Dissertations / Theses on the topic 'Carbazoli'
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Marrelli, Mariangela. "Progettazione, sintesi e valutazione dell'attivita biologica di nuovi carbazoli." Paris 5, 2011. http://www.theses.fr/2011PA05P605.
Full textThe present study was carried out at the Laboratory of Phytopharmacy, Department of Pharmaceutical Science (University of Calabria), and at the Laboratory of Pharmacognosy belonging to the University Paris Descartes of Paris. The research activity was focused on the synthesis of new carbazoles as analogues of the natural stilbene combretastatin A-4 (CA-4), and on the in vitro evaluation of the biological activity of obtained compounds. At the Laboratory of Pharmacognosy, were already synthesized heterocyclic derivatives of the CA-4, characterized by an high biological activity. The aim of the present study was to synthesize analogues of the previously obtained compounds and to modify the molecules structure in order to improve the biological properties with the goal to complete the study on the structure-activity relationships of this series of molecules. During the previous works were synthesized new 3-aroylindoles, formulated as heterocyclic analogues of CA-4. Successively was synthesized a series of 5-(3’,4’,5’-trimethoxyphenyl)pyrrole[3,4-a]carbazole-1,3(2H,10H)-diones formulated as cis-blocked analogues of 3-aroylindoles and arylthioindoles previously obtained. Some of these molecules were characterized by an high biological activity. The goal of the present study was to synthesize new carbazoles, ring-open analogues of the previous series, in order to reduce the steric crowd on the benzenic ring (characterizing the carbazoles and tetrahydrocarbazoles previously synthesized) with the aim to obtain molecules characterized by an higher biological activity. The research project was subdivided in different steps. During the first step, was synthesized a series of molecules starting from indole. To synthesize these molecules was employed an opportunely modified procedure described by Noland et al. In the 1996. The realization of this first series of molecules was pivotal because it permitted to plan appropriate synthesis for the realization of more complex molecules. During the second step, on the basis of known structure-activity relationships, a new series of molecules was synthesized starting from the 6-methoxyindole in order to obtain molecules characterized by an higher biological activity then the one showed from the first not substituted series of molecules. So, during the thesis work were synthesized new trimethoxyphenyl-pyrroloindolecarbazoles starting from indole and a second series of molecules starting from 6-methoxyindole. Many attempts were carried out in order to obtain molecules with a not benziliated maleimide ring and with a lower steric crowd, without reaching the purpose. The goal was reached realizing the same synthesis procedures starting from 6-bromoindole. So, was possible to synthesize new compounds starting from the maleimide instead of the N-benzyl maleimide. To evaluate the potential anticancer activity due to antivascular properties of synthesized compounds, the cytotoxic activity of molecules and the inhibition of tubulin polymerization were assessed in vitro. In a first screening, the antiproliferative activity of synthesized molecules was assayed, using the in vitro bioassay MTT, on B16 cancer cell line (murine melanome). The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) test is a colorimetric assay largely used to estimate cell proliferation and vitality through the evaluation of mitochondrial efficiency. The capacity to inhibit the tubulin polymerization was estimated using the fluorescent dye DAPI (4’,6-diamidino-2-phenylindole), using the Barron (2003) and Bane (2007) procedures opportunely modified. In order to complete the evaluation of biological activity of compounds, the effects on the morphology of endothelial cells Ea. Hy 926 were also evaluated. Obtained results permitted to plan the synthesis and to underline the structure-activity relationships for the realized molecules. The analysis of biological activity of substituted molecules (R=OCH3) showed good preliminary results. These molecules seems promising on both effects on morphology of endothelial cells and inhibition of tubulin polymerization. Good results, concerning the antiproliferative effects and the influence on morphology on endothelial cells (Ea. Hy 926), were also observed for bromo-analogues. During the last step of experimental work, the research activity was focused on the synthesis of new bisindolylmethanes. These molecules and their derivatives are known as an important class of heterocyclic compounds in pharmaceutical industry. Bisindolylmethanes are found in cruciferous plants and are known to promote beneficial estrogen metabolism and to induce apoptosis in human cancer cells. In order to synthesize new new carbazoles characterized by a low steric crowd, the general procedure previously utilized was applied employing different reagents. These reactions did not lead to the synthesis of new carbazoles, but it was possible to observe the formation of a new bisindolylmethane. Successively, the goal of this thesis was to improve the synthesis strategy to increase the yield of the reaction and to evaluate if the procedure could be applied for the synthesis of substituted bisindolylmethanes. The antiproliferative activity of molecules was assayed on different human cancer cells line through the MTT in vitro assay. Particularly, were employed two breast cancer cell lines (MCF-7 and SKBR3), and one prostate cancer cell line (LNCaP). Moreover, the evaluation of apoptosis was carried out
Marrelli, Mariangela. "Progettazione, sintesi e valutazione dell'attività biologica di nuovi carbazoli." Doctoral thesis, Universita degli studi di Salerno, 2011. http://hdl.handle.net/10556/243.
