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Dissertations / Theses on the topic 'Oxazole derivative'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

BARRECA, Marilia. "[1,2]OXAZOLE DERIVATIVES: SYNTHESIS AND BIOLOGICAL EVALUATION AGAINST MULTIPLE MALIGNANT CELL TYPES." Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/497882.

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2

Pritchard, Martin David. "Investigations on the synthesis of new photochromic oxazine derivatives." Thesis, University of Edinburgh, 2000. http://hdl.handle.net/1842/11283.

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Initial studies were based on previous work at Edinburgh in which the reaction of the lithium salt of 1,2-naphthalenedione 1-oxime with 2-bromo-2,2-diphenylacetaldehyde was found to afford an oxime ether which was reduced with triphenylphosphine to afford 3,3-diphenyl-3<i>H</i>-naphth[2,1-<i>b</i>]-1, 4-oxazine. Similarly, 2,2-diphenyl-2<i>H</i>-naphth[1,2-<i>b</i>]-1,4-oxazine was prepared in a parallel synthetic strategy using 1,2-naphthalenedione 2-oxime as key starting material. To facilitate the expansion of this strategy, further bromo-aldehydes functionalised with variously substituted

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3

Rowe, David Martin. "Investigations of the synthesis of new photochromic oxazine and oxadiazine derivatives." Thesis, University of Edinburgh, 1996. http://hdl.handle.net/1842/12884.

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This thesis is concerned with the investigation of new synthetic routes to novel oxazine and oxadiazine derivatives which are of potential photochromic importance. A general synthetic strategy for the synthesis of 2,2-disubstituted 2H-benz-1,4-oxazines based on the synthesis of 2-nitrophenoxyacetaldehydes and their reductive cyclisation via a situ ring closure of intermediate 2-aminophenoxyacetaldehydes was investigated. Various attempts having failed to achieve the reductive cyclisation of the 2-nitrophenoxyacetaldehydes to the 2H-benz-1,4-oxazines, attention was turned to an alternative appr

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4

Laughton, Peter. "Synthesis of #beta#-carboxyaspartic acid derivatives and studies on 3-methoxycarbonylmethylene-3,4,5,6-tetrahydro- 2H-1,4-oxazine-2-one derivatives." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390088.

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5

Felsmann, Marika. "Clathratbildner vom Bis-1,3-azol-Typ." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola&quot, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-26675.

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Gegenstand dieser Arbeit ist die Synthese und Charakterisierung von Bis-1,3-azol-Derivaten insbesondere im Hinblick auf ihre potentielle Einsatzfähigkeit als chemisches Sensormaterial. Nach bereits bekannten Methoden gelang es, zehn neue Bisoxazol-Derivate sowie zehn neue Dicarbonsäurediester herzustellen. Weiterhin wurden 13 neue Bisimidazol- und vier neue Lophin-Derivate synthetisiert. Die erhaltenen Röntgeneinkristallstrukturanalysen zeigen, dass vor allem lineare Bisimidazol- und Bisoxazol-Derivate gute Eigenschaften als Clathratbildner aufweisen. Die Bisoxazol-Derivate mit Pyridin als Spa

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6

Felsmann, Marika. "Clathratbildner vom Bis-1,3-azol-Typ: Synthese, Komplexierung und sensorisch nutzbares Fluoreszenzverhalten." Doctoral thesis, TU Bergakademie Freiberg, 2009. https://tubaf.qucosa.de/id/qucosa%3A22698.

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Gegenstand dieser Arbeit ist die Synthese und Charakterisierung von Bis-1,3-azol-Derivaten insbesondere im Hinblick auf ihre potentielle Einsatzfähigkeit als chemisches Sensormaterial. Nach bereits bekannten Methoden gelang es, zehn neue Bisoxazol-Derivate sowie zehn neue Dicarbonsäurediester herzustellen. Weiterhin wurden 13 neue Bisimidazol- und vier neue Lophin-Derivate synthetisiert. Die erhaltenen Röntgeneinkristallstrukturanalysen zeigen, dass vor allem lineare Bisimidazol- und Bisoxazol-Derivate gute Eigenschaften als Clathratbildner aufweisen. Die Bisoxazol-Derivate mit Pyridin als Spa

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7

Viswanathan, Subha. "Nitro- and oxazoline-derivatized antennas structural and photophysical characterization of their lanthanide complexes /." Related electronic resource:, 2007. http://proquest.umi.com/pqdweb?did=1362530571&sid=2&Fmt=2&clientId=3739&RQT=309&VName=PQD.

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8

Tauhardt, Lutz Verfasser], Ulrich Sigmar [Akademischer Betreuer] [Schubert, and Dagmar [Akademischer Betreuer] Fischer. "Poly(2-oxazoline)s and their derivatives : a versatile polymer class with manifold application possibilities / Lutz Tauhardt. Gutachter: Ulrich Sigmar Schubert ; Dagmar Fischer." Jena : Thüringer Universitäts- und Landesbibliothek Jena, 2015. http://d-nb.info/1067098801/34.

