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Статті в журналах з теми "Enaminone synthesis"
Chattopadhyay, Amit Kumar, and Stephen Hanessian. "Cyclic enaminones. Part II: applications as versatile intermediates in alkaloid synthesis." Chemical Communications 51, no. 92 (2015): 16450–67. http://dx.doi.org/10.1039/c5cc05892a.
Повний текст джерелаŠtanfel, Urša, Dejan Slapšak, Uroš Grošelj, Franc Požgan, Bogdan Štefane, and Jurij Svete. "Synthesis of 6,7-Dihydro-1H,5H-pyrazolo[1,2-a]pyrazoles by Azomethine Imine-Alkyne Cycloadditions Using Immobilized Cu(II)-Catalysts." Molecules 26, no. 2 (January 13, 2021): 400. http://dx.doi.org/10.3390/molecules26020400.
Повний текст джерелаMasaret, Ghada S., and Thoraya A. Farghaly. "Synthesis of 8,10-disubstituted-triazoloperimidines from (E)-3-(dimethylamino)-1-(8- phenyl-8H-[1,2,4]triazolo[4,3-a]perimidin-10-yl)prop-2-en-1-one and Their Antimicrobial Activity." Current Organic Synthesis 15, no. 1 (March 20, 2018): 126–36. http://dx.doi.org/10.2174/1570179414666170601121137.
Повний текст джерелаCiber, Luka, Franc Požgan, Helena Brodnik, Bogdan Štefane, Jurij Svete, and Uroš Grošelj. "Synthesis and Catalytic Activity of Organocatalysts Based on Enaminone and Benzenediamine Hydrogen Bond Donors." Catalysts 12, no. 10 (September 28, 2022): 1132. http://dx.doi.org/10.3390/catal12101132.
Повний текст джерелаAgamy, Samia Michel, Mervat Mohammed Abdel-Khalik, Mona Hassan Mohamed, and Mohammed Hilmy Elnagdi. "Enaminones as Building Blocks In Heterocyclic Synthesis: A New One Pot Synthesis of Polyfunctional Substituted Pyridines." Zeitschrift für Naturforschung B 56, no. 10 (October 1, 2001): 1074–78. http://dx.doi.org/10.1515/znb-2001-1016.
Повний текст джерелаLiu, Weibing, Cui Chen та Qing Zhang. "FeCl3-PTSA Co-Catalysed Highly Regio- and Stereo-Selective Synthesis of β-Functionalised Enamine Derivatives". Journal of Chemical Research 36, № 3 (березень 2012): 175–77. http://dx.doi.org/10.3184/174751912x13306054094882.
Повний текст джерелаHassan, Mohamed M., and Mona H. Alhalafi. "Synthesis, Structural Determination, and Antioxidant Activities of Acyclic and Substituted Heterocyclic Phosphonates Linearly Linked 4-hydroxy-2(1H)-quinolinone." Molecules 27, no. 18 (September 13, 2022): 5960. http://dx.doi.org/10.3390/molecules27185960.
Повний текст джерелаSzafraniec, Anna, Marcin Grajda, Hanna Jędrzejewska, Agnieszka Szumna, and Waldemar Iwanek. "Enaminone Substituted Resorcin[4]arene—Sealing of an Upper-Rim with a Directional System of Hydrogen-Bonds." International Journal of Molecular Sciences 21, no. 20 (October 11, 2020): 7494. http://dx.doi.org/10.3390/ijms21207494.
Повний текст джерелаAl-Romaizan, Abeer N., Nesreen S. Ahmed, and Sherin M. Elfeky. "Design, Synthesis, and Biological Evaluation of Triazolyl- and Triazinyl-Quinazolinediones as Potential Antitumor Agents." Journal of Chemistry 2019 (February 3, 2019): 1–12. http://dx.doi.org/10.1155/2019/9104653.
Повний текст джерелаFilkale, Adelew Estifanos, та Chandni Pathak. "Dinuclear cobalt complexes supported by biphenol and binaphthol-derived bis(salicylaldimine) ligands: synthesis, characterization and catalytic application in β-enaminone synthesis from 1,3-dicarbonyl compounds and aliphatic amines". New Journal of Chemistry 44, № 35 (2020): 15109–21. http://dx.doi.org/10.1039/d0nj00052c.
Повний текст джерелаДисертації з теми "Enaminone synthesis"
Ostric, Adrian. "Hydroxyethylene isosters of Xaa-Pro dipeptides: synthetic approaches and new HIV-PR inhibitors." Doctoral thesis, Università degli studi di Trieste, 2011. http://hdl.handle.net/10077/4576.
