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Dissertations / Theses on the topic 'Tartaric acid'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Xie, Wei. "Thermodynamic and structural studies of aqueous chelating agents and their metal complexes at various temperatures and pressures : diethylenetriaminepentaacetic acid (DTPA) and tartaric acid /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0030/MQ47491.pdf.

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2

Mhatre, Bharat Suresh. "Super-enantiospecific Autocatalytic Decomposition of Tartaric Acid and Aspartic Acid on Cu Surfaces." Research Showcase @ CMU, 2013. http://repository.cmu.edu/dissertations/232.

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Autocatalytic reaction mechanisms are observed in a range of important chemical processes including catalysis, radical-mediated explosions, and biosynthesis. Because of their complexity, the microscopic details of autocatalytic reaction mechanisms have been difficult to study on surfaces and heterogeneous catalysts. Autocatalytic decomposition reactions of tartaric acid (TA) enantiomers adsorbed on Cu(110) offer molecular-level insight into these processes, which until now, were largely a matter of speculation. The decomposition of TA/Cu(110) is initiated by a slow, irreversible process that f

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3

Basaran, Tolga Yener. "Ion Exchangers In The Recovery Of Tartaric Acid From Aqueous Solutions." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607367/index.pdf.

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Tartaric acid is a dicarboxylic acid naturally present in grapes, and has many application areas with its salts. It can be produced synthetically, manufactured as a by-product in wine industry, or can be recovered by electrodialysis and solvent extraction methods. Since, ion exchange is one of the oldest processing techniques for the recovery and purification of valuable materials, it can be applied to obtain this valuable organic acid. In this study it is aimed to investigate the effects of resin basicity, initial concentration, and initial pH of the solution on ion exchange equilibrium. The

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4

Bakka, Thomas Aleksander. "Synthesis and Mechanistic Studies of Optically Active Tartaric Acid Based Surfactants." Thesis, Norges Teknisk-Naturvitenskaplige Universitet, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-20995.

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Gaining knowledge of the isomerization mechanisms are of pivotal importancefor stereochemically pure synthesis. Optically pure tartaric acid basedsurfactants are seen as important precursors for optically active superstructures.From these superstructures, liposomes are known canditates for drugdelivery nanovessels in the human body.A number of optically pure reference compounds were synthesized and severalanalysis methods were outlined.A mechanistic route for formation of cyclic tartrimides in nonpolar solvents have beenproposed on the background of various mechanistic assessment techniques.

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5

Lopez, Martinez Marco Antonio. "Studies of tartaric acid modified nickel supported catalysts for enantioselective hydrogenation reactions." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1491/.

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This thesis investigates the catalytic properties of tartaric acid‐nickel supported catalysts, obtained from hydrotalcite‐like compound precursors, in the enantioselective hydrogenation of methyl acetoacetate to methyl 3‐hydroxybutyrate. Variables of reaction during modification such as pH and tartaric acid concentration, as well as Ni particle size above a minimum threshold of ca. 20 nm, proved not to have a major effect on enantioselectivity. However, the nature of the cations constituting the catalyst support was found to influence the enantioselectivity observed. Specifically, when iron or

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6

Hayes, Monty. "Chiral and racemic calix[6]arenes and their self-assembly /." View online, 2008. http://ecommons.txstate.edu/bchemtad/5.

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7

Wade, Charles. "Studies towards the total synthesis of isoavenaciolide and the development of the amino tartrate aldol reaction." Thesis, University of Sheffield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341816.

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8

Japu, Cristina. "Cyclic derivatives of D-glucose and tartaric acid as building blocks for renewable polyesters." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/284660.

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Three series of aromatic copolyesters derived from poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT) and poly(hexamethylene terephthalate) (PHT) have been synthesized by melt polycondensation in which the terephthalate and oxyalkylene units have been partially or totally replaced by monocyclic and bicyclic diacids and diols obtained by derivatization of renewable monomers such as tartaric acid and D-glucose respectively. Another series of aliphatic copolyesters derived from poly(butylene sebacate) has been prepared by both melt polycondensation and enzymatic polymerizatio

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9

Morello, Alessandro. "Influence of ph and temperature on metatartaric acid efficiency in white wine tartaric stabilization." Master's thesis, ISA/UL, 2012. http://hdl.handle.net/10400.5/8625.

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Mestrado Vinifera EuroMaster - Instituto Superior de Agronomia<br>The sensitivity of metatartaric acid (MA) to high temperatures is the main limit for its actual use in enology. For this reason MA is generally used only for ready-to-drink wines that are stored for few months in bottle. The objective of this work was to obtain more information about the use of MA in order to prevent tartaric salts precipitation in wine by monitoring its effectiveness along the time. Tartaric stability was followed in a white wine during a ten-week experiment. 10 g/Hl of MA was added to wines with different

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10

Guadagnin, Hellen Costerano. "Corrosion resistance study of AA2524 anodized in sulphuric-tartaric acid and sealed with hybrid coatings." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-20072017-152947/.

