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Dissertations / Theses on the topic 'Sulfate esters'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Proud, Andrew D. "Development of a protecting group for sulfate esters." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/12804.

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This work describes the development of a protecting group for sulfate monoesters in carbohydrates. After initial trial studies, the trifluoroethyl ester was selected as a suitable protecting group. The ester was formed from the sulfate by treatment with trifluoro diazoethane. This protection method is shown to be compatible with other common protecting groups used in carbohydrate chemistry. The protecting group is proven to be stable to the manipulations of many other protecting groups. The utility of monosaccharides incorporating protected sulfate esters in synthesis has been examined. It has

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2

Hamdan, Lama. "Caractérisation de la communauté fongique impliquée dans la minéralisation du soufre organique dans les rhizosphères de colza et d'orge." Thesis, Vandoeuvre-les-Nancy, INPL, 2010. http://www.theses.fr/2010INPL067N/document.

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En Europe de l’Ouest, S est devenu un élément limitant pour la croissance des plantes. Ainsi, des carences en S apparaissent de plus en plus fréquemment sur des cultures tel que le colza. Dans le sol, 95% de S est sous formes organiques, non disponibles pour les plantes. L’intervention de la microflore est indispensable pour assurer la minéralisation du S organique en sulfates, assimilables par la plante. Nos objectifs ont été de caractériser la communauté fongique impliquée dans la minéralisation des esters de S, forme majoritaire de S organique, via une activité arylsulfatase (ARS), dans les

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3

Delk, Roger Dale. "The effects of guanidinium chloride, urea and sodium dodecyl sulfate on the endoproteinase Glu-C- catalyzed hydrolysis of N-t-BOC-L-glutamic acid-gas-phenyl ester." Virtual Press, 1994. http://liblink.bsu.edu/uhtbin/catkey/897494.

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Endoproteinase Glu-C (EPGIu-C, EC 3.4.21.19), an enzyme isolated from the bacteria Staphylococcus aureus, has been found to cleave specifically at the carboxyl-terminal side of glutamyl and aspartyl peptide bonds. EPGIu-C has been reported to be stable and active in the presence of common denaturants such as guanidinium chloride, urea and sodium dodecyl sulfate (Drapeau, G.R. (1977) Methods in Enzymology, 47:189-191). In order assess the denaturant stability and activity of EPGIu-C, the effect of three common protein denaturants, guanidinium chloride, urea, and sodium dodecyl sulfate (SDS) on

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4

Cregut, Mickaël. "Caractérisation de la communauté bactérienne impliquée dans la minéralisation du soufre organique dans les rhizosphères de colza et d'orge." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL025N/document.

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Depuis une trentaine d’années, l’élément soufre (S) est devenu un des éléments les plus limitants pour la croissance des cultures du fait de nombreux facteurs, comme les nouvelles pratiques de gestion des sols et la limitation des pollutions anthropiques. Ainsi, des carences en S apparaissent au sein des cultures et particulièrement en Europe de l’Ouest. Nos objectifs ont été d’appréhender la communauté bactérienne fonctionnelle du sol qui, de par son activité arylsulfatase, permet la minéralisation de la forme majoritaire du S en sulfate (forme de S assimilée par les plantes). D’après nos rés

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5

Geldeard, L. J. "Fundamental studies on 2,4,6-trichlorophenyl sulfonate esters." Thesis, University College London (University of London), 2009. http://discovery.ucl.ac.uk/16659/.

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This thesis describes the application of 2,4,6-trichlorophenylsulfonate esters in the synthesis of sulfonamides. The sulfonamide unit is an important structural motif due to its frequent occurrence in a range of pharmaceuticals, particularly antibiotics. Sulfonamides can be readily synthesised from pentafluorophenyl (PFP) sulfonate esters and as an expansion to this 2,4,6 trichlorophenyl (TCP) sulfonates have been developed. These have the added advantage of lower toxicity and reduced cost of trichlorophenol. TCP sulfonates can be synthesised directly from sulfonic acids via activation by trip

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6

Omosa, Haron Moeti. "Studies on Several Diacetone-Glucose-derived Esters." Youngstown State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1628676922903541.

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7

Werry, Brian Scott. "Modifiable Poly(arylene ether)s and Hyperbranched Poly(esters)." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1187277614.

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8

Strickler, Ricky R. "Sulfinyl chlorides as a source of enantioenriched Ã,ß-unsaturated sulfinate esters and sulfoxides." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ56296.pdf.

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9

Yadlapalli, Jai Shankar K. "Preclinical evaluation of the 6-O-sulfate ester of morphine for the treatment of multimodal acute and chronic pain." Thesis, University of Arkansas for Medical Sciences, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3721351.