Повний текст джерелаThe aspartic protease (HIV-Pr) of the human immunodeficiency virus, responsible agent for AIDS, is surely one of the most studied enzymes in terms of structure and activity. HIV-Pr is responsible for cleaving the viral polyprotein precursor into structural proteins and enzymes and plays an essential role in the viral replication and maturation. HIV-Pr has thus become the target of numerous efforts to design antiviral therapeutic agents suitable for the treatment of AIDS. In the field of organic chemistry, the search for effective HIV-Pr inhibitors has boosted the development of new methodologies for the stereoselective synthesis of compounds containing multiple chiral centers, on which reversible inhibitors are generally based. HIV-Pr shows peculiar characteristics as it is able, unlike any other eukaryotic aspartic protease, to hydrolyze amide bonds with proline as the N-terminal residue. Moreover, it is active in a dimeric form, possessing C2 symmetry, in which each monomer contributes a catalytic aspartate. The first part of the present doctoral work described in Chapter 2, has been dedicated to the synthesis of hydroxyethylene Phe-Pro isosters in which the pyrrolidine ring is expanded by a condensed aromatic ring in order to provide a better fit to the enzyme’s catalytic site. During the synthesis of the isoster a novel reaction was discovered in which enaminones are directly formed by treatment of α,β-unsaturated ketones with trimethylsilylazide and fluoride. Phe-Pro isosters based on the enaminone structure showed moderate activity as HIV-Pr inhibitors. The direct amination of α,β-unsaturated ketones is the subject of Chapter 3. This reaction is demonstrated to be general for enones containing a β-hydrogen. A mechanism based on azide activation via formation of a pentacoordinated silicon species followed by a 1,3-dipolar cycloaddition is proposed and supported by experimental results and calculations. In Chapter 4 is reported the synthesis of a library of triazole inhibitors by a combinatorial approach based on click chemistry. The library was screened for HIV-Pr inhibition and deconvoluted. A set of promising members from the library was synthesized as single, enantiomerically pure compounds that confirmed to be active HIV-Pr inhibitors. Finally, in Chapter 5 the development of an alternative approach to dipeptide isosters, based on the ring closing metathesis of aminoacid-derived allylamines, is described. Building of the four carbon atom backbone of the isosteres is obtained after mounting the olefins on designed linkers that allow selectivity in the cross metathesis, and easy final cleavage. Carbamate linkers will also allow also protection of the amino groups during the next steps of the synthesis leading to the desired di- and monohydroxyethylene isosters.
La proteasi aspartica (HIV-PR) del virus della immunodeficienza umana, l'agente responsabile dell'AIDS, è sicuramente uno degli enzimi più studiati in termini di struttura e di attività. HIV-Pr è responsabile della scissione della poliproteina virale in proteine strutturali ed enzimi e svolge un ruolo essenziale nella replicazione e maturazione del virus. HIV-Pr è così diventato il bersaglio di numerosi studi mirati alla progettazione di agenti terapeutici antivirali adatti per il trattamento dell'AIDS. Nel campo della chimica organica, la ricerca di efficaci inibitori dell'HIV-Pr ha stimolato lo sviluppo di nuove metodologie per la sintesi stereoselettiva di composti contenenti più centri chirali, che costituiscono la base strutturale della maggior parte degli inibitori reversibili. HIV-Pr presenta caratteristiche peculiari in quanto è in grado, unica tra le proteasi aspartiche da eucarioti, di idrolizzare legami ammidici con la prolina come residuo N-terminale. Inoltre, l’enzima è attivo in una forma dimerica, con simmetria C2, in cui ogni monomero contribuisce con un residuo catalitico di acido aspartico. La prima parte del presente lavoro di dottorato, descritta nel capitolo 2, è stata dedicata alla sintesi di isosteri idrossietilenici del dipeptide Phe-Pro, contenenti un anello pirrolidinico espanso al fine di migliorare le interazioni con il sito catalitico dell'enzima. Durante la sintesi dell’ isostere è stata scoperta una nuova reazione di formazione di enaminoni per trattamento di chetoni α,β-insaturi con trimethylsilylazide e fluoruro. Alcuni isosteri Phe-Pro basati sulla struttura enaminonica hanno mostrato una moderata attività come inibitori della HIV-PR. L'amminazione diretta di chetoni -insaturi è il soggetto del capitolo 3. Questa reazione si è dimostrata essere generale per enoni contenente un idrogeno in posizione β. Un meccanismo basato sulla attivazione della azide attraverso la formazione di una specie pentacoordinata di silicio seguita da una cicloaddizione 1,3-dipolare viene proposto sulla base dei risultati sperimentali e di calcoli teorici. Nel capitolo 4 è riportata la sintesi di una libreria di inibitori triazolici ottenuti con un approccio combinatoriale. La libreria è stato analizzata per l'inibizione di HIV-Pr e deconvoluta. Alcuni membri promettenti della biblioteca sono stati sintetizzati come composti singoli, in forma enantiomericamente pura, confermandosi attivi inibitori della HIV-PR. Infine, nel capitolo 5, é descritto lo sviluppo di un approccio alternativo a isosteri di dipeptidi, basato sulla “ring closing methatesis” di allilamine derivate da aminoacidi. La costruzione dello scheletro degli isosteres si ottiene dopo l’assemblaggio delle olefine su un nuovo linker che consente una cross-metatesi selettività nonché un facile distacco del prodotto. Il linker può anche essere utilizzato come gruppo proteggente nella successiva elaborazione sintetica dei prodotti.