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9

Tauhardt, Lutz [Verfasser], Ulrich Sigmar [Akademischer Betreuer] Schubert, and Dagmar [Akademischer Betreuer] Fischer. "Poly(2-oxazoline)s and their derivatives : a versatile polymer class with manifold application possibilities / Lutz Tauhardt. Gutachter: Ulrich Sigmar Schubert ; Dagmar Fischer." Jena : Thüringer Universitäts- und Landesbibliothek Jena, 2015. http://d-nb.info/1067098801/34.

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10

Roy, Amélie. "Synthetic studies of the formation of oxazoles and isoxazoles from N-acetoacetyl derivatives, scope and limitations ; and Aqueous rhodium-catalyzed Heck-type coupling reactions between boronic acids and olefins." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0021/MQ53366.pdf.

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11

Guerpin, Valérie. "Synthèse et étude de phases stationnaires dérivées d'oxazolines chirales pour la chromatographie énantiosélective en phase gazeuse et en phase liquide haute performance." Rouen, 1996. http://www.theses.fr/1996ROUES016.

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Après une revue bibliographique des phases stationnaires chirales (PSC) en chromatographie en phase gazeuse (CPG) et en phase liquide haute performance (CLHP), la synthèse et l'étude de nouvelles PSC dérivées de molécules d'oxazolines sont présentées parallèlement dans ces deux techniques chromatographiques. La synthèse de polyhydrogénométhylsiloxanes (PHMS) de rapports d'unités siloxanes différents et le greffage d'oxazolines insaturées par réaction d'hydrosilylation ont permis d'accéder à différents polysiloxanes chiraux. La caractérisation des PHMS et des polysiloxanes chiraux est réalisée

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12

Tsyganenko, Kira Alexeevna. "Photochromisme par électrocyclisation : étude de spirooxazines et de diaryléthènes." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10269.

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Le photochromisme du 1, 3, 3-trimethyle-6-piperidinyle-spiro-2,33h indoline 2, 1-b napht-1, 4-oxazine a ete etudie par absorption transitoire dans differents solvants. Deux formes colores metastables, avec differentes caracteristiques cinetiques et spectrales, ont ete observees. Leurs durees de vie a temperature ambiante sont respectivement dans le domaine de la milliseconde et de la seconde. Ces deux formes se decolorent independamment l'une de l'autre dans les solvants aromatiques, tandis que dans les alcools la forme rapide disparait au profit de la forme lente. Le solvatochromisme de ces d

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13

Al, Atassi Yomen Al Sayed Souleiman. "Photochromisme et génération de second harmonique par voie photoassistée en milieu polymère : spiropyranne - photomérocyanine." Cachan, Ecole normale supérieure, 1996. http://www.theses.fr/1996DENS0010.

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Certains polymères, dopés ou fonctionnalisés avec des groupements moléculaires convenablement choisis, ont la propriété de doubler la fréquence de faisceaux lasers (génération de second harmonique). Pour cela, il faut au préalable que l'échantillon sous forme d'un film mince, ait été orienté sous champ électrique. Le sujet de cette thèse consiste à étudier un nouveau procédé d'orientation des molécules, que nous appelons orientation photo assistée. Ce procédé qui a l'avantage d'opérer à température ambiante met en œuvre une irradiation en lumière visible et en présence d'un champ électrique. C

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14

Wong, Yung-Sing. "Nouveaux intermediaires chiraux de type 1,4-dihydropyridine et equivalents de sels de 3,4-dihydropyridinium pour la synthese asymetrique de piperidines polysubstituees. Application a la synthese enantioselective du 3-ppp et de l'indolizidine 195b." Paris 11, 1994. http://www.theses.fr/1994PA112105.

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L'application de la reaction de zincke a des amines primaires enantiomeriquement pures a donne des sels de pyridinium portant un centre asymetrique directement fixe sur l'azote, a partir de la pyridine correspondante, substituee ou non en position 3. L'etude de la reduction par le dithionite de sodium de ces sels a conduit de maniere efficace a de nouveaux intermediaires 1,4-dihydropyridines chiraux. La reduction des sels n-substitues par une chaine phenylethanol donne des 1,4-dihydropyridines qui s'isomerisent en 3,7,8,8a-tetrahydro-2h-oxazolo3,2-apyridines. Une etude structurale a ete entrep

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15

Li, Jia-Yu, and 李佳育. "Synthesis and Biological Evaluation of Naphtho[1,2-d]oxazole Derivatives." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/18172955397292857899.