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Aluminium alloys are widely used in the aerospace industry due to their lightweight and high specific strength. However, these alloys are particularly sensitive to localized corrosion in chloride environments and need to be protected by a robust system. One of the protection methodologies consists in anodizing. The produced layer increases the corrosion resistance and also serves as anchoring site for organic coatings application. Chromium-based anodizing has been usually employed, nevertheless, as chromate compounds are toxic for health and the environment, chromium-based surface treatments w

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11

Lorenzo, Maria Ortega. "Complexities and dynamics of the enantioselective site in heterogeneous catalysis : tartaric acid and methylacetoacetate on Cu(110)." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366724.

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12

Coetzee, Zelmari. "Site and vintage response of malic and tartaric acid in Vitis vinifera L. cv’s Cabernet Sauvignon and Sauvignon blanc." Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85736.

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Thesis (MScAgric)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Acids are one of the major components that originate largely from the berry, that are found in wine, and that influence the sensory perception. The presence of organic acids in adequate concentrations in the grape berry, of which tartaric- and malic acid are the main organic acids present, is important as this determines the potential of a must to produce a good and stable wine. The effect of temperature on the organic acid content of the must is widely discussed with higher temperatures in general being associated wi

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13

Gouteyron, Antoine. "Nouveaux monomères biosourcés à haute rigidité à destination des revêtements polyesters." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10266.

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Les résines polyesters sont des composants présents dans une majorité des revêtements et matériaux utilisés aujourd'hui. Ils sont obtenus par polycondensation de polyols, polyacides et monoacides. Les réglementations évoluant (REACH) et le public étant de plus en plus sensible à l'origine et l'impact des produits qu'il consomme, la substitution des produits pétrosourcés vers des matières premières renouvelables semble évidente. De nouveaux polyesters, composés majoritairement de monomères biosourcés, ont donc été synthétisés. L'acide L-(+)-tartrique a été principalement étudié, ce monomère qua

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14

Wu, Ruizhi. "Enzymatic and chemical synthesis of polyesters and polycarbonates derived from L-tartaric acid and synthesis of polycaprolactones initiated by cavitands." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0002972.

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15

Jones, Lee. "An investigation into the effect of a chiral adsorbate on surface magnetism using spin-resolved electron spectroscopy : tartaric acid on Ni{110}." Thesis, University of Liverpool, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433770.

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16

Reinicker, Aaron D. "High Throughput Study of the Structure Sensitive Decomposition of Tartaric and Aspartic Acid on Surfaces Vicinal to Cu(111) and Cu(100)." Research Showcase @ CMU, 2015. http://repository.cmu.edu/dissertations/572.

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There are many reactions that are sensitive to the surface structure of a catalyst. In order to obtain a comprehensive understanding of structure sensitive surface chemistry we use Surface Structure Spread Single Crystals (S4Cs) that expose a continuous distribution of crystal planes across their surfaces. Those crystal planes that lack mirror symmetry contain terraces, monatomic steps, and kinks and can be described as chiral with an R or an S orientation. When coupled with spatially resolved surface analysis techniques, S4Cs can be used to study the effects of surface structure and chirality

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17

Kniel, Kalmia Elisabeth. "Evaluation of chemical treatments and ozone on the viability of Cryptosporidium parvum oocysts in fruit juices." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/27243.

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<i>Cryptosporidium parvum</i> is a protozoan parasite historically associated with waterborne and more recently foodborne outbreaks of diarrheal illness. Contamination of certain foods, such as unpasteurized apple cider, with infective oocysts may occur as oocysts are shed in the feces of common ruminants like cattle and deer that graze in and around orchards. Cryptosporidiosis can result in a severe illness for previously healthy individuals and a life-threatening illness in immunocompromised individuals. Disease occurs after the ingestion of small infective oocysts (4 to 5 mm in size). The r

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18

Eißmann, Diana. "Organische Linkermoleküle auf Basis natürlicher Hydroxycarbonsäuren zum Aufbau homochiraler poriger Festkörperstrukturen." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2011. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-77001.

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Das Ziel dieser Arbeit bestand in der Synthese neuartiger homochiraler Molekülstrukturen, welche nach Konzepten des Crystal Engineering über ein starres Grundgerüst sowie koordinationsfähige Haftgruppen verfügen sollten. Unter Verwendung von Wein- und Milchsäure, als Vertreter der natürlich vorkommenden, enantiomerenreinen α-Hydroxycarbonsäuren, konnten die entsprechenden Derivate mit aromatischen und/oder acetylenischen Spacerelementen hergestellt und umfassend charakterisiert werden. Die synthetisierten Wein- und Milchsäureverbindungen sowie die sich von den jeweiligen Weinsäureestern ableit

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19

Butch, Christopher J. "The role of glyoxylic acid in the chemistry of the origin of life." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54263.

