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Dissertations / Theses on the topic 'Nitrenen'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Schade, Olaf. "Zeitaufgelöste und kryogene Untersuchungen von Carbonylradikalen und Nitrenen." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963206753.

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2

Verhaar, Mark Theodoor. "Studies towards syntheses of enantiopure 1-azaadamantane-2-carboxylic acid derivatives." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2000. http://dare.uva.nl/document/57227.

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3

Afeke, Cephas Ofoe. "Chemistry of Acyl Nitrenes in the Synthesis of Carbamates and Complex Heterocycles." Youngstown State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1442410888.

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4

York, David C. "Synthesis of azaacridines using nitrene intermediates." Thesis, Keele University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254883.

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5

Grimshire, Michael J. "Studies on intramolecular trapping of N-nitrenes." Thesis, University of Leicester, 1986. http://hdl.handle.net/2381/33708.

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The research described in this Thesis is an investigation of the intramolecular trapping of N-nitrenes by alkenes and alkynes. In the former case, the objective was to try to obtain a description of the transition state geometry for concerted addition of nitrenes to double bonds. This was attempted by a study of intramolecular nitrene additions since in the latter, some control over the approach geometry of the interacting components can be exercised by design of the molecular framework. From the effect of changes in this framework upon the characteristics of the cycloaddition, and in particul

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6

Polshakov, Dmitrii Arkadyevich. "Ultrafast spectroscopy and dynamics of nitrenes and carbenes." Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1130968887.

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7

Vosswinkel, Michael. "Ring expansion and ring opening of heteroaromatic nitrenes." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968868576.

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8

Polshakov, Dmitrii A. "Ultrafast spectroscopy and dynamics of nitrenes and carbenes." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1130968887.

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9

Hamilton, Charles W. Ph D. Massachusetts Institute of Technology. "Nitrene transfer reactions by late transition metal complexes." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/38618.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2007.<br>Vita.<br>Includes bibliographical references.<br>This thesis presents nitrene transfer reactions that are catalyzed or mediated by late transition metal complexes. Sterically large, fluorinated supporting ligands are used to minimize potential side reactions. A new 1,10-phenanthroline ligand has been synthesized with 2,4,6-(CF3)3C6H2- groups in the 2- and 9-positions (1). A cationic copper(l) complex of 1 catalyzes nitrene transfer from N-(p-toluenesulfonylimino)phenyliodinane (PhlNTs) to the C-H bonds of 1,3-

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10

Ranaweera, Ranaweera Arachchilage Ajantha Upul. "Photo-induced Nitrogen and Carbon Based Radicals; A study on triplet nitrenes, triplet 1,2 and 1,3-biradicals." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337887740.

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11

Morgan, Scott Christopher. "Experimental and theoretical considerations of carbenes, diazirines, and nitrenes /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487779120907133.

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12

Liang, Shengwen. "Nitrene Transfer Reactions Mediated by Transition Metal Scorpionate Complexes." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1339005115.

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13

Bedi, Sahouo Gustave. "Fonctionnalisation d'hydrocarbures par transferts de nitrenes catalyses par les metalloporphyrines." Paris 6, 1988. http://www.theses.fr/1988PA066050.

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14

Hostetler, Katherine J. "The photochemistry and 1,3-dipolar cycloadditions of 4-azidopyridine-N-oxide." Virtual Press, 2005. http://liblink.bsu.edu/uhtbin/catkey/1328115.

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We have investigated the chemistry of 4-azidopyridine-N-oxide. One aspect of this thesis involved the photolysis of this azido heteroaromatic-N-oxide, to generate highly reactive nitrene intermediates. We have studied these intermediates and determined that the intermediates vary significantly in structure and reactivity from those of simpler phenyl and pyridyl systems. This study yields new insight into the structure, bonding, and energetics of nitrene species.The nitrene intermediate originating from this azide has features which could in the future help in synthetic practices and photoaffin

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15

Voigt, Anja. "Zur Chemie photolytisch generierter Arylnitrene in Polymermatrizen." Doctoral thesis, [S.l. : s.n.], 1998. http://deposit.ddb.de/cgi-bin/dokserv?idn=955351111.

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16

Liu, Peng, and 劉鵬. "Oxidation and nitrene transfer reactions catalyzed by iron-oligopyridine complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42664275.