Full textIl presente lavoro di tesi è stato svolto presso il laboratorio di Fitofarmacia del Dipartimento di Scienze Farmaceutiche dell’Università della Calabria e presso il Laboratorio di Farmacognosia dell’Università Paris Descartes di Parigi. L’attività di ricerca è stata dedicata alla sintesi di nuovi carbazoli concepiti come analoghi dello stilbene naturale combretastatina A-4 (CA-4) ed alla successiva valutazione dell’attività biologica in vitro dei composti ottenuti. Presso il Laboratorio di Farmacognosia dell’Università Paris Descartes erano stati già sintetizzati degli analoghi eterociclici della combretastatina A-4, dotati di buona attività biologica. Obiettivo del presente lavoro di tesi è stato quello di sintetizzare analoghi dei composti precedentemente ottenuti, apportando ulteriori modifiche strutturali atte a migliorarne le proprietà biologiche, al fine di completare lo studio delle relazioni struttura-attività di questa serie di molecole. Nel corso dei precedenti lavori erano stati sintetizzati dei nuovi 3-aroilindoli, concepiti quali analoghi eterociclici della CA-4 e, successivamente, una serie di 5-(3’,4’,5’-trimetossifenil)pirrolo[3,4-a]carbazoli-1,3(2H,10H)-dioni, concepiti come analoghi cis-blocked dei 3-aroilindoli ed ariltioindoli ottenuti. Alcune di queste molecole avevano mostrato in vitro una buona attività biologica. Obiettivo del presente lavoro di tesi è stato quello di sintetizzare nuovi carbazoli, analoghi « aperti » della precedente serie, in modo da ridurre l’ingombro sterico a livello dell’anello benzenico che caratterizzava i carbazoli ed i tetraidrocarbazoli già realizzati, al fine di ottenere dei composti che esplicassero una migliore attività biologica. Il progetto di ricerca ha previsto inizialmente la sintesi di una prima serie di molecole realizzata a partire dall’indolo non sostituito, concepita come modello sperimentale. Per la sintesi delle molecole è stata impiegata una procedura descritta da Noland e collaboratori nel 1996, con qualche opportuna modifica. La realizzazione di questa prima serie di molecole è stata fondamentale, poiché ha consentito di mettere a punto percorsi di sintesi adeguati alla realizzazione di molecole più complesse. Una seconda serie di molecole è stata infatti realizzata, successivamente, a partire dal 6-metossindolo, al fine di ottenere, sulla base di relazioni struttura-attività note, molecole dotate di attività biologica superiore a quella mostrata dalle molecole della prima serie non sostituite. Nel corso del lavoro di tesi sono stati dunque sintetizzati nuovi trimetossifenil-pirroloindolocarbazoli a partire dall’indolo semplice e, in seguito, una seconda serie di molecole a partire dal 6-metossindolo. Molti tentativi sono stati compiuti al fine di ottenere molecole non benzilate sull’anello della maleimide, che fossero caratterizzate da un minor ingombro sterico, ma gli esperimenti non hanno condotto ai risultati attesi. Tale obiettivo è stato raggiunto, infine, realizzando le medesime procedure di sintesi a partire dal 6-bromoindolo: è stato possibile così sintetizzare nuovi composti a partire direttamente dalla maleimide anziché dalla N-benzilmaleimide, e che presentano pertanto un anello aromatico in meno rispetto ai precedenti analoghi. Al fine di valutare la potenziale attività antitumorale legata a proprietà antivascolari delle molecole sintetizzate, si è provveduto alla determinazione della citotossicità in vitro ed alla valutazione degli effetti inibitori sulla polimerizzazione della tubulina. In uno screening iniziale, l’attività antiproliferativa delle molecole sintetizzate è stata testata sulla linea cellulare tumorale B16 (cellule di melanoma murino), mediante il saggio in vitro MTT. Il saggio del bromuro di 3-(4,5-dimetiltiazol-2-il)-2,5-difeniltetrazolio (MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) è un saggio colorimetrico ampiamente utilizzato, che permette di misurare la proliferazione e la vitalità cellulare attraverso la valutazione