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Dissertations / Theses on the topic 'Pyrroles. Organic compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Lee, Sze-ming. "An investigation into novel synthetic routes for 3h-pyrroles /." [Hong Kong : University of Hong Kong], 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12561915.

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2

李思明 and Sze-ming Lee. "An investigation into novel synthetic routes for 3h-pyrroles." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B31209257.

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3

Zhang, Yanan. "Approaches to the total synthesis of the lamellarins and related natural products." Diss., Online access via UMI:, 2005.

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4

Chiu, Pak-kan. "Isolation of hydroxypyrrolines in the Paal-Knorr reaction; and the synthesis and properties of 3H-phrroles carrying an ester or nitrile group at C-3 /." [Hong Kong : University of Hong Kong], 1988. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12428553.

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5

楊小雯 and Siu-man Yeung. "The synthesis and reactions of 3H-pyrroles bearing methyl and aryl groups." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31210119.

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6

Sandrin, Franco. "Lewis acid catalyzed reactions of 1-benzyl-2, 5-bis (trimethylsiloxy) pyrrole." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66047.

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7

Igdir, A. Cigdem. "Reinvestigation Of The Synthetic And Mechanistic Aspects Of Manganese(iii) Acetate Mediated Reactions Synthesis Of 1,2,4-trisubstituted Pyrroles Via Amination / Annulation Reactions Of Chloroenones With Chiral Amine Compounds." Phd thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607643/index.pdf.

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The first part of the thesis presents the reinvestigation of the synthetic and mechanistic aspects of manganese (III) acetate mediated reactions. The main concern about this subject was to perform a &cent<br>- acetoxylation reactions of enones and saturated systems in shorter reactions times and higher yields than the ones known in literature reproducibly. Although successful a &cent<br>-acetoxylation of a great variety of substrates have been reported so far, there are some problems associated with the use of Mn(OAc)3. Considering that there are not many simple methods for the direct acetoxyl

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8

Aybey, Asuman. "Synthesis Of Chiral Lactones Via The Baeyer Villiger Oxidation Of Cyclic Aromatic Acetoxy Ketones Novel Annulation Reactions Of 2-propynyl-1,3-dicarbonyl Compounds To Form Pyrroles Addition Of Acyl Phosphonates To Diethyl Cyanophosphonate (depc)." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12610293/index.pdf.

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Chiral Baeyer-Villiger (BV) oxidation of cyclic ketones allows rapid access to asymmetric lactones as valuable intermediates in organic chemistry and frequently encountered precursors in enantioselective synthesis. In the first part, BV oxidation of functionalized ketones, especially cyclic &amp<br>#61537<br>-hydroxy and acetoxy ketones is described which could be a straightforward route to the &amp<br>#61537<br>-hydroxy lactones and &amp<br>#61537<br>-hydroxyalkanoic acid derivatives. The &amp<br>#61537<br>-acetoxylation of indanone, tetralone and chromanone derivatives by using Mn(OAc)3 fol

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9

趙百勤 and Pak-kan Chiu. "Isolation of hydroxypyrrolines in the Paal-Knorr reaction; and the synthesis and properties of 3H-phrroles carrying an ester or nitrilegroup at C-3." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B31231524.

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10

Kayalar, Metin. "Synthesis Of 1,2,3,5-tetrasubstituted Pyrrole Derivatives Via 5-exo-dig Type Cyclization And Stereoselective Functionalisation Of Ferrocene Derivatives." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605757/index.pdf.

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ABSTRACT SYNTHESIS OF 1,2,3,5-TETRASUBSTITUTED PYRROLE DERIVATIVES VIA 5-EXO-DIG TYPE CYCLIZATION AND STEREOSELECTIVE FUNCTIONALISATION OF FERROCENE DERIVATIVES Metin Kayalar M.S., Department of Chemistry Supervisor: Prof. Dr. Ayhan S. Demir January 2005, 102 pages A convenient and new method for the synthesis of 1,2,3,5-tetrasubstituted pyrrole derivatives starting from 1,3,-dicarbonyl compounds through acid catalyzed cyclization reaction is described. Alkylation of 1,3-dicarbonyl compound with propargyl bromide followed by one step cyclization with the introduction of primary amines in

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11

Estel, Lionel. "Fonctionnalisation d'aminopyridines par métallation : application à la synthèse d'hétérocycles." Rouen, 1988. http://www.theses.fr/1988ROUES035.

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L'action d'aldéhydes aromatiques sur des pivalolaminopyridines ortho lithiées a donné des alcools secondaires qui ont été oxydés en cétones. Ceci permettant une synthèse en 4 étapes des amino-2 pyridyl-3, amino-3 pyridyl-4 et amino-4 pyridyl-3 arylméthanones. De la même façon, la fluoro-4 lithio-3 pyridine conduit à l'amino-4 pyridyl-3 phénylméthanone. Pour montrer l'intérêt de la méthode, des pyridopyrimidinones et des benzonaphtyridines ont été synthétisées. Par ailleurs, la fluoro-2 pyridine métallée, réagit avec l'iode pour donner des iodo-3 pyridines diversement substituées en 2. Une synt

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12

Daire, Fabrice. "Etude d'electrodes modifiees par fixation de composes de coordination sur un support conducteur du type polypyrrole : application en electrosynthese organique." Paris 6, 1988. http://www.theses.fr/1988PA066176.

