Literatura académica sobre el tema "Alkoxyamine synthesis"
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Artículos de revistas sobre el tema "Alkoxyamine synthesis"
Romero-Ibañez, Julio, Marina A. Ortega-Rojas, Jonathan R. Valdéz-Camacho, Luis G. Hernández-Vázquez, Fernando Sartillo-Piscil y Jaime Escalante. "Asymmetric Synthesis of trans-3-Alkoxyamino-4-Oxygenated-2-Piperidones Mediated by Transition-Metal-Free Dual C-H Oxidation and Its CAL-B-Assisted Enzymatic Resolution". Catalysts 13, n.º 4 (6 de abril de 2023): 703. http://dx.doi.org/10.3390/catal13040703.
Texto completoRoy, Raj Kumar, Chloé Laure, Diane Fischer-Krauser, Laurence Charles y Jean-François Lutz. "Convergent synthesis of digitally-encoded poly(alkoxyamine amide)s". Chemical Communications 51, n.º 86 (2015): 15677–80. http://dx.doi.org/10.1039/c5cc06646h.
Texto completoReyser, Thibaud, Tung H. To, Chinedu Egwu, Lucie Paloque, Michel Nguyen, Alexandre Hamouy, Jean-Luc Stigliani et al. "Alkoxyamines Designed as Potential Drugs against Plasmodium and Schistosoma Parasites". Molecules 25, n.º 17 (24 de agosto de 2020): 3838. http://dx.doi.org/10.3390/molecules25173838.
Texto completoBallard, Nicholas, Miren Aguirre, Alexandre Simula, Jose R. Leiza, Steven van Es y José M. Asua. "High solids content nitroxide mediated miniemulsion polymerization of n-butyl methacrylate". Polymer Chemistry 8, n.º 10 (2017): 1628–35. http://dx.doi.org/10.1039/c7py00067g.
Texto completoLukkarila, Julie L., Gordon K. Hamer y Michael K. Georges. "Stable free radical polymerization––acrylate alkoxyamine synthesis". Tetrahedron Letters 45, n.º 27 (junio de 2004): 5317–19. http://dx.doi.org/10.1016/j.tetlet.2004.04.145.
Texto completoSchoening, Kai-Uwe, Stefan Hauck, Walter Fischer y Abdel-Ilah Basbas. "Synthesis of 3-Substituted Derivatives of 2,2,6,6-Tetramethylpiperidine-N-alkoxyamine Ethers: Novel Alkoxyamine Building Blocks". Synthesis 2010, n.º 22 (15 de septiembre de 2010): 3873–78. http://dx.doi.org/10.1055/s-0030-1258255.
Texto completoHe, Yan, Zhi Zheng, Yajie Liu, Jiajie Qiao, Xinying Zhang y Xuesen Fan. "Selective synthesis of β-nitrated N-heterocycles and N-nitroso-2-alkoxyamine aldehydes from inactivated cyclic amines promoted by tBuONO and oxoammonium salt". Chemical Communications 55, n.º 82 (2019): 12372–75. http://dx.doi.org/10.1039/c9cc05963f.
Texto completoLeroi, Corinne, Denis Bertin, Pierre-Emmanuel Dufils, Didier Gigmes, Sylvain Marque, Paul Tordo, Jean-Luc Couturier, Olivier Guerret y Marco A. Ciufolini. "Alkoxyamine-Mediated Radical Synthesis of Indolinones and Indolines". Organic Letters 5, n.º 26 (diciembre de 2003): 4943–45. http://dx.doi.org/10.1021/ol0358049.
Texto completoTirrell, David A. "Synthesis of alkoxyamine initiators for controlled radical polymerization". Journal of Polymer Science Part A: Polymer Chemistry 36, n.º 14 (octubre de 1998): 2667–68. http://dx.doi.org/10.1002/(sici)1099-0518(199810)36:14<2667::aid-pola26>3.0.co;2-f.