dell'efficienza mitocondriale. La capacità delle molecole di inibire la polimerizzazione della tubulina è stata valutata, invece, utilizzando il colorante fluorescente DAPI (4’,6-diamidino-2-phenylindole), impiegando con qualche opportuna modifica la procedura descritta da Barron et al. nel 2003 e da Bane e collaboratori nel 2007. Il colorante degli acidi nucleici DAPI subisce delle modificazioni in termini di fluorescenza in seguito al legame con la tubulina e all’assemblaggio dei monomeri, e le variazioni nell’intensità dell’emissione possono essere impiegati per monitorare la polimerizzazione della proteina. Per completare la valutazione dell’attività biologica dei composti ottenuti sono stati valutati, inoltre, gli effetti sulla morfologia delle cellule endoteliali Ea.hy 926, test considerato predittivo di una potenziale attività antivascolare in vivo. I risultati ottenuti hanno consentito di orientare il lavoro di sintesi e di evidenziare le relazioni struttura-attività per le serie di molecole realizzate. L’analisi dell’attività biologica delle molecole sostituite (serie R=OCH3) ha evidenziato ottimi risultati preliminari, coerentemente a quanto da noi ipotizzato sulla base delle relazioni struttura-attività note. Queste molecole sembrerebbero promettenti, infatti, sia per quanto concerne gli effetti sulla morfologia delle cellule endoteliali, sia per quanto riguarda l’attività inibitoria sulla polimerizzazione della tubulina. Ottimi risultati sono stati osservati per gli analoghi appartenenti alla serie R=Br, sia per quanto concerne gli effetti antiproliferativi, sia per quanto riguarda gli effetti sulla morfologia delle cellule endoteliali Ea.hy 926. Durante l’ultima parte del lavoro sperimentale, l’attività di ricerca è stata dedicata alla sintesi di nuovi diindolilmetani. I diindolilmetani ed i loro derivati costituiscono un’importante classe di composti eterociclici impiegati dall’industria farmaceutica. Queste molecole sono presenti nelle piante appartenenti alla famiglia delle Cruciferae, e sono note per la loro capacità di promuovere il metabolismo degli estrogeni e di indurre apoptosi in cellule tumorali umane. Allo scopo di sintetizzare nuovi carbazoli che fossero caratterizzati da un minor ingombro sterico, la procedura generale impiegata per la sintesi dei tetraidrocarbazoli è stata applicata utilizzando diversi prodotti di partenza. Queste reazioni non hanno condotto alla sintesi di nuovi carbazoli, ma è stato possibile, tuttavia, osservare la formazione di un nuovo diindolilmetano. Obiettivo seguente è stato dunque quello di migliorare la strategia di sintesi utilizzando una procedura più opportuna, in modo da aumentare le rese di reazione. Nelle fasi successive si è inteso appurare se la stessa procedura potesse essere applicata anche alla sintesi di diindolilmetani sostituiti. L’attività antiproliferativa delle molecole è stata testata su diverse linee cellulari tumorali umane mediante il saggio in vitro MTT. Sono state impiegate, in particolare, due linee cellulari di tumore mammario, MCF-7 (human breast cancer, ormono-dipendente) ed SKBR3 (human breast cancer, ormono-indipendente), ed una linea di tumore prostatico, LNCaP (human prostatic adenocarcinoma). In una seconda fase della valutazione dell’attività biologica si è inteso verificare se l’attività antiproliferativa fosse correlata ad induzione di apoptosi. [a cura dell'Autore]
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Knott, Kerstin. "Iron-mediated Synthesis of the Antiostatins." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1237582907592-42405.
Full textKnott, Kerstin. "Iron-mediated Synthesis of the Antiostatins." Doctoral thesis, Technische Universität Dresden, 2008. https://tud.qucosa.de/id/qucosa%3A24053.
Full textOttone, Chiara. "Nouveaux copolymères donneur-accepteur : préparation, caractérisation physico-chimique et application des cellules photovoltaïques organiques." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00864002.