XXIII Ciclo
1981
Sinibaldi, Marie-Eve. "Nouveaux intermediaires pour la synthese d'alcaloides pentacycliques : synthese totale de la desethyl-20 acetyl-20 aspidospermidine." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21144.
Повний текст джерелаPereira, Fernando Luiz Cardoso. "Aplicações sintéticas de β-enamino ésteres." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-19112015-162222/.
Повний текст джерелаA series of acyclic β-enamino esters was submitted to iodocyclization reactions or to iodine-mediated lactonization, leading to the corresponding cyclic iodo-β-enamino esters or β-enamino lactones. Dehydroiodination of the five-membered ring enamino esters furnished pyrrole, tetrahydroindole and hexahydroindole derivatives, under basic or neutral conditions. The six-membered ring enamino esters, when submitled to treatment with triethylamine, gave rise to trisubstituted cyclopentanes. This transformation occurred through an intramolecular nucleophilic substitution, instead of the expected dehydroiodination reaction. The effect of the N-substituent in these reactions was studied for a series for N-alkyl and N-aryl derivatives. The β-enamino lactones were obtained in poor yields, due to the poliiodination of the substrates, and showed to be resistent to reduction of the carbon-carbon double bond under several conditions. A study of conformational analysis of the bicyclic β-enamino esters was undertaken, using 1H-NMR and13C-NMR data, molecular mechanics and semi-empirical methods. From this study, it was observed that the bicyclic compounds adopt different conformations depending upon the N-substituent.
González, Soria María José. "Selective synthesis and reactivity of indolizines." Doctoral thesis, Universidad de Alicante, 2018. http://hdl.handle.net/10045/98672.
Повний текст джерелаThroup, Adam Eric. "Synthetic methodology and application of enamine [2+2] cyclisations for cyclobutane synthesis : development of integrin antagonists as anticancer therapeutics towards a total synthesis of providencin." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14411.
Повний текст джерелаThroup, Adam E. "Synthetic Methodology and Application of Enamine [2+2] Cyclisations for Cyclobutane Synthesis. Development of Integrin Antagonists as Anticancer Therapeutics Towards a Total Synthesis of Providencin." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14411.
Повний текст джерелаDELBECQ, PHILIPPE. "Nouvelles voies d'acces aux beta-enaminones cycliques. Application a la synthese de la six-methylpelletierine." Paris 6, 1990. http://www.theses.fr/1990PA066472.
Повний текст джерелаSevenich, Adrian Manuel [Verfasser]. "Entwicklung und Anwendung photochemischer Reaktionen zur Synthese und Modifikation von Heterocyclen : Synthese von (−)-Hexahydrofurofuranol; Synthese und Funktionalisierung von Enaminonen / Adrian Manuel Sevenich." Mainz : Universitätsbibliothek der Johannes Gutenberg-Universität Mainz, 2021. http://d-nb.info/122704853X/34.
Повний текст джерелаTaylor, Jane M. "The design and synthesis of acylated enamino esters as potential inhibitors of serine proteases." Thesis, University of Canterbury. Chemistry, 1993. http://hdl.handle.net/10092/8000.
Повний текст джерелаDeng, Yongming. "Asymmetric cyclization reactions through an enamine/acid cooperative approach. Synthesis of unsymmetrically functionalized benzoporphyrins." Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1406213121.
Повний текст джерелаЧастини книг з теми "Enaminone synthesis"
Waser, Mario. "Enamine Catalysis." In Asymmetric Organocatalysis in Natural Product Syntheses, 7–44. Vienna: Springer Vienna, 2012. http://dx.doi.org/10.1007/978-3-7091-1163-5_2.
Повний текст джерелаMurphy, John J., Mattia Silvi, and Paolo Melchiorre. "Enamine-Mediated Catalysis (n?→?π*)." In Lewis Base Catalysis in Organic Synthesis, 857–902. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527675142.ch17.
Повний текст джерелаWaser, Mario. "Combined Iminium-Enamine Catalyzed Approaches." In Asymmetric Organocatalysis in Natural Product Syntheses, 69–75. Vienna: Springer Vienna, 2012. http://dx.doi.org/10.1007/978-3-7091-1163-5_4.