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碩士<br>高雄醫學大學<br>醫藥暨應用化學研究所<br>98<br>This thesis describes preparation and anti-inflammatory evaluation of certain naphtho[1,2-d]oxazole derivatives which possess the three-ring coplanar pharmacophore. The anti-inflammatory activities with respect to the structural modification on C-2 and C-5 of the naphtho[1,2-d]oxazole pharmacophore have been explored and the preliminary structure-activity relationships have been established. Among these naphtho[1,2-d]oxazole derivatives, compound 27a is the most active against lipopolysaccharide (LPS) induced NO production. Compound 27a is capable of inhibit

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16

Shiun, Lin Chorng, and 林崇薰. "Synthesis of Pyrimido[1,6-c]][1,3]oxazine Derivatives As." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/50977688767899278456.

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碩士<br>國防醫學院<br>藥學研究所<br>83<br>A mimicry analog of anti conformation acyclic pyrimidine nucleosides,8-amino-2,2-bis(hydroxymethyl)-9-methyl-1H,2H, 4H- pyrimido[1,6-c][1,3]oxazin-6-one,was synthesized in our laboratory and showed a slight activity against HIV(IC50=35mM). In order to optimizee the anti-HIV activity and gain a broad spectrum of structure-activity relationship of these anti conformation acyclic pyrimidine nucleosides , halogenation on the C-9 position and deletion of one of bish

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17

Morais, Goreti Ribeiro, Rudi Santiago Oliveira, and Robert A. Falconer. "Selective synthesis of Neu5Ac2en and its oxazoline derivative using BF3-Et2O." 2009. http://hdl.handle.net/10454/6107.

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18

Ribeiro, Morais Goreti, Rudi S. Oliveira, and Robert A. Falconer. "Selective synthesis of Neu5Ac2en and its oxazoline derivative using BF3.Et2O." 2009. http://hdl.handle.net/10454/4616.

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No<br>Application of the Lewis acid BF3·Et2O to the selective synthesis of 5-acetamido-2,6-anhydro-3,5-dideoxy-d-glycero-d-galacto-non-2-enonic acid (Neu5Ac2en) and the related oxazoline, methyl 7,8,9-tri-O-acetyl-2,3,4,5-tetradeoxy-2,3-didehydro-2,3-trideoxy-4',5'-dihydro-2'-methyloxazolo[5,4-d]- d-glycero-d-talo-non-2-enonate is described.

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19

Chen, Rong-Jiunn, and 陳榮峻. "Polymer-Supported Benzotriazole, Hexamethylphosphoramide and 2-[2-(Diphenylphosphorino)phenyl]oxazoline Derivatives in Catalytic Organic Synthesis." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/07970409917784662775.

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博士<br>國立臺灣大學<br>化學研究所<br>91<br>Abstract In this thesis, we develop several organic catalysts which could be immobilized on polymer supports. Our main goal is to study their catalytic activities and recovering feasibility. The following polymer-supported catalysts were prepared: 1) Wang’s resin, Merrifield resin, and polyethylene (PEG) supported benzotriazoles, 2) PEG supported hexamethylphosphoramides, and 3) Merrifield resin supported 2-[2-(diphenylphosphorino)phenyl]oxazolines. 1H-Benzotriazole-5-carboxylic acid was used as the starting material for the preparation of p

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20

LIN, YEN-CHUNG, and 林燕君. "Synthesis and Pharmacology of Tricyclic 1-Benzopyrano[3,4-b][1,4]Oxazine Derivatives as Potassium Channel Openers." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/06973483504569290979.

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碩士<br>國立臺灣大學<br>藥學研究所<br>87<br>As rigid analogs of the prototype potassium channel opener (POC) cromakalim, a series of optically active hexahydro benzopyrano[3,4-b][1,4] oxazine derivatives have been synthesized. The PCO activity of target compounds were evaluated in vitro with preparations of spontaneous contracting rat portal vein and KCl-stimulated rat detrusor strip. Target compounds (+)-37a-c are acylation products of (4aR,10aS)-1,2,3,4a,5,10b-hexahydro-5,5-dimethyl-1-benzopyrano[3,4-b][1,4] oxazine-9-carbonitrile ((+)-41). The starting epoxide (-)-39, prepared form 6-cyano-

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21

Afarinkia, Kamyar, A. Bahar, M. J. Bearpark, et al. "An Investigation of the Diels-Alder Cycloadditions of 2(H)-1,4-Oxazin-2-ones." 2005. http://hdl.handle.net/10454/3750.

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No<br>Forumla chem. . A variety of 5-chloro-2(H)-1,4-oxazin-2-ones bearing a range of substituents at their 3- and 6-positions undergo Diels-Alder cycloaddition as a 2-azadiene component with electron-rich, electron-deficient, and electron-neutral dienophiles. These reactions proceed with moderate regio- and stereoselectivity to afford relatively stable and readily isolable bridged bicyclic lactone cycloadducts. Chemical manipulation of these cycloadducts affords highly substituted and functionally rich piperidines. The regio- and stereochemical preferences of the cycloadditions of 5-chloro-2(

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