Full textDufour, Fabien. "Synthèse en série carbazolique, analogues d'ellipticine, et dihydrocarbazolocarbazoles." Thesis, Metz, 2007. http://www.theses.fr/2007METZ031S/document.
Full textEllipticine, a tetracyclic natural alkaloid with the 6H-pyrido[4,3-b]carbazole skeleton and some of its derivatives display antitumoral properties. The aim of this work was firstly to find a general method to synthesize two types of intermediates not described in the literature to our knowledge (carbazole and pyridine derivatives), and then to synthesize some ellipticine analogs, which contain an additional saturated cycle, these structural modifications could be interesting regarding to biological activity. The synthesis was initially thought starting from furan derivatives, and opening of the ring under acidic conditions. 10-Methyl-1,10-dihydrocyclopenta[a]carbazol-3(2H)-one, 1,2,3,11-tetrahydro-4H-benzo[a]carbazol-4-one, 2,3,4,11-tetrahydro-1H-benzo[a]carbazol-1-one, and 11-methyl-1,2,3,11-tetrahydro-4H-benzo[a]carbazol-4-one were eventually obtained by Fischer indole synthesis, followed by Friedel-Crafts reaction for the first product and dissolved metal reduction, DDQ oxidation for the three other molecules. Second hoped intermediates, for instance 5,6,7,8-tetrahydroisoquinoline derivative 3-chloro-7,8-dihydro-6H-isoquinolin-5-one, were not obtained. One of the carbazolic derivatives afforded by the Eloy and Deryckere method ellipticine analogs containing an additional 6-member saturated ring, molecule having a 1,2,3,12-tetrahydroisoquino[5,4-ab]carbazole scaffold. Final product of this synthesis has a polyaminated chain, needed to find a biological activity. Other heterocyclic systems were synthesized from the carbazolic intermediates, like some new dihydrocarbazolocarbazoles
Leontyev, Alexey E. "Carbazole-Fluorenone Dyes." Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1245273099.
Full textKirst, Juliane. "Synthese halogenierter Carbazole und Totalsynthese der Amaryllisalkaloide Pratosin und Hippadin." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-21142.
Full textThis thesis is about my research study of the synthesis of polyhalogenated carbazoles. The skeletal structure of the carbazoles are easily assembled by palladium(0)-catalyzed Buchwald-Hartwig coupling and palladium(II)-mediated oxidative cyclisation. Through cooperation with Prof. Gutzeit many different halogenated carbazole derivatives could be analyzed concerning the activity of the inhibition of myosin ATPase. The tribrominated 1-Hydroxycarbazole was identified as sn effective inhibitor. The second part of my thesis includes the total synthesis of amaryllidaceae alkaloids pratosine, oxoassoanine, assoanine, hippadine, anhydrolycorinone and anhydrolycorine. The synthesis was accomplished by two different pathways which include the Iron-mediated C-C and C-N bond formation and intramolecular palladium-catalysed biaryl coupling reaction as the key steps
Krahl, Micha P. "Regioselektive Synthese oxygenierter Carbazole." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1168004377329-87485.
Full textKrahl, Micha P. "Regioselektive Synthese oxygenierter Carbazole." Doctoral thesis, Technische Universität Dresden, 2006. https://tud.qucosa.de/id/qucosa%3A24953.
Full textFoschi, Simone. "Synthesis, Characterization and Conformational Studies of Modified Carbazole-bis-aryl-boranes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20686/.
Full textGehring, André Philipe. "Biologisch aktive Carbazol-Derivate." Diss., lmu, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-155544.
Full textFlambeau, Jean-Pierre. "Essai de biotransformation du carbazole." Metz, 1990. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1990/Flambeau.Jean_Pierre_1.SMZ9016.pdf.
Full textFLAMBEAU, JEAN-PIERRE BLOCK J. C. "ESSAIS DE BIOTRANSFORMATION DU CARBAZOLE /." [S.l.] : [s.n.], 1990. ftp://ftp.scd.univ-metz.fr/pub/Theses/1990/Flambeau.Jean_Pierre_1.SMZ9016.pdf.
Full textKutz, Sebastian K. "Regioselektive Synthese substituierter Carbazol-1,4-chinone." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200963.
