Academic literature on the topic 'Nucleophile Substitutionen'

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Journal articles on the topic "Nucleophile Substitutionen"

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Pritzkow, Wilhelm. "Nucleophile Substitutionen nach dem Eliminierungs-Additions-Mechanismus." Zeitschrift für Chemie 10, no. 9 (2010): 330–38. http://dx.doi.org/10.1002/zfch.19700100903.

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Lippmann, Eberhard, Andreas Könnecke, and Gerhard Beyer. "Nucleophile Substitutionen am 2-Phenyl-5-chlormethyl-tetrazol." Zeitschrift für Chemie 15, no. 3 (2010): 102–3. http://dx.doi.org/10.1002/zfch.19750150307.

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Vilotijevic, Ivan, Markus Lange, and You Zi. "Latent (Pro)Nucleophiles in Enantioselective Lewis Base Catalyzed Allylic Substitutions." Synlett 31, no. 13 (2020): 1237–43. http://dx.doi.org/10.1055/s-0040-1707130.

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The use of latent nucleophiles, which are molecules that are not nucleophilic but can be activated to act as a nucleophile at an opportune time during the reaction, expands the scope of Lewis base catalyzed reactions. Here, we provide an overview of the concept and show examples of applications to N- and C-centered nucleophiles in allylic substitutions. N- and C-silyl compounds are superior latent (pro)nucleophiles in Lewis base catalyzed reactions with allylic fluorides in which the formation of the strong Si–F bond serves as the driving force for the reactions. The latent (pro)nucleophiles e
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Rueping, Magnus, Boris J Nachtsheim, Stefan A Moreth, and Michael Bolte. "Asymmetrische Brønsted-Säure-Katalyse: enantioselektive nucleophile Substitutionen und 1,4-Additionen." Angewandte Chemie 120, no. 3 (2008): 603–6. http://dx.doi.org/10.1002/ange.200703668.

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Cotarca, Livius, R. Bacaloglu, C. Csunderlik, N. Marcu, and A. Tarnaveanu. "Nucleophile Substitutionen an Kohlensäurederivaten. XX. Aminolyse des Bis(trichlormethyl)carbonates." Journal für Praktische Chemie 329, no. 6 (1987): 1052–62. http://dx.doi.org/10.1002/prac.19873290616.

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Schubert, Hermann, Helmut Simon, and Alfred Jumar. "Weitere nucleophile Substitutionen an alkylierten 4-Nitro-5-chlor-imidazolen." Zeitschrift für Chemie 8, no. 2 (2010): 62–63. http://dx.doi.org/10.1002/zfch.19680080208.

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Beger, J., R. Neumann, K. Gloe, and P. Mühl. "Nucleophile Substitutionen an Bischlornitrosoverbindungen. IV. Sulfonylaminooxime als Extraktionsmittel für Kupfer(II)." Journal für Praktische Chemie 330, no. 5 (1988): 683–94. http://dx.doi.org/10.1002/prac.19883300503.

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Beger, J., and R. Neumann. "Nucleophile Substitutionen an Bischlornitrosoverbindungen. V. Mehrfunktionelle neutrale Komplex-Liganden mit Oximendgruppen." Journal f�r Praktische Chemie 331, no. 2 (1989): 354–60. http://dx.doi.org/10.1002/prac.19893310223.

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Cotarca, Livius, Radu Bacaloglu, Nicolae Marcu, and Alexandru Târnaveanu. "Nucleophile Substitutionen an Kohlensäurederivaten. XIX. Alkoholyse und Hydrolyse des Bis(trichlormethyl)carbonates." Journal für Praktische Chemie 327, no. 6 (1985): 881–86. http://dx.doi.org/10.1002/prac.19853270602.

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Tsuji, Yutaka, and John P. Richard. "Swain–Scott relationships for nucleophile addition to ring-substituted phenonium ions." Canadian Journal of Chemistry 93, no. 4 (2015): 428–34. http://dx.doi.org/10.1139/cjc-2014-0337.