Texto completoYamaguchi, Kota, Takeshi Noda, Toshiki Tomizawa, Eriko Kanai y Hideaki Hioki. "Solid-Phase Friedländer Synthesis Using an Alkoxyamine Linker". European Journal of Organic Chemistry 2015, n.º 22 (30 de junio de 2015): 4990–95. http://dx.doi.org/10.1002/ejoc.201500426.
Texto completoTesis sobre el tema "Alkoxyamine synthesis"
Ruehl, Jean K. "Alkoxyamine initiators for nitroxide mediated radical polymerization : synthesis, characterization, and applications /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2008. http://uclibs.org/PID/11984.
Texto completoCavallo, Gianni. "Orthogonal synthesis of poly(alkoxyamine phosphodiester)s for data storage applications". Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAF016.
Texto completoUniform sequence-defined polymers were synthesized using a new iterative (AB+CD) strategy involving two orthogonal reactions. This approach allowed the protecting-group free synthesis of uniform poly(alkoxyamine phosphodiester)s. These molecules, having a defined sequence of comonomers defined as bits 0 and 1, enable the data storage of binary information at the molecular level. Interestingly, poly(alkoxyamine phosphodiester)s were found to be extremely easy to sequence. Indeed, the cleavage of the labile alkoxyamine bond in MS/MS generates “easy-to-read” fragmentation patterns. The sequencing was also tested using non-conventional techniques as fragmentation-free sequencing. Furthermore, the poly(alkoxyamine phosphodiester) backbone was modified using an extended alphabet. This optimization increases the storage capacity maintaining the read-out by MS/MS easy. Finally, two alkoxyamine bonds, having different stabilities, were inserted in the poly(alkoxyamine phosphodiester) backbone to obtain sequence-defined polymers which can be fragmented in defined positions of the chain using different stimuli
Morris, Jason C. "Photosensitive alkoxyamines: Synthesis and photochemical studies for potential application in nitroxide-mediated photopolymerization". Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/110527/1/Jason_Morris_Thesis.pdf.
Texto completoMorris, Jason. "Photosensitive alkoxyamines : synthesis and photochemical studies for potential application in nitroxide-mediated photopolymerization". Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4746.
Texto completoThe work reported herein details the synthesis, as well as the photophysical and photochemical analysis, of novel unsubstituted benzophenone-, methoxy substituted benzophenone-, pyrrolidine substituted benzophenone-, fluorenone-, anthraquinone-, phenyl-, naphthyl- and anthracenyl-based photosensitive alkoxyamines for potential application in nitroxide-mediated photopolymerization.The high photochemical stability of the isoindoline class of nitroxide was exploited within the structural design. Fusion of the isoindoline motif into the examined chromophores facilitated efficient energy transfer between chromophore and alkoxyamine motifs, whilst exerting minimal influence on the photophysical properties of the investigated chromophores. Photochemical investigation of the examined alkoxyamines highlighted two new classes of photosensitive alkoxyamines which displayed highly desirable photo-dissociation efficiencies to afford nitroxide and alkyl radicals under UV and visible light irradiation. Specifically, styrenic, methacrylic and acrylic naphthyl-based alkoxyamines, as well as, styrenic and methacrylic anthraquinone-based alkoxyamines demonstrated near quantitative yields of photo-dissociation under UV and visible light irradiation respectively. The high yields of photo-dissociation obtained for the naphthyl- and anthraquinone-based systems, as well as the high photochemical stability of their corresponding nitroxides, indicate these new classes of photosensitive alkoxyamines are highly relevant candidates for further investigation within a photopolymerization context
Morris, Jason. "Photosensitive alkoxyamines : synthesis and photochemical studies for potential application in nitroxide-mediated photopolymerization". Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4746.