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<p> Chronic pain is a huge economic burden and a devastating complication requiring therapeutic interventions. This dissertation evaluated the analgesic potency, efficacy, tolerance and cross-tolerance profile of morphine and its ester derivative, morphine-6-<i>O</i>-sulfate (M6S) in a rat model of diabetic neuropathy, and in normal rats utilizing a multimodal pain domain approach (e.g., burning pain, pricking pain, and deep muscle pain). Diabetes was induced in male Sprague-Dawley rats with streptozotocin, 65mg/kg (intraperitoneally). Hot water tail-flick latency, paw pressure, pinprick sensi

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10

Alberico, Dino. "Diels-Alder reactions of Ã,ß-unsaturated sulfinate esters for the preparation of poly hydroxy/mercapto compounds." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ61867.pdf.

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11

Ames, R. L. "Nitric Acid Dehydration Using Perfluoro Carboxylate and Mixed Sulfonate/Carboxylate Membranes." Washington, D.C : Oak Ridge, Tenn. : United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/836112-qpoGij/native/.

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Thesis (Ph.D.); Submitted to Department of Chemical Engineering, Colorado School of Mines, Golden, CO (US); 1 Sep 2004.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "LA-14178-T" R.L. Ames. 09/01/2004. Report is also available in paper and microfiche from NTIS.

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12

Beji, Mohamed. "Heterocumulenes alpha -sulfonyles et leurs applications a la synthese de nouvelles structures heterocycliques : alkylation des esters sulfamiques en catalyse par transfert de phase." Paris 7, 1987. http://www.theses.fr/1987PA077183.

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13

Baltas, Michel. "Sulfinamides fonctionnalises inhibiteurs de la coniferylalcool deshydrogenase : synthese, etude de complexation par l'ion zn**(2+), mecanisme d'hydrolyse basique et aminolyse des sulfinamoyl acetates : schema d'inactivation enzymatique via un intermediaire sulfine." Toulouse 3, 1987. http://www.theses.fr/1987TOU30145.

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14

Jamal, Eddine Jamal. "Utilisation des nucléofuges chiraux dans la réaction de méthylation énantiosélective des énolates dérivés de la glycine." Rouen, 1986. http://www.theses.fr/1986ROUES028.

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On montre, qu'il est possible d'alkyler avec une bonne énantiosélectivité des énolates prochiraux au moyen d'agents électrophiles à nucléofuges chiraux dérivés du d(+)-glucose. La glycine est ainsi transformée en alanine avec excès énantiomère atteignant 75%. Mise en évidence du rôle des substituants R2 et R3 de l'imine dérivée de l'aminoacide. C'est ainsi qu'en encombrant la région syn de la base de Schiff, les excès énantiomères passent de 0 à 70%. De même des modifications de la structure de l'agent d'alkylation ont permis d'attribuer des centres d'asymétrie importants dans le phénomène de

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15

Francese, Catherine. "Reactions du bromotrifluoromethane en presence de zinc : trifluoromethylations dans les conditions de barbier." Paris 6, 1987. http://www.theses.fr/1987PA066381.

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16

Bardez, Élisabeth. "Relation entre structure et reactivite acido-basique de l'eau incluse dans les micelles inverses." Paris 6, 1987. http://www.theses.fr/1987PA066033.

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17

Jada, Amane. "Etude de la structure et de la dynamique de microemulsions eau dans huile." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13101.

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Etude des microemulsions qui sont des solutions transparentes constituees de fines gouttelettes d'eau dispersees dans une phase continue riche en huile. Determination par declin de fluorescence, diffusion de lumiere et conductivite electrique de l'influence de la nature de l'huile, de la temperature et de la structure du tensioactif sur la taille des gouttelettes et les processus d'echange de matiere entre gouttelettes

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18

Peliska, James A. "The use of sulfate esters to study enzyme catalyzed phosphoryl transfers. ; 2. The generation and buffer catalyzed ketonization of enolpyruvate in aqueous solutions." 1990. http://catalog.hathitrust.org/api/volumes/oclc/23277416.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1990.<br>Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

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19

Li, Jian-Min, and 李建旻. "Intramolecular Aziridination of Sulfamate Esters Catalyzed by Heterobimetallic Palladium-Cobalt Tetraacetate." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/61739488915787277180.

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碩士<br>中原大學<br>化學研究所<br>101<br>In this research, heterobimetallic palladium-cobalt acetate was used as catalyst for the intramolecular carbon - carbon π bond nitrene insertion reaction. Allyl and homoallyl alcohols were used as starting material to synthesis allyl sulfamate and homoallyl sulfamate. PdCo(OAc)4 was found capable of catalyzing the nitrene insertion and the desired bicyclic aziridine compounds were obtained. Five and seven-membered ring compounds were also observed via ring opening of the aziridines by acetate. During the optimization of the reaction conditions, PdCo(OAc)4 made fro

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20

Huang, Guan-Hao, and 黃冠豪. "Heterobimetallic Palladium-Cobalt Tetraacetate Catalyzed Intramolecular C-H Bond Nitrene Insertion of Sulfamate Esters." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/06164462706201986636.