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17

Gill, Joseph B. "Co(II) Based Metalloradical Catalysis| Carbene and Nitrene Transfer Reactions." Thesis, University of South Florida, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3666726.

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<p> Radical chemistry has attracted a large amount of research interest over the last few decades and radical reactions have recently been recognized as powerful tools for organic synthesis. The synthetic applications of radicals have been demonstrated in many fields, including in the synthesis of complex natural products. Radical reactions have a number of inherent synthetic advantages over their ionic counterparts. For example, they typically proceed at fast reaction rates under mild and neutral conditions in a broad spectrum of solvents and show significantly greater functional group tolera

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18

Liu, Peng. "Oxidation and nitrene transfer reactions catalyzed by iron-oligopyridine complexes." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42664275.

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19

何毅雯 and Ngai-man Emmie Ho. "The chemistry of ruthenium carbonyl clusters containing nitrene and nitrido ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B3124029X.

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20

Ho, Ngai-man Emmie. "The chemistry of ruthenium carbonyl clusters containing nitrene and nitrido ligands /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21982351.

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21

Gamage, Disnani W. "Comparison of Isoxazole and Azirine as precursor to triplet vinyl nitrene." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337351136.

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22

MAHE, LOIC. "Physico-chimie en milieux organises : 1 stabilisation de nitrenes; 2 polymerisation d'heterocycles." Palaiseau, Ecole polytechnique, 1991. http://www.theses.fr/1991EPXX0031.

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Les materiaux moleculaires sont de plus en plus susceptibles de repondre aux imperatifs d'integration des circuits en microelectronique. Dans ce cadre, des nitrenes aromatiques exceptionnellement stables ont ete obtenus dans des cristaux, et peuvent servir au stockage d'information. Leur etude par resonance paramagnetique electronique (rpe) permet de mieux comprendre leur topochimie et leurs proprietes thermomagnetiques inhabituelles. D'autre part, la synthese et le dopage de polymeres conducteurs (polypyrroles et polythiophenes) ont ete realises et optimises en deux dimensions entre des plaqu

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23

Muldowney, Mark Patrick. "Mechanistic and synthetic studies of copper catalysed aziridination of alkenes." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297570.

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24

Ceroni, Mario. "Reactividad con tioéteres, precursores de nitrenos y trifenilalquilidenfosforanos." Revista de Química, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/101208.

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25

Tao, Jingran. "Asymmetric Nitrene Transfer Reactions with Azides via Co(II)-Based Metalloradical Catalysis (MRC)." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4590.

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Asymmetric nitrene transfer reactions via metalloradical catalysis (MRC) with azides has attracted research interest because of its fundamental and practical importance. The resulting nitrogen-containing units are recurrent motifs in biologically important molecules and can serve as versatile precursors in organic synthesis. The [Co(D2-Por*)] have emerged as a new class of catalysts for asymmetric aziridination and C-H amination. These metalloradical catalysts have been shown to be highly effective for the asymmetric intermolecular aziridination of a broad scope of substrates with different cl

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26

Ruppel, Joshua V. "Cobalt(II)-Catalyzed Atom/Group Transfer Reactions: Stereoselective Carbene and Nitrene Transfer Reactions." Scholar Commons, 2008. https://scholarcommons.usf.edu/etd/484.

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Metalloporphyrins have been shown to catalyze many fundamental and practically important chemical transformations, some of which represent the first demonstrations of these catalytic processes. The most notable examples include an assortment of atom/group transfer reactions, such as oxene, nitrene, and carbene transfers. Atom/group transfer reactions allow for the direct conversion of abundant and inexpensive alkenes and alkanes into value-added functional molecules. Previous reports from our group have shown that cobalt-porphyrin based carbene and nitrene transfer reactions are some of the mo

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27

Zhu, Kaicheng. "Total synthesis of (+)-SCH 351448 and rhodium catalyzed stereoselective nitrene/alkyne cycloaddition cascade." Thesis, Boston University, 2013. https://hdl.handle.net/2144/12900.

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Thesis (Ph.D.)--Boston University PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>SCH-351448 is a 28-membered C2-symmetric macrocyclic metabolite isolated from the fermentation broth of a Micromonospora microorganism. This macrodiolide selectively activates transcription of the low-density l

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28

Zhang, Xiaoming. "Explore the Formation of Triplet Nitrene - A Potential Intermediate for Building Organic Magnets." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353156258.