Full textScott, Tricia L. "Palladium-catalyzed synthesis of carbazole derivatives and formal total syntheses of several naturally occurring carbazole alkaloids." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2075.
Full textTitle from document title page. Document formatted into pages; contains x, 83 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 75-78).
Lav, Thanh-Xuan Chevrot Claude. "Réseaux et réseaux interpénétrés carbazole / pérylène à hétérojonctions volumiques." [S.l.] : [s.n.], 2009. http://biblioweb.u-cergy.fr/theses/08CERG0370.pdf.
Full textDegbia, Wangata Saint-Martial. "Semi-conducteurs organiques [pi]-conjugués pour l'élaboration de dispositifs photovoltaïques hybrides solides à colorant." Thesis, Tours, 2014. http://www.theses.fr/2014TOUR4044/document.
Full textThe aim ot this work has been to prepare new hole transporting molecular glasses based on carbazole moieties as an alternative to spiro-OMeTAD (standard material) in solid state dye sentitized solar cells (ssDSSC). We have synthesized several 3, 6, 9 substituted carbazole derivatives and have established their physical and chemical properties prior using them in photovoltaic devices. We have demonstrated the interest of grafting functional groups as bis(4-methoxyphenyl)amines on 3, 6 positions and aryl substitutes on the 9 position of carbazole to obtain efficient materials. Finally, this latter chemical structure has been used as a building block to develop an innovative concept of synthesis of carbazole based materials, smoothing the way to easy synthesis of a wide family of efficient molecular glasses for ssDSSC. Our best materials exhibit similar power conversion efficiency compare to the standard spiro-OMeTAD. According to these preliminary results, we expect reaching power conversion efficiencies over 15% with our carbazole based hole transporting materials associated with peroskite sensitizer
Boudreault, Pierre-Luc. "SYNTHÈSE ET CARACTÉRISATION DE NOUVEAUX SEMI-CONDUCTEURS ORGANIQUES À BASE DE CARBAZOLE ET D’INDOLO[3,2-b]CARBAZOLE." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27896/27896.pdf.
Full textBoudreault, Pierre-Luc. "Synthèse et caractérisation de nouveaux semi-conducteurs organiques à base de carbazole et d'indolo[3,2-b]carbazole." Doctoral thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/22285.
Full textHesse, Ronny, Anne Jäger, Arndt W. Schmidt, and Hans-Joachim Knölker. "Palladium(II)-catalysed total synthesis of naturally occurring pyrano[3,2-a]carbazole and pyrano[2,3-b]carbazole alkaloids." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-149135.
Full textChapman, Madelaine A. "The electropolymerisation of indolo{3,2,1-jk}carbazole and pyrrolo{3,2,1-jk}carbazole : an electrochemical computational and spectroscopic study." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/13360.
Full textSonntag, Martin. "New carbazole based materials for optoelectronic applications." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=982072864.
Full textSimmance, Timothy Graham. "New Carbazole-Based Materials for LED Applications." Thesis, University of Sheffield, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489740.
Full textBlair, Emily. "Characterisation of poly (2,7-carbazole) photovoltaic cells." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28384/28384.pdf.
Full textBarcelos-Drzewinski, Isabel de. "Nouveaux polyesters à groupe carbazolique dans la chaîne, relations synthèse-structure-propriétés." Paris 13, 1995. http://www.theses.fr/1995PA132015.
Full textGehring, André Philipe [Verfasser]. "Biologisch aktive Carbazol-Derivate / André Philipe Gehring." München : Verlag Dr. Hut, 2013. http://d-nb.info/1033041726/34.
Full textClavijo, Allancán Graciela Andrea. "Síntesis de carbazol-tio- y aminoquinonas antitumorales." Tesis, Universidad de Chile, 2013. http://repositorio.uchile.cl/handle/2250/138265.
Full textLos derivados quinónicos poseen interesantes aplicaciones en áreas de la química de materiales y medicinal. Estos compuestos pueden ser encontrados tanto en la naturaleza como obtenerse sintéticamente, su síntesis ha despertado interés, debido a la posibilidad de funcionalizarlas, con el objetivo de mejorar sus propiedades, y también obtener nuevas estructuras. En este trabajo se informa la síntesis y caracterización de una serie de amino-, tio- y carbazolquinonas estructuralmente relacionadas con calotrixinas. Para la síntesis de amino y tioquinonas se utilizó un protocolo de química verde, utilizando agua como solvente. En una segunda etapa, se realizó la ciclación de quinonas que presentan sustituyentes dadores o aceptores en posiciones no impedidas, mediante el uso de acetato de paladio (II)1. Estos compuestos fueron caracterizados espectroscópicamente mediante resonancia magnética nuclear (1H, 13C y experimentos bidimensionales), sus actividades biológicas preliminares fueron estudiadas en líneas celulares de carcinoma mamario de ratón TA3.