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碩士<br>中原大學<br>化學研究所<br>101<br>This thesis is concerned with developing bimetallic palladium-cobalt tetraacetate as a catalyst for the nitrene insertion reactions in direct amination of the carbon-hydrogen bond. In this study, primary and secondary alcohols were used as the starting materials to synthesize sulfamate esters which precursors of intramolecular C-H nitrene insertion the reaction condition of target amination reaction and explored the substrate scope. We also discussed two possible reaction mechanisms, (1) nitrene insertion and (2) radical rebound. Results of KIE study have shown th

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21

Huang, Ching-Chun, and 黃靖鈞. "Chemoselectivity in Heterobimetallic Palladium-Cobalt Tetraacetate Catalyzed Intramolecular C-H Bond Nitrene Insertion of Sulfamate Esters." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/99042310562377945650.

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碩士<br>中原大學<br>化學研究所<br>101<br>The purpose of this research is to study the chemoselectivity of intramolecular nitrene insertion of sulfamate ester catalyzed by PdCo (OAc) 4 which was synthesized from Pd(OAc) 2 and Co(OAc) 2. In this study, sulfamate ester compounds 9-13 were used as reactants, for the PdCo(OAc)4 catalyzed amination reaction of C-H bond. The chemoselectivity was analyzed from the product distribution of resulting oxathiazinane compounds.

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22

LIN, JIN-QUE, and 林金雀. "Studies on the synthesis and properties of contain sulfone and benzimideazole groups of polyamide-esters, polyamides and polyimides." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/13420994010959252790.

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23

Wang, Yen-Hsiang, and 王彥翔. "Heterobimetallic Palladium－Cobalt Complex Catalyzed C-H Bond Nitrene Insertion of Sulfamate Esters, and Oxidation of Benzylic Acetal by（Diacetoxyiodo）benzene." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/h48f6x.

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碩士<br>中原大學<br>化學研究所<br>103<br>The presenting study can be divided into two parts. The first part of the study of sulfamate esters compound containing (six ring、five ring、four ring and Acetal group) as the starting materials in PdCo(OAc)4 catalyzed C - H amination reaction. Starting material with radical clock (cyclopropyl group) was alse tested in the C - H amination reaction to determine the possibility of radical mechanism. The second part is about using (diacetoxyiodo)benzene an oxidant for the oxidation of phenyl acetal compounds to form orthoesters.

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24

Liu, Dei-Cheng, and 劉得丞. "Synthesis and Structural Determination of Zinc and Titanium Complexes Supported by Sulfonate and Imino-Benzotriazole Phenoxide Ligand：Catalytic Studies for Ring-Opening Polymerization of Cyclic Esters." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/djn76p.

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碩士<br>中原大學<br>化學研究所<br>102<br>Four novel sulfonate phenol ligands, HBBTP(OS)-H (A), CH3BBTP(OS)-H (B), OMeBBTP(OS)-H (C) and CF3BBTP(OS)-H (D), have been prepared by the sulfonylation ) with one molar equiv of the corresponding 4-substituted benzenesulfonyl chloride in the presence of excess triethylamine. Zinc (Zn) complexes supported by sulfonate phenoxide ligands have been synthesized and characterized by microanalyses. The reaction of diethyl zinc (ZnEt2) with one equivalent amount of RBBTP(OS)-H (R=H, CH3, OMe and CF3) produces the monomeric zinc complex [HBBTP(OS)ZnEt] (A), [CH3BBTP(OS)Z

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25

Li, Da. "Transition metal-free desulfinative cross-coupling of 2-pyridyl sulfonates with organolithium reagents : mild access to 2-substituted pyridines." Thesis, 2021. http://hdl.handle.net/1866/25438.

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Le motif biaryl contenant la pyridine représente une structure omniprésente dans la chimie organique et médicinale. Ainsi, le développement de méthodes fiables de synthèse est continuellement désiré. Traditionnellement, les cycles azotés biarylés sont efficacement synthétisés par des réactions de couplage croisé catalytique. Cependant, la pyridine peut être difficilement fonctionnalisée en position C-2 compte tenu de sa déficience en électrons. Cette propriété limite son utilisation en tant que partenaire nucléophile dans les réactions de couplage croisé. Par exemple, dans le couplage de Suzuk

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26

Riahi, Abdol Majid [Verfasser]. "Synthesis of functionalized arenes based on (3+3) cyclizations of 1,3-bis(silyloxy)-1,3-butadienes with sulfone-, ester-, amino-, and nitro-substituted enones and antimicrobial activity of pyridyl enones / vorgelegt von Abdol Majid Riahi." 2009. http://d-nb.info/998565709/34.

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