Texto completoThe work reported herein details the synthesis, as well as the photophysical and photochemical analysis, of novel unsubstituted benzophenone-, methoxy substituted benzophenone-, pyrrolidine substituted benzophenone-, fluorenone-, anthraquinone-, phenyl-, naphthyl- and anthracenyl-based photosensitive alkoxyamines for potential application in nitroxide-mediated photopolymerization.The high photochemical stability of the isoindoline class of nitroxide was exploited within the structural design. Fusion of the isoindoline motif into the examined chromophores facilitated efficient energy transfer between chromophore and alkoxyamine motifs, whilst exerting minimal influence on the photophysical properties of the investigated chromophores. Photochemical investigation of the examined alkoxyamines highlighted two new classes of photosensitive alkoxyamines which displayed highly desirable photo-dissociation efficiencies to afford nitroxide and alkyl radicals under UV and visible light irradiation. Specifically, styrenic, methacrylic and acrylic naphthyl-based alkoxyamines, as well as, styrenic and methacrylic anthraquinone-based alkoxyamines demonstrated near quantitative yields of photo-dissociation under UV and visible light irradiation respectively. The high yields of photo-dissociation obtained for the naphthyl- and anthraquinone-based systems, as well as the high photochemical stability of their corresponding nitroxides, indicate these new classes of photosensitive alkoxyamines are highly relevant candidates for further investigation within a photopolymerization context
Launay, Kévin. "Synthèse de nouveaux espaceurs alcoxyamine pour la préparation de polymères encodés". Electronic Thesis or Diss., Aix-Marseille, 2020. http://www.theses.fr/2020AIXM0487.
Texto completoThe constant growth of the digital world requires more and more storage space. Data is however stored on devices whose life-times are counted in decades at best. Therefore, leading companies of the digital world like Microsoft have engaged efforts to produce DNA-based storage systems. This polymer however suffers from a major disadvantage: its structure is fixed by biology. Conversely, the structure of synthetic polymers can be chosen and adjusted to fit the user’s requirements in terms of writing and reading. This thesis is included in a project involving digital storage of information on poly(phosphodiester)s which proved able to produce polymer chains of size comparable to man-made DNA strands. These polymers are sequenced in mass spectrometry by dissociation of the phosphodiester bonds between the bits in MS/MS experiments. In order to facilitate their sequencing, the longest chains were separated into sub-segments through the inclusion of spacers with a low bond dissociation energy: alkoxyamines. Sub-segments were separated in MS/MS and sequenced in pseudo-MSpower3 experiments. However, the reading could not be automatized because of several undesired peaks. Indeed, the flexibility of the chain was so that the highly reactive carbon-radical issued from alkoxyamine fragmentation induced several undesired dissociation pathways leading to their emergence. Two strategies were pursued in this thesis to prevent these side reactions: reducing the radical reactivity and increasing the stiffness of the backbone structure. The first one proved insufficient but the second one allowed complete, automated millisecond sequencing
Tsimelzon, Anna. "Radical [n+1] annulations with sulfur dioxide and new methodology for the synthesis of specialized n-alkoxyamines /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2005. http://uclibs.org/PID/11984.
Texto completoNabokoff, Pierre. "Synthèses de précurseurs organiques de radicaux hétéroatomiques pour la préparation de matériaux hybrides". Electronic Thesis or Diss., Aix-Marseille, 2020. http://theses.univ-amu.fr.lama.univ-amu.fr/201218_NABOKOFF_575sxytx526xlluw827l449jumhkc_TH.pdf.
Texto completoThe aim of this work was to investigate the influence of the nanocofinement on the behaviour of organic substrates embedded in mesoporous silicas. This research hinged on two parts. The first study focused on the efficiency of the fragmentation reaction of confined alkoxyamines, under thermal or photochemical activation. Thanks to the comparison with the very same reactions in solution, the quantitative EPR measurements showed that the confinement of organic precursors had no effect on the efficiency of these reactions. Secondly, organic-inorganic hybrid materials were synthesized. These mesoporous silicas were functionalized with diazene radical precursors. Upon 360 nm irradiation, they generated heteroatomic radicals. Different materials were prepared, including one which enabled to form a face-to-face pair of different radicals, i.e. an aryloxyl radical in front of an arylsulfanyl radical. Studies carried out by continuous and pulsed wave EPR enabled to highlight the high stability of these confined paramagnetic species and to measure their relaxation times
Obame, Nkoghe Germain. "Synthèse et étude cinétique de l'homolyse de biomolécules utilisables comme agents théranostiques". Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4367.