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29

Campbell, Stuart John. "S-substituted thiophenes as compounds of agrochemical interest." Thesis, University of Sunderland, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246187.

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30

Merişor, Elena. "Synthesis of N-neterocycles via intramolecular reductive cyclizations of nitroalkenes." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:100-opus-2768.

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31

Luk, Hoi Ling. "Computational and Experimental Studies of Excited States of Different Precursors of Carbenes and Nitrenes." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1342808166.

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32

Lee, Ka-hong. "The chemistry of mononuclear and polynuclear ruthenium carbonyl complexes containing nitrene and related ligands." Click to view the E-thesis via HKUTO, 1997. http://sunzi.lib.hku.hk/hkuto/record/B42574687.

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33

李家康 and Ka-hong Lee. "The chemistry of mononuclear and polynuclear ruthenium carbonyl complexes containing nitrene and related ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B42574687.

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34

Klima, Rodney F. "Triplet Alkyl Nitrene Intermediates: Photolysis of Alkyl Azides with Intermolecular and Intramolecular Triplet Sensitization." Cincinnati, Ohio : University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1100710601.

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35

Bedi, Sahouo Gustave. "Fonctionnalisation d'hydrocarbures par transferts de nitrènes catalysés par les métalloporphyrines." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376116323.

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36

Cabrejos, Caracciolo Wilson. "Reacciones del tricarbonil (n6 tolueno) cromo con precursores de nitrenos." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2011. http://tesis.pucp.edu.pe/repositorio/handle/123456789/592.

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El presente estudio se inicia con una revisión teórica de la síntesis del (n6- C6H5CH3)Cr(CO)3 y su reactividad frente a carbonilazidas orgánicas, como C6H5-C(O)-N3. Posteriormente se desarrolla la sección experimental que trata, en su primera parte, sobre la síntesis de (n6-C6H5CH3)Cr(CO)3. Se encontró una ruta para obtener a (n6-C6H5CH3)Cr(CO)3 la cual consistió en hacer reaccionar a Cr(CO)6 en tolueno por un lapso de 12 horas. También se puede llevar a cabo la reacción utilizando una mezcla de solventes que incluya suficiente THF para recuperar el Cr(CO)6 que sublima y queda depositado en l

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37

Liu, Jin. "Computational Studies of Anti-Tumor Drug Tirapazamine and Reactions and Rearrangements of nitrenes and Carbenes." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1124292551.

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38

Xiao, Wenbo, and 萧文博. "Ruthenium porphyrin catalyzed nitrene insertion into C-H bonds of aromatic heterocycles, aldehydes and alkanes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B50434317.

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Transition metal catalyzed selective nitrene insertion into C-H bonds, which allows direct incorporation of nitrogen functionality into hydrocarbons, represents an appealing methodology for C-N bond formation, a type of bond formation of great importance in organic synthesis due to the prevalence of amino groups in biologically active natural products and pharmaceuticals. Organic azides are atom-economic and an environment-benign nitrene source. This dissertation reports the use of organic azides as a nitrene source to develop a series of protocols for C-H bond functionalization by metal-cata

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39

Zhu, Peizhi, and 朱沛志. "Time-resolved resonance Raman and density functional theory studies ofselected para-phenyl substituted arylnitrenium ions and arylnitrenes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31246370.

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40

Mieres, Pérez Joel [Verfasser], Wolfram [Gutachter] Sander, and Patrick [Gutachter] Nürnberger. "High-spin nitrenes / Joel Mieres Pérez ; Gutachter: Wolfram Sander, Patrick Nürnberger ; Fakultät für Chemie und Biochemie." Bochum : Ruhr-Universität Bochum, 2018. http://d-nb.info/1150509910/34.

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41

Morello, Glenn. "Modeling Transition Metal Chemistry for Catalytic Functionalization of Molecules." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc84255/.

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The diversity of transition metal complexes allows for a wide range of chemical processes to be mediated by the metal, from catalysis to surface chemistry. Investigations into the structure and electronic configuration of transition metal complexes allow for tuning of desired species by modifications to the ligands and/or metals to achieve more efficient thermodynamics and kinetics for the process of interest. Transition metals, often used in catalysts for a number of important processes, require detailed descriptions of intermediates, transition states and products to fully characterize a rea

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42

Sun, Zhicheng. "Computational Study of C−H/C−C Activation and Functionalization with Nitrene, Carbene and Related Complexes." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1752352/.