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The products of the reactions of 2-(4-methoxyphenyl)ethyl tosylate (MeO-1-OTs) and 2-(4-methyphenyl)ethyl tosylate (Me-1-OTs) with nucleophilic anions were determined for reactions in 50:50 (v/v) trifluoroethanol (TFE) / water at 25 °C. In many cases, the nucleophile selectivity kNu/ks ((mol/L)−1) for reactions of nucleophile and solvent, calculated from the ratio of product yields, depends upon [Nu−]. This demonstrates the existence of competing reaction pathways, which show different selectivities for reactions with nucleophiles. A 13C NMR analysis of the products of the reactions of substra
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Dissertations / Theses on the topic "Nucleophile Substitutionen"

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Joo, Young-Hyuk. "Synthesen und Reaktionen von organischen Polyaziden." Doctoral thesis, Universitätsbibliothek Chemnitz, 2007. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200701179.

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In der vorliegenden Arbeit wird die Darstellung neuer organischer Polyazide dokumentiert, die durch einfache nucleophile Substitution mittels NaN3 dargestellt werden können. Organische Azide mit der Formel RN3 können sich unter Stickstoff-Abspaltung in exothermen, teilweise explosionsartigen Reaktionen zersetzen. Sie sind daher prinzipiell als energiereiche Materialien (HEDM) für entsprechende Anwendungen geeignet. Die als Treibladungsmaterialien potentiell geeignetsten, handhabungssicheren, dendritischen Polyazide werden unter anderem mittels Thermogravimetrie und Differenzkalorimetrie analys
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Antonsson, Rositha. "Nucleophilic aromatic substitutions using ethyl 3-mercaptopropionate as nucleophile : Scope and limitations." Thesis, Södertörn University College, School of Life Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-1517.

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<p>The scope and limitations of nucleophilic substitutions of aryl halides have been studied using ethyl 3-mercaptopropionate as nucleophile and microwave heating. A diversity of aromatic compounds have been investigated according to different types of leaving groups, regio isomers and substituents. Experimental design has been used as a tool to optimize the reaction. An electron-withdrawing group in ortho or para position of the leaving group proved to be necessary for a positive outcome of the reaction. Fluorine was, without competition, the best leaving group. Some examples of how the synth
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PERROTEY, ANNE. "Substitution nucleophile et lithiation d'arenetricarbonylchrome." Paris 6, 1996. http://www.theses.fr/1996PA066325.

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Dans la premiere partie de ce travail, nous avons etudie la regioselectivite de l'addition d'anions stabilises de nitriles ou d'esters sur le complexe de la benzophenone et de ses derives dans le but de synthetiser un precurseur du ketoprofene. Nous avons ensuite envisage une autre voie de synthese du ketoprofene: une substitution nucleophile ipso d'un atome d'halogene. Dans un premier temps, nous avons etudie la regioselectivite de la lithiation du complexe de la benzophenone protegee par un acetal (premiere etape avant l'halogenation). Dans la deuxieme partie, nous avons tente de lithier dia
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KHOURZOM, RAMI. "Les complexes arenetricarbonylchrome : substitution nucleophile aromatique." Paris 6, 1990. http://www.theses.fr/1990PA066564.

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Les travaux realises au cours de cette these permettent d'illustrer les proprietes originales des complexes arenetricarbonylchrome. Les anions en alpha d'un groupement sulfonyle agissent sur des halogeno-benchrotrenes selon des substitutions nucleophiles aromatiques ipso, cine, tele-meta et tele-para. L'addition de l'anion secondaire sur les isomeres du fluoro- et chlorotoluenetricarbonylchrome est a la fois regio- et diastereoselective. La fluoration des chloro-benchrotrenes fournit les complexes resultant d'une coupure de la liaison carbone-chlore. Nous avons egalement mis au point l'additio
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SEMRA, ASSIA. "Substitutions nucleophiles en serie arenetricarbonylchrome." Paris 6, 1987. http://www.theses.fr/1987PA066622.

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Kennedy, R. J. "Copper-promoted nucleophilic aromatic substitution." Thesis, University of Kent, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355148.

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Shen, Bin. "Studies on the nucleophilic aromatic 18 F-Fluorination from model compounds to aromatic amino acids /." [S.l. : s.n.], 2008.

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Fraser, Georgina. "Ionic liquid effects on nucleophilic substitutions." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/17827.

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In this thesis we demonstrate a fundamental difference between nucleophilic substitution reaction mechanisms in ionic liquids versus conventional solvents. Reported herein are the effects of ionic liquid solvents on substitution reactions between a cationic electrophile and the chloride anion of various organic and inorganic salts. We have combined novel quantitative studies of the nucleophilic source [Cat]Cl with our studies of [C4C1im]Cl and compared their reactivities, k2. For the first time, Eyring activation parameters have been calculated for substitution reactions between charged specie
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CHAHMA, M'HAMED. "Substitution nucleophile radicalaire electroinduite avec des anions heterocycliques azotes." Paris 7, 1995. http://www.theses.fr/1995PA077108.