Texto completoThis work is presented in 2 parts. The first part is dedicated to the stereocontrolled synthesis of 2 series of carbonucleosides of methylenecyclopropane structure. The target molecules are analogs of entecavir, a prodrug used in triple therapy to fight against HBV. The syntheses of the carbonucleosides targets of the series I use a common chiron, an alcohol obtained by enzymatic desymmetrization of meso-diol. For example, the chemical transformation of this key intermediate allows to obtain carbonucleoside (+)-16 in 8 steps as crucial steps involving a Curtius rearrangement and the construction of the uracil base with 23% overall yield. The carbonucleoside belonging to the series II was first synthesized in 10 steps involving a reaction of Mitsunobu, a chemical acylation. Howerer the enzymatic desymmetrization of a meso-diol did not get the target carbonucleoside in an enantiopur form. The second part is dedicated to the activation and the homolysis of the alcoxyamines for a theranostic application. The synthesis of the model alcoxyamine is made from vinyl pyridine and nitroxide SG1. Activation is carried out by protonation, oxidation, methylation and benzylation of the pyridyl part and highlights the importance of polarity. It allowed getting highly labile species that release an alkyl radical and nitroxide SG1, with notably higher kd dissociation constant values and therefore activation energies Ea lower compared to the alcoxyamine not enabled
Obame, Nkoghe Germain. "Synthèse et étude cinétique de l'homolyse de biomolécules utilisables comme agents théranostiques". Electronic Thesis or Diss., Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4367.
Texto completoThis work is presented in 2 parts. The first part is dedicated to the stereocontrolled synthesis of 2 series of carbonucleosides of methylenecyclopropane structure. The target molecules are analogs of entecavir, a prodrug used in triple therapy to fight against HBV. The syntheses of the carbonucleosides targets of the series I use a common chiron, an alcohol obtained by enzymatic desymmetrization of meso-diol. For example, the chemical transformation of this key intermediate allows to obtain carbonucleoside (+)-16 in 8 steps as crucial steps involving a Curtius rearrangement and the construction of the uracil base with 23% overall yield. The carbonucleoside belonging to the series II was first synthesized in 10 steps involving a reaction of Mitsunobu, a chemical acylation. Howerer the enzymatic desymmetrization of a meso-diol did not get the target carbonucleoside in an enantiopur form. The second part is dedicated to the activation and the homolysis of the alcoxyamines for a theranostic application. The synthesis of the model alcoxyamine is made from vinyl pyridine and nitroxide SG1. Activation is carried out by protonation, oxidation, methylation and benzylation of the pyridyl part and highlights the importance of polarity. It allowed getting highly labile species that release an alkyl radical and nitroxide SG1, with notably higher kd dissociation constant values and therefore activation energies Ea lower compared to the alcoxyamine not enabled
Capítulos de libros sobre el tema "Alkoxyamine synthesis"
Greene, Anna C. y Robert B. Grubbs. "Current Methods forN-Alkoxyamine Synthesis". En ACS Symposium Series, 81–93. Washington, DC: American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1024.ch006.
Texto completoKeul, Helmut, Dirk Achten, Birte Reining y Hartwig Höcker. "Synthesis of Oligomers by Stable Free Radical Polymerization of Acrylates, Methacrylates, and Styrene with Alkoxyamine Initiators". En ACS Symposium Series, 408–26. Washington, DC: American Chemical Society, 2000. http://dx.doi.org/10.1021/bk-2000-0768.ch029.
Texto completoNguyen, B. N., K. K. Hii, W. Szymański y D. B. Janssen. "Addition of Siloxy- and Alkoxyamines". En Stereoselective Synthesis 1 Stereoselective Reactions of Carbon—Carbon Double Bonds, 1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-201-00333.
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