Повний текст джерелаFustero, Santos, Juan F. Sanz-Cervera, Julio Piera, María Sánchez-Roselló, Diego Jiménez, and Gema Chiva. "Fluorinated β-Enamino Esters as Versatile Synthetic Intermediates: Synthesis of Fluorinated β-Amino Acids and Uracils." In ACS Symposium Series, 593–610. Washington, DC: American Chemical Society, 2005. http://dx.doi.org/10.1021/bk-2005-0911.ch034.
Повний текст джерелаDekeukeleire, S., M. D'hooghe, and N. De Kimpe. "Synthesis from Enaminones." In Heteroatom Analogues of Aldehydes and Ketones, 1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-127-00106.
Повний текст джерелаDeRosa, Thomas F. "Enaminones." In Advances in Synthetic Organic Chemistry and Methods Reported in US Patents, 261–64. Elsevier, 2006. http://dx.doi.org/10.1016/b978-008044474-1/50032-3.
Повний текст джерелаLue, Ping, and John V. Greenhill. "Enaminones in Heterocyclic Synthesis." In Advances in Heterocyclic Chemistry, 207–343. Elsevier, 1996. http://dx.doi.org/10.1016/s0065-2725(08)60072-0.
Повний текст джерелаKeller, P. A. "Resin-Supported Synthesis of Enaminones." In Six-Membered Hetarenes with One Nitrogen or Phosphorus Atom, 1. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-015-00553.
Повний текст джерелаWoyciechowska, M., O. El-Sepelgy, and J. Mlynarski. "Enamine-Based Direct Aldol Reactions." In Water in Organic Synthesis, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-206-00276.
Повний текст джерелаMuchalski, H., and J. N. Johnston. "Iminium–Enamine Catalysis." In Stereoselective Synthesis 1 Stereoselective Reactions of Carbon—Carbon Double Bonds, 1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-201-00082.
Повний текст джерелаТези доповідей конференцій з теми "Enaminone synthesis"
Cunha, Silvio, and Raimundo Francisco dos Santos Filho. "Microwave induced multicomponent synthesis of 2-pyrrolo-3’-yloxindoles through reaction of enaminone, isatin and phosphorus ylide." In 15th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013913142652.
Повний текст джерелаtalbi, soumaya, souad rabi, hafid Abderrafia, and mostafa khouili. "Efficient Synthesis of Pyrazolo-Enaminone Derivatives and Evaluation of Their Biological Activities." In 1st International Electronic Conference on Catalysis Sciences. Basel, Switzerland: MDPI, 2020. http://dx.doi.org/10.3390/eccs2020-07540.
Повний текст джерелаMarques, Monique Ferreira, and Silvio Cunha. "Synthesis of Cyclic Azo- and Hydrazo-Enaminones." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0305-1.
Повний текст джерелаMarques, Monique F., and Silvio Cunha. "Synthesis of polisubstituted 1,3-azadienes from enaminones." In 15th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013913141011.
Повний текст джерелаGomes, Amenson T., and Silvio Cunha. "Synthesis of Acyclic -Enaminones Through Reaction of Enones and Benzyl Azide." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0333-1.
Повний текст джерелаHortelan, Cristiane Regina Winck, Ingridhy Ostaciana Maia Freitas da Silveira, Silvia Mendes de Souza, Adilson Beatriz, Roberto da Silva Gomes та Nelson Luís de Campos Domingues. "Synthesis of β-enaminones catalyzed by nanoparticles of Fe2O3 in ultrasound and solvent-free approach." У 15th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013816163722.
Повний текст джерелаAndrighetto, Rosália, Helio G. Bonacorso, Jussara Navarini, Nícolas Krüger, Marcos A. P. Martins, and Nilo Zanatta. "Highly Efficient Synthesis of CF3-Containing 7-Aminoquinolines From Cyclocondensation Reaction of Trifluoroacetyl Enamine Precursors." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0008-1.
Повний текст джерелаSantos, Airam O., José Tiago Menezes Correia, and Silvio Cunha. "Synthesis of pyrrolizidines, indolizidines and pyrroloazepines through formal aza-[3+3] and aza-[3+2] cycloadditions of enaminones with maleic anhydride and maleimides." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0315-1.
Повний текст джерелаSantana, Lourenço Luis Botelho de, and Silvio Cunha. "Aza-bicycles Synthesis Through Formal Aza [3+3], [3+2+1] and [3+1+1+1] Cycloadditions Between Enaminones, Aldehydes and Meldrum’s Acid Derivatives." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0056-1.
Повний текст джерелаRezali, Nurul Syafiqah. "The Syntheses Of Fused Cyclic 5/6-Membered Ring Lactams Via Enamine Hydrogenation." In 8th International Conference on Multidisciplinary Research 2019. European Publisher, 2020. http://dx.doi.org/10.15405/epsbs.2020.03.03.87.
Повний текст джерела