Quinone derivatives have shown interesting applications in diverse chemical areas such as materials and medicinal chemistry. These compounds can be found in nature or being synthesized, and their synthesis has awakened some interest because they can be functionalized, and new structures can be obtained. In this work the synthesis and characterization of a series of amino-, tio- and carbazolquinones structurally related to Calothrixins are reported. For amino and tioquinone-derivative synthesis, a green chemistry protocol has been followed, using water as solvent. In a second stage, quinones containing donor or acceptor moieties not sterically hindered, were cyclized using Palladium (II) acetate 1. The quinone derivatives were characterized utilizing nuclear magnetic resonance techniques (1H, 13C and bidimensional), and their preliminary biological activities were studied using TA3 mammary carcinoma cells from mice
Fondecyt
Harismah, Kun. "Development of New Carbazole Polymers for LED Applications." Thesis, University of Sheffield, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500291.
Full textNolan, William Peter. "Synthesis of indolo[2,3-A]carbazole natural products." Thesis, University of Cambridge, 1990. https://www.repository.cam.ac.uk/handle/1810/272982.
Full textAsche, Christian. "Strukturoptimierung von Benzo(b)carbazol-Derivaten als Zytostatika." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966453743.
Full textTiano, Martin. "Synthèse d’hétérocycles polycycliques par réaction d’aminobenzannélation." Lyon 1, 2008. http://n2t.net/ark:/47881/m6qz282v.
Full textWe have developped an aminobenzannulation reaction, which consists in a simultaneous formation of a benzenic ring and an amine bond. In smooth conditions and without any catalysts, this reaction allowed the synthesis of original and diversely substituted aminoquinolines, aminocarbazoles, and aminodibenzofurans. This aminobenzannulation reaction was applied to the formation of acridines, and allowed the synthesis in seven steps of a new ligand for the formation of antitumoral organometallic complexes related to the cis-platin family. This ligand could allow an efficient vectorization to a cellular target and improve the selectivity of the desired complex towards cancer cells. Finally, thanks to the same aminobenzannulation reaction now catalysed by a Brönsted acid, or thanks to an organometallic pathway, we were able to synthetize in two or three steps tetracyclic compounds of the pyrido[2,3,4-kl]acridine family, which contains more than eighty natural cytotoxic compounds
Henri, Thierry. "Synthèse et propriétés électrochimiques de polymères conjugués solvatants et de verres moléculaires dérivés du carbazole." Cergy-Pontoise, 2005. http://biblioweb.u-cergy.fr/theses/05CERG0233.pdf.
Full textWe describe the synthesis and the characterization of polymers and molecular glasses to basis of carbazole for the realization of electrooptic devices. We have synthesized polycarbazoles, associating the ionic conductivity of chains hanging oxyethylene and electrochromic properties of carbazoles by chemical and electrochemical polymerization. Then, we elaborated a network drifted of the oligo[N(2,3-epoxy-propyl)carbazole] to rich hanging branches in oxyethylene units. For applications in electroluminescence, we have synthesized the poly(3,4 ethylenedioxythiophene-co-3,3'-bis(N-(3,6,9-trioxadecyl)carbazole)) by coupling of Stille, then studied the electrochemical and optic properties of this alternate copolymer. Finally, we have synthesized and studied the organic molecules possessing properties of molecular glass usable as coins injection layer of holes. The electropolymerisation of some of these molecular glasses has also been done to consolidate the glass
Joseph, Delphine. "Synthèse de tétrahydrocarbazolones et application à la préparation d'analogues hétérocycliques des pyrido-carbazoles." Metz, 1995. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1995/Joseph.Delphine.SMZ9533.pdf.
