2-dichlorobenzène et le benzofurane ont été utilisées pendant cette étude. Parmi les catalyseurs testés les Pt/Faujasite s'avèrent être des catalyseurs actifs et sélectifs à base température (T ~ 300- 350°C) pour l'oxydation catalytique des chlorobenzèn
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Afxantidis, Jean. "Etudes de la synthèse de l'indole, du benzofurane et du benzothiophène." Aix-Marseille 3, 1993. http://www.theses.fr/1993AIX30048.

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La synthese de l'indole, du benzofurane et du benzothiophene est l'un des sujets les plus anciens de la chimie organique. Mais, comme le montre l'etude bibliographique, la recherche d'une voie de synthese simple de ces composes, a partir de molecules accessibles industriellement, est toujours un sujet d'actualite. La seconde partie de ce memoire est consacree a l'etude de la synthese de l'indole par pyrolyse de l'acetate de l'anilino ethanol et a l'application de la methode a la synthese du benzofurane et du benzothiophene. Un essai d'optimisation par la methode des reseaux uniformes de doehle
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Selouane, Abdelmajid. "Synthèse asymétrique de nucléosides aromatiques dérivés du benzo [c]furane et de l'isochromane." Amiens, 2004. http://www.theses.fr/2004AMIE0407.

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Richard, Frédéric. "Acylation de composés benzofuraniques en présence de zéolithes." Poitiers, 1997. http://www.theses.fr/1997POIT2266.

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L'acylation du benzofurane et de deux de ses derives (2-methylbenzofurane et 2-acetylbenzofurane) par l'anhydride acetique est realisee avec une bonne selectivite a l'aide de catalyseurs zeolithiques. Dans chaque cas, le produit final peut etre isole selon une methode facile a mettre en uvre. Le catalyseur peut etre recupere, regenere selon la procedure habituelle de pretraitement sous air, et reutilise. Les reactions sont etudiees en presence de diverses zeolithes y et on reporte egalement quelques essais realises en presence d'autres zeolithes (notamment des zeolithes beta). Les reactions so
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Books on the topic "Benzofurannes"

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Humans, IARC Working Group on the Evaluation of Carcinogenic Risks to. Polychlorinated dibenzo-para-dioxins and polychlorinated dibenzofurans. IARC Press, 1997.

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1957-, Kumar M., and Gupta V. 1966-, eds. Heterocyclic chemistry. Springer, 1998.

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Mustafa, Ahmed. Benzofurans. Wiley & Sons, Incorporated, John, 2009.

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Erkki, Yrjänheikki, World Health Organization. Regional Office for Europe., and World Health Organization, eds. Levels of PCBs, PCDDs, and PCDFs in breast milk: Results of WHO-coordinated interlaboratory quality control studies and analytical field studies. Published on behalf of the World Health Organization, Regional Office for Europe by FADL, 1989.

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1920-, Kuratsune Masanori, ed. Yusho: A human disaster caused by PCBs and related compounds. Kyushu University Press, 1996.

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(Contributor), WHO, ed. Polychlorinated Dibenzo-para-Dioxins and Polychlorinated Dibenzofurans (IARC Monographs on Eval of Carcinogenic Risk to Humans). World Health Organisation, 1997.

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Christoffer, Rappe, Choudhary Gangadhar 1935-, Keith Lawrence H. 1938-, and American Chemical Society Meeting, eds. Chlorinated dioxins and dibenzofurans in perspective. Lewis Publishers, 1986.

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Chlorinated Dioxins and Dibenzofurans in Perspective. Taylor & Francis Group, 2017.

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Gupta, Radha R., Vandana Gupta, and Mahendra Kumar. Heterocyclic Chemistry II: Five-Membered Heterocycles (Heterocyclic Chemistry). Springer, 1999.

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Polybrominated Dibenzo-p-dioxins & Dibenzofurans (Environmental Health Criteria). World Health Organization, 1998.

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Book chapters on the topic "Benzofurannes"

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Yeung, Kap-Sun. "Furans and Benzofurans." In Topics in Heterocyclic Chemistry. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/7081_2012_79.

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Butin, Alexander V., Igor V. Trushkov, Olga V. Serdyuk, and Vladimir T. Abaev. "Fluorinated Furans and Benzofurans." In Fluorine in Heterocyclic Chemistry Volume 1. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04346-3_5.

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Proksch, P., and R. Siebertz. "Eupatorium cannabinum L. (Hemp Agrimony): In Vitro Culture and the Production of Benzofurans." In Medicinal and Aromatic Plants IV. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77004-3_10.

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"Benzofuranones." In Chemistry of Heterocyclic Compounds: A Series Of Monographs. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186992.ch5.

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Unger, Thomas A. "Benzofurans." In Pesticide Synthesis Handbook. Elsevier, 1996. http://dx.doi.org/10.1016/b978-081551401-5.50648-1.

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"Benzofurans." In Chemistry of Heterocyclic Compounds: A Series Of Monographs. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186992.ch1.

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von Angerer, S. "Of Benzofurans." 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-017-01023.

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"Hydrogenated Benzofurans." In Chemistry of Heterocyclic Compounds: A Series Of Monographs. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186992.ch4.

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Greene, Shaun L. "Benzofurans and Benzodifurans." In Novel Psychoactive Substances. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-415816-0.00016-x.

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Griesbeck, A. G. "Oxidation of Benzofurans." In Quinones and Heteroatom Analogues. Georg Thieme Verlag KG, 2006. http://dx.doi.org/10.1055/sos-sd-028-00596.

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