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Au cours de ce travail, nous avons montre que l'anion du pyrrole reagit dans les conditions des reactions electroinduites sur des chlorures d'aryles. Il reagit par les carbones en donnant des arylpyroles avec de bons rendements. L'arylation de l'anion du pyrrole a lieu principalement sur la position 2 qui est quatre fois plus reactive que la position 3. La reaction a ete generalisee a d'autres anions heterocycliques azotes tel les anions derives de l'indole et des imidazoles. Ces anions reagissent egalement par les carbones. Les rendements en aryl-(indoles et imidazoles) sont cependant moins b
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Curti, Christophe. "Recherche de nouveaux agents pharmacologiques par synthèse et réactivité Srn1[substitution radicalaire nucleophile unimoléculaire] d' alpha-halocétones et par réaction VNS [vicarious nucleophilic substitution of hydrogen] de 5-nitroimidazoles." Aix-Marseille 2, 2006. http://www.theses.fr/2006AIX22960.

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Ce travail est consacré à la recherche de nouveaux agents pharmacologiques par synthèse et réactivité SRN1 d’a-halocétones et par réaction VNS de 5-nitroimidazoles. La première partie décrit la réactivité SRN1 et ses différentes applications. La seconde partie met en évidence les intérêts de l’irradiation micro-ondes en synthèse organique. Nous abordons ensuite dans les troisième, quatrième et cinquième parties les études de synthèse et de réactivité d’a-halocétones en séries benzénique, thiophénique et pyrrolique. Chaque série a fait l’objet d’une étude mécanistique SRN1 avec l’anion du 2-nit
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Books on the topic "Nucleophile Substitutionen"

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Terrier, François. Modern Nucleophilic Aromatic Substitution. Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527656141.

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N, Charushin Valery, and Plas, H. C. van der., eds. Nucleophilic aromatic substitution of hydrogen. Academic Press, 1994.

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Liddle, J. Vicarious nucleophilic substitution of hydrogen. UMIST, 1996.

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Cheong, C. L. Substitution of polyhalogenaromatic compounds by sterically hindered nucleophiles. University of Salford, 1986.

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Nucleophilic aromatic displacement: The influence of the nitro group. VCH Publishers, 1991.

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Murray, Paul Edward. [ Beta]-nucleophilic substitution in indoles: The synthesis of Chartellamide A. University of Manchester, 1994.

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Mieczkowski, Józef Bogusław. Zastosowanie reakcji substytucji nukleofilowej do pełnych syntez wybranych alkaloidów i nowych układów heterocyklicznych. Wydawnictwa Uniwersytetu Warszawskiego, 1990.

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Burgers, Martijn Hendrik Willem. Zeolite-catalyzed nucleophilic aromatic substitution reactions =: Nucleofiele aromatische substitutie-reakties gekatalyseerd door metaalhoudende zeolieten. Delft University Press, 1995.

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Burgers, Martijn Hendrik Willem. Zeolite-catalyzed nucleophilic aromatic substitution reactions =: Nucleofiele aromatische substitutie-reakties gekatalyseerd door metaalhoudende zeolieten. Delft University Press, 1995.

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Terrier, Francois. Modern Nucleophilic Aromatic Substitution. Wiley & Sons, Incorporated, John, 2013.

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Book chapters on the topic "Nucleophile Substitutionen"

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Carey, Francis A., and Richard J. Sundberg. "Nucleophilic Substitution." In Advanced Organic Chemistry. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-9795-3_5.

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Went, Charles. "Nucleophilic Substitution." In Ionic Organic Mechanisms. Macmillan Education UK, 1986. http://dx.doi.org/10.1007/978-1-349-07964-3_5.

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Gondesen, Björn. "Halogenalkane, nucleophile Substitution, Eliminierung." In Chemie 8. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55098-4_6.

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Knipe, A. C. "Nucleophilic Aliphatic Substitution." In Organic Reaction Mechanisms · 2014. John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781118941829.ch7.

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Norman, Richard, and James M. Coxon. "Nucleophilic aromatic substitution." In Principles of Organic Synthesis. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2166-8_12.

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Crampton, M. R. "Nucleophilic Aromatic Substitution." In Organic Reaction Mechanisms · 2006. John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470669587.ch5.