Full textMany studies toward the synthesis of pyridocarbazoles alkaloïds like ellipticine and olivacine have been made in recent years. However, few examples of the replacement of the pyridine ring in the natural structure by other heteroaromatic systems have been described. Using the reactivity of the ketone moiety in the tetrahydrocarbazolones, we have built up several heterocycles condensed to the carbazole moiety. In the first part, we describe the preparation of the tetrahydrocarbazolones by Fischer indole synthesis, starting from cyclohexanediones or méthyl-cyclihexanediones. Studies of the indolisation conditions allowed improvement in the results of the Fischer cyclisation and also access to the methyl- and dimethyl-tetrahydrocarbazolones. In the second part, we develop the preparation of the pyridocarbazoles analogues. Thus, the synthesis of furo-, thieno-, seleno-, pyrazolo- and selenadiazolo- annelated carbazoles ares presented
Chen, Chen. "Therapeutic effect of cyanines in a alzheimer's disease model in virto and in vivo." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/787.
Full textChen, Chen. "Therapeutic effect of cyanines in an alzheimer's disease model in vitro and in vivo." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/844.
Full textOlivero, Charles. "Micro-cavité polymère à chromophores carbazoliques : vers des lasers plastiques bleus." Paris 13, 2001. http://www.theses.fr/2001PA132020.
Full textHenri, Thierry Chevrot Claude. "Synthèse et propriétés électrochimiques de polymères conjugués solvatants et de verres moléculaires dérivés du carbazole." [s.l.] : [s.n.], 2008. http://biblioweb.u-cergy.fr/theses/05CERG0233.pdf.
Full textBlouin, Nicolas. "Conception, synthèse et caractérisation de poly(2,7-carbazole)s et poly(indolo[3,2-B]carbazole)s pour des applications en électronique organique." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25870/25870.pdf.
Full textInscrit au Tableau d'honneur de la Faculté des études supérieures
Wahlström, Niklas. "Synthesis of indoles, bisindoles and indolocarbazoles : high affinity aryl hydrocarbon receptor ligands /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7140-016-8/.
Full textCARNEIRO, LEONARDO SIMÕES DE ABREU. "CARBAZOLE-BASED COVALENT ORGANIC FRAMEWORKS: CONCEPTION, SYNTHESIS AND CHARACTERIZATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=28356@1.
Full textCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
Materiais bidimensionais apresentam possibilidades de funcionalização que os tornam versáteis para diversas aplicações, tais como em dispositivos eletrônicos. A presença de poros nesses materiais pode trazer novas funções, como adsorção de gases, liberação controlada de fármacos e catálise. Os covalent organic frameworks (COFs) são uma nova classe de materiais orgânicos porosos cristalinos que têm recebido destaque em química reticular. O objetivo dessa dissertação é apresentar a síntese e caracterização de quatro novos COFs baseados em carbazóis, que constitui uma classe de compostos utilizada na obtenção de polímeros condutores. O bloco de montagem principal utilizado foi o 3,6-diamino-9H-carbazol e as fontes de aldeído foram triformilfloroglucinol, triformilfenol, 1,3,5-tri(4-formilfenil)benzeno e triformilbenzeno para a síntese do RIO2, RIO3, RIO5 e RIO6, respectivamente. RIO2 e RIO3 apresentaram-se sob a forma ceto enamina e imina, respectivamente, além de pouca cristalinidade e baixa área específica. Através de cálculos baseados na Teoria do Funcional da Densidade (DFT), foi verificado que esses COFs apresentam suas folhas deslocadas e rotacionadas devido às interações eletrostáticas e para minimizar os momentos de dipolo das ligações N-H dos carbazóis. RIO5 e RIO6 também se apresentaram pouco cristalinos e com áreas específicas baixas. Apesar desses resultados, esses materiais ainda podem ser aplicados em eletrônica orgânica por apresentarem estrutura química compatível com tal aplicação.
Two-dimensional materials have functionalization possibilities that make them versatile for various applications such as in electronic devices. The presence of pores in these materials can give new features to them, such as gas adsorption, drug delivery and catalysis. The covalent organic frameworks (COFs) are a new class of crystalline porous organic materials that have been prominent in reticular chemistry. The purpose of this work is to present the synthesis and characterization of four new COFs based on carbazoles, which are a class of compounds used to obtain conductive polymers. The main building block used was 3,6-diamine-9H-carbazole with the aldehyde sources were triformylphloroglucinol, triformylphenol, 1,3,5-tri(4 formylphenyl)benzene and triformylbenzene to obtain RIO2, RIO3, RIO5 and RIO6, respectively. RIO2 and RIO3 are in keto-enamine and imine form, respectively, as well as have low crystallinity and low specific area. Calculus based on Density Functional Theory (DFT) found that these COFs present their sheets displaced and rotated due to electrostatic interactions and to minimize the dipole moments of the N-H bonds of carbazoles. In an attempt to avoid the absence of pores, RIO5 and RIO6 materials were synthesized, however these COFs also performed poorly crystalline and with low specific areas. Despite these results, these materials can also be applied in organic electronics by presenting chemical structure compatible with such application.