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This dissertation involves inorganic/organometallic catalysis models, in particular the functionalization of carbon-hydrogen and carbon-carbon bonds. Computational methods have been utilized to better understand the factors affecting the kinetics and thermodynamics of C−H and C−C bond activation/functionalization in this dissertation. Chapter 2 investigates methane C−H activation with a diiminopyridine nitride/nitridyl complex of 3d transition metals and main group elements via three competing pathways: 1,2-addition/[2 + 2] addition, insertion and H-atom abstraction/proton coupled electron t

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43

Tian, Weiwei. "Rhodium-mediated carbene insertion synthesis of (-)-hamigeran B and the (-)-sordaricin core /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 119 p, 2008. http://proquest.umi.com/pqdweb?did=1609287781&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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44

Mandel, Sarah Marie. "Photolysis of Alkyl Azides Containing an Aryl Ketone Chromophore in Solution and the Solid-state." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1099539420.

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45

Fauché, Kévin. "NHC portant des azotures : intermédiaires dans la synthèse catalysée d‘hétérocycles polyazotés et auto-fonctionnalisation de complexes métal-NHC." Thesis, Université Clermont Auvergne‎ (2017-2020), 2018. http://www.theses.fr/2018CLFAC062/document.

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Les carbènes N-hétérocycliques (NHC) sont très utilisés pour complexer les métaux de transition. Ils quittent rarement ce rôle de ligand ancillaire et trouvent, depuis une vingtaine d’années, des applications en catalyse ou, plus récemment, en chimie médicinale. Dans ce travail, nous discuterons d’une méthode de synthèse douce conduisant à la formation de complexes AgI – NHC via une source d’argent soluble. Cette méthode nous a permis d’obtenir des complexes bien connus mais également d’accéder à une nouvelle série de complexes NHC-Ag-phosphine. Nous présenterons également

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46

Méndez, Vega Enrique [Verfasser], Wolfram [Gutachter] Sander, and Patrick [Gutachter] Nürnberger. "Carbenes and nitrenes in reactive matrices / Enrique Méndez Vega ; Gutachter: Wolfram Sander, Patrick Nürnberger ; Fakultät für Chemie und Biochemie." Bochum : Ruhr-Universität Bochum, 2018. http://d-nb.info/1160442363/34.

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47

Badiei, Yosra Mohammed. "Copper carbenes and nitrenes capture of elusive intermediates and the development of a copper catalyzed C-H amination reaction /." Connect to Electronic Thesis (CONTENTdm), 2009. http://worldcat.org/oclc/458487923/viewonline.

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48

Spinato, Cinzia. "Development of chemical strategies to prepare multifunctional carbon nanotubes for anticancer therapy." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAF037.

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L’application de nanotubes de carbone (CNTs) dans le domaine biomédical a été largement explorée grâce à leur propriétés physico-chimiques et à leur biocompatibilité. Par la fonctionnalisation extérieur et/ou intérieur des CNTs c’est possible de préparer des nouveaux conjugués avec différentes propriétés et applications. On a exploré la modification des nanotubes par voie covalente pour leur utilisation comme vecteurs de biomolécules pour achever la thérapie anticancéreuse. Pendant ma thèse, j’ai travaillé sur trois projets: l’application de différentes approches pour la conversion des groupes

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49

Murthy, Rajesh S. "Effects of Chemical Environment on the Photochemical Behavior of Alkoxy Carbonyl Azides and 2-benzoyl-3-methyl-2H-Azirine." Cincinnati, Ohio University of Cincinnati, 2007. http://www.ohiolink.edu/etd/view.cgi?ucin1175296082.

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Thesis (Ph.D.)--University of Cincinnati, 2007.<br>Title from electronic thesis title page (viewed July 24, 2007). Includes abstract. Keywords: azide; nitrene; azirine; photolysis; argon matrix Includes bibliographical references.

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50

McKissic, Kelley S. "Understanding the Role of Energy in Chemical Reactions from Mechanics to Photochemistry." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439562321.

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