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Proprietes electrochimiques des complexes co-l, cu-l, ni-l (ou l=methyl-4, bipyridine-2,2', derive du pyrrole) dans l'acetonitrile. Polymerisation electrolytique de ces complexes sur des electrodes d'or, platine et carbone. Proprietes electrochimiques du polymere co-bipyridyl-polypyrrole; utilisation dans la reduction catalytique des derives allyliques

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13

Tingry, Sophie. "Synthèse et application en hydrogénation électrocatalytique de films de polypyrrole fonctionnalisés par des complexes du rhodium et de l'iridium." Université Joseph Fourier (Grenoble ; 1971-2015), 1996. http://www.theses.fr/1996GRE10137.

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Ce memoire est consacre a la synthese d'electrodes modifiees (em) par des films de polypyrroles fonctionnalises par des complexes polypyridiniques de metaux de transition et a leur application en electrocatalyse en milieu aqueux. Une partie de ce travail de recherche a ete orientee vers l'amelioration de l'efficacite, de la stabilite et de la selectivite de films de polymeres derives des complexes rh(l)#2(cl)#2#+ (l=2,2'-bipyridine ou 1,10-phenanthroline substituees), vis-a-vis de l'hydrogenation electrocatalytique (hec) de substrats organiques insatures. En particulier, nous avons montre que

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14

Bedioui, Fethi. "Etude électrochimique de complexes de métaux de transition (bases de Schiff et porphyrines) en solution et sous forme d'électrodes modifiées : application à la catalyse électroassistée de réactions organiques." Paris 6, 1986. http://www.theses.fr/1986PA066338.

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Les propriétés électrochimiques des complexes co-base de Schiff (phenylene-bis(salicylideneiminoto)-co, ou Co(II)saloph, et n-methylenepropylene-bis-(salicylideneiminoto)-co, ou co-selnmedpt) et de tetraphenylporphine-co, ou CoTPP, sont utilisées pour étudier la réduction électroassistée d'halogénures organiques, Rx, avec un catalyseur fixe sur support conducteur, en milieu organique. On étudie: 1) la réduction du chlorure de benzyle électrocatalysée par des électrodes de graphite modifiées par du co-saloph et 2) l'oxydation par l'oxygène moléculaire du di-tert-butylphenol, électrocatalysée pa

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15

Schmitt, Gérard. "Réactions de l'hydrofluoroborate d'un composé de Reissert sur divers alcenes : Compétition entre cycloaddition dipolaire-1,3 et cycloaddition de Diels-Alder." Besançon, 1987. http://www.theses.fr/1987BESA2041.

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16

Haelters, Jean-Pierre. "Synthèse de dérivés phosphono-indoliques-benzofuranniques et -pyrroliques à partir d'hydrazones phosphonates." Brest, 1987. http://www.theses.fr/1987BRES2002.

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Des derives phosphonoindoliques sont prepares par cyclisation d'arylhydrazones d'oxoalkylphosphonates selon fisher et par cyclodeshydratation d'arylamino-1 et arylamino-3 oxo-2 propylphosphonates selon bischler. Des indolyl-2 et indolyl-3 phosphonates, des indolylmethyl-2 et des indolylmethyl-3 phosphonates diversement substitues et leurs acides phosphoniques correspondants sont decrits. Toutes structures sont analysees par rmn **(1)h, **(31)p et 1**(3)c. L'analogue phosphore de l'intermediaire a aussi ete prepare. L'extention de la reaction de bischler aux aryloxycetones permet d'atteindre de

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17

Lesenyeho, Lehlogonolo Godfrey. "Palladium-catalyzed heteroannulation of 2-ARYL- 3-IODO-4-(Phenylamino)quinolines and 4-(N,N-allylphenylamino)-2-ARYL-3-iodoquinolines." Diss., 2010. http://hdl.handle.net/10500/3970.

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The previously described 2-aryl-4-chloro-3-iodoquinolines were prepared following literature procedure and in turn converted to the corresponding hitherto unknown 2-aryl-3-iodo-4-(phenylamino)quinoline derivatives using aniline in refluxing ethanol. These 2-aryl-3-iodo-4-(phenylamino)quinolines were reacted with allybromide in ethanol at room temperature to afford 4-(N,N-allylphenylamino)-2-aryl-3-iodoquinoline derivatives. The 2-aryl-3-iodo-4-(phenylamino)quinoline and 4-(N,N-allylphenylamino)-2-aryl-3-iodoquinoline derivatives were subjected to metal-catalysed carbon-carbon bond formations.

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18

Oyeyiola, Felix Adetunji. "2-ARYL-6,8-Dibromoquinolinones as synthons for the synthesis of Polysubstituted 4-ARYL-6-Oxopyrrolo [3,2,1-ij] Quinolines." Thesis, 2015. http://hdl.handle.net/10500/21206.

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The known 2-aryl-6,8-dibromo-2,3-dihydroquinolin-4(1H)-ones 122 were dehydrogenated using thallium(III) p-tolylsulfonate in dimethoxyethane under reflux to afford the 2-aryl-6,8-dibromoquinolin-4(1H)-ones 136. Palladium-catalyzed Sonogashira cross-coupling of the 2-aryl-6,8-dibromo-2,3-dihydroquinolin-4(1H)-ones with terminal alkynes in the presence of PdCl2(PPh3)2-CuI (as homogeneous catalyst source) and 10% Pd/C-PPh3-CuI (as heterogeneous catalyst source) catalyst mixture and NEt3 as a base and co-solvent in ethanol under reflux afforded the corresponding 6,8-dialkynyl-2-aryl-2,3-dihydroqui

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