Lav, Thanh-Xuan. "Réseaux et réseaux interpénétrés carbazole / pérylène à hétérojonctions volumiques." Cergy-Pontoise, 2008. http://biblioweb.u-cergy.fr/theses/08CERG0370.pdf.
Full textThe purpose of this work was to develop new materials that would promote the generation of free charge carriers. Indeed the use of organic compounds to elaborate photovoltaic devices requires the simultaneous presence of positively and negatively dopable materials with adequate energy levels to produce dissociated electrons and holes. First synthesis and physico-chemical characterizations of carbazole and pérylène derivatives have been discussed. Then, the involvement of these two molecule families in the elaboration of (semi)-interpenetrating polymers by photochemical and electrochemical ways have been studied. The interest of this process in photovoltaic devices could be to encourage a better contact between electrons donor and acceptor while reducing phase separation
Strödke, Benjamin. "Carbazol- und ß-Carbolin-Derivate als neuartige Kinase-Inhibitoren." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-86055.
Full textStrödke, Benjamin. "Carbazol- und b-Carbolin-Derivate als neuartige Kinase-Inhibitoren." München Verl. Dr. Hut, 2008. http://d-nb.info/989216705/04.
Full textJacquemard, Ulrich. "Synthèse de nouveaux composés indoliques, carbazoliques, pyridiniques et pyraziniques, à visée antitumorale." Orléans, 2005. http://www.theses.fr/2005ORLE2002.
Full textShi, Chongsheng. "Synthesis of benzocarbazoles, indoloquinolines and indolonaphthridines from thermolysis of benzoenynyl ketenimines and carbodiimides." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2119.
Full textTitle from document title page. Document formatted into pages; contains ix, 82 p. : ill. Includes abstract. Includes bibliographical references (p. 70-80).
Fumagalli, Fernando. "Química de alcaloides carbazólicos: síntese de Claurailas e de biblioteca de análogos estruturais." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/60/60138/tde-01072015-095954/.
Full textHeterocyclic molecules are very important class of compounds in biological processes and drugs designing. Among all of them, carbazoles show great applicability for treatment of several diseases, especially against cancer. Many carbazoles are natural products, and one of our interests is Clauraila A. This work is based on the Clauraila A structure to development of a library of carbazoles for biological applications. The optimal conditions of the Åkermark-Knölker cyclodehydrogenation of diarylamine was studied to obtaind the carbazole core. The diarylamines were obtained by the optimized Buchwald-Hartwig amination reaction. This synthetic strategy was used to obtain the range of carbazoles, with different substituents in good and moderate yields, including natural products 6-methoxymurrayanine and Clausenal. The overall yield obtained in the synthesis of the natural products were similar to those previously described in the literature, however, unlike the literature our synthesis involved a reduced number of steps to obtain the desired product. In the optimization step of Åkermark-Knölker reaction, we first applied palladium (II) acetylacetonate instead of palladium (II) acetate. Moreover, with the achieved results the possible mechanism of this reaction was proposed. Additionally, after several attempts, dimethylchromenos were obtained from aminophenols using prenal and phenylboronic acid, which will be useful in the synthesis of other carbazoles, such as Clauraila B.
Bartlett, I. D. "Characterisation and optimisation of carbazole modified polysiloxanes for electrochromic applications." Thesis, Swansea University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636047.
Full textTremmel, Tim [Verfasser]. "Entwicklung biologisch aktiver Canthine und Benzo[a]carbazole / Tim Tremmel." München : Verlag Dr. Hut, 2016. http://d-nb.info/1100968083/34.
Full textAbualnaj, Matoka h. Mohammed A. "Diastereoselective synthetic approaches to functionalised tetrahydropyrrolo[3,4-a] carbazole derivatives." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3265.
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