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Westaway, K. C. "Nucleophilic Aliphatic Substitution." In Organic Reaction Mechanisms · 2006. John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470669587.ch8.

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Crampton, M. R. "Nucleophilic Aromatic Substitution." In Organic Reaction Mechanisms · 2008. John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9780470979525.ch5.

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Knipe, A. C. "Nucleophilic Aliphatic Substitution." In Organic Reaction Mechanisms · 2008. John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9780470979525.ch8.

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Crampton, M. R. "Nucleophilic Aromatic Substitution." In Organic Reaction Mechanisms Series. John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118560273.ch5.

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Conference papers on the topic "Nucleophile Substitutionen"

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Peixoto, Bárbara Pereira, José Walkimar de M. Carneiro, and Rodolfo Goetze Fiorot. "Substituição nucleofílica alifática: qual o mecanismo preferencial? Estudo computacional dos efeitos da estrutura do substrato e solvente." In VIII Simpósio de Estrutura Eletrônica e Dinâmica Molecular. Universidade de Brasília, 2020. http://dx.doi.org/10.21826/viiiseedmol2020122.

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Nucleophilic aliphatic substitution reactions constitute important steps in the synthesis of substances with biological activity and industrial appeal, beyond to participating in steps in biosynthetic routes of natural products. Unimolecular (SN1) and bimolecular (SN2) pathways can be understood as limiting cases of a mechanistic continuum. In between them, borderline mechanisms are proposed. The preference for one path over another depends on several factors, such as the structure of the substrate, the nucleophile and the solvent used. This plurality is still a topic of discussion and needs f
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Podraza, Renata, and Mieczyslaw Makosza. "Vicarious Nucleophilc Substitution of Hydrogen in Azulenes." In The 1st International Electronic Conference on Synthetic Organic Chemistry. MDPI, 1997. http://dx.doi.org/10.3390/ecsoc-1-02041.

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Bastrakov, Maxim, Alexey Starosotnikov, Alexey Fedorenko, and Vladislav Nikol’skyа. "REACTIONS OF NITROPYRIDINES WITH NUCLEOPHILES: SUBSTITUTION, ADDITION, CYCLOADDITION." In Chemistry of nitro compounds and related nitrogen-oxygen systems. LLC MAKS Press, 2019. http://dx.doi.org/10.29003/m744.aks-2019/168-170.

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Wang, Zibo. "The substitution and the nucleophilic substitution of ferrocene and derivative." In International Conference on Materials Engineering and Information Technology Applications (MEITA 2015). Atlantis Press, 2015. http://dx.doi.org/10.2991/meita-15.2015.176.

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Loos, M., J. L. Rivail, and I. G. Csizmadia. "Breaking and Making of S−S Linkages Via Nucleophilic Substitution." In Advances in biomolecular simulations. AIP, 1991. http://dx.doi.org/10.1063/1.41328.

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VO-THANH, Giang, and Alain PETIT. "Solvent-Free Microwaves Assisted Amination of Haloarenes by Aromatic Nucleophilic Substitution." In The 15th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2011. http://dx.doi.org/10.3390/ecsoc-15-00763.

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Voinkov, E. K., R. A. Drokin, D. V. Tufyakov, E. N. Ulomsky, and V. L. Rusinov. "Nucleophilic substitution of nitro group in dihydroazole[5,1-c][1,2,4]triazines." In PROCEEDINGS OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN MECHANICAL AND MATERIALS ENGINEERING: ICRTMME 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0018191.

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Tang, Y. C. Alicia, S. M. Zain, and N. Abdul Rahman. "Knowledge Representation and Simulation of Nucleophilic Substitution Reaction using Qualitative Reasoning Approach." In TENCON 2006 - 2006 IEEE Region 10 Conference. IEEE, 2006. http://dx.doi.org/10.1109/tencon.2006.343880.

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Budruev, Andrei, and Evgenja Schelokova. "Nucleophilic Substitution Reaction of the Acyl Azides with Secondary Amines Mediated by Copper(II) Salt." In The 16th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2012. http://dx.doi.org/10.3390/ecsoc-16-01047.

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Shutalev, Anatoly, Ludmila Trafimova, and Anastasia Fesenko. "Two Pathways for the Reaction of Ethyl 4-Chloromethyl-6-methyl- 2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate with Thiophenolates: Ring Expansion versus Nucleophilic Substitution." In The 14th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2010. http://dx.doi.org/10.3390/ecsoc-14-00456.

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