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I present detailed mechanistic analysis on the chemistry of glyoxylate as it pertains to forming biologically relevant molecules on the Hadean Earth. Chemistry covered includes: 1) the dimerization of glyoxylate to form dihydroxyfumarate(DHF), a heretofore unknown reaction, important to substantiating Eschenmoser's glyoxylate scenario. 2) Formation of sugars from polymerization of glyoxylate. 3) Formation of tartrate and sugar acids from high pH reactions of DHF. 4) Formation of glycine polypeptides from glyoxylate by transamination and coupling promoted by hexamethylenetetramine. 5) Formation

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20

Owens, Samuel Britt. "Transition metal complexes of bis(phosphorus) donor ligands derived from multifunctional diols synthesis, isomerization, cation binding, and catalysis /." Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2008p/owens.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2008.<br>Additional advisors: Houston Byrd, Chris Lawson, Sadanandan Velu, Charles Watkins. Description based on contents viewed Feb. 9, 2009; title from PDF t.p. Includes bibliographical references.

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21

Jacquet, Antoine. "Capsules hélicoïdales d’oligoamides aromatiques : détecteurs moléculaires pour le dosage d’acides organiques du vin." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0921/document.

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Les foldamères – structures oligomériques artificielles adoptant une forme repliée définie – permettent la conception de récepteurs moléculaires de type capsule capables de reconnaitre sélectivement certains analytes pertinents du vin. En particulier, des récepteurs sélectifs et affins du fructose, de l’acide tartrique et de l’acide malique ont été identifiés au cours de ces dernières années. Le développement d’une méthodologie de synthèse sur support solide d’un récepteur moléculaire de l’acide gluconique sera abordé dans ce manuscrit. Cette thèse montre également comment certains de ces réce

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22

Simões, Madalena. "Estabilização tartárica em vinhos." Master's thesis, Universidade de Évora, 2014. http://hdl.handle.net/10174/13050.

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A instabilidade do vinho em relação ao ácido tartárico e seus sais é ainda um problema para os produtores de vinhos, sendo a estabilização tartárica dos mesmos, uma prática corrente em enologia. A eliminação de uma fração do ácido tartárico é geralmente conseguida pela sua precipitação pelo frio, com intervenção de catiões presentes no vinho, nomeadamente potássio (K) e cálcio (Ca). Existem no entanto outras alternativas, como por exemplo resinas de troca iónica que removem os catiões K e Ca, evitando a precipitação do ácido tartárico. Este estudo pretende contribuir para a compreensão do fenó

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23

Poot, Thirza. "Tuned sustainable anodic coatings for reduced ice adhesion." Thesis, Linköpings universitet, Molekylär ytfysik och nanovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158214.

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Aluminum alloys are widely used materials in the aircraft industry due to their high specific strength and durability. The natural corrosion resistance of aluminum can be improved through an electrochemical anodizing process. Due to recent restrictions in the use of chromic acid with toxic hexavalent chromium as electrolyte, the industry has shifted towards the use of the functional comparable tartaric sulfuric acid (TSA). TSA anodizing provides a porous alumina layer with good corrosion resistance, yet there is a desire to tune the process to fit other purposes. For instance, ice accretion to

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24

Duchêne, Eric. "Une exploration des possibilités génétiques pour l'adaptation de la vigne au changement climatique." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAJ059/document.

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Les effets du changement climatique ont d’ores et déjà été observés sur la vigne : avancement des stades de développement, augmentation des teneurs en alcool des vins, baisse excessive de leur acidité. Une des voies d’adaptation possible de la viticulture est la création de nouvelles variétés. J’ai caractérisé la variabilité phénotypique de 120 descendants de croisements entre Riesling (RI) et Gewurztraminer (GW) pour (1) les stades de développement, décrits à l’aide de sommes de températures (2) la capacité à accumuler des sucres dans les raisins (3) les paramètres de l’acidité des raisins. L

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25

SCHWARTZ, VERONIQUE. "Protection des cetones insaturees steroides en position 3 par des cetals tartriques." Nice, 1995. http://www.theses.fr/1995NICE4832.

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La preparation d'analogues structuraux de l'acetate de nomegestrol, comportant diverses modifications en position 17, a constitue un des objectifs de recherche des laboratoires theramex. Pour cela, nous avons donc ete conduits a etudier la protection de l'enchainement particulier 6-methyl-dienonique en serie 19-nor steroide, en vue d'aboutir a un intermediaire de synthese 17-cetonique. L'utilisation des cetals glycoliques classiques ne convenait pas a cause de la grande sensibilite a l'hydrolyse acide des composes prepares. Nous avons donc envisage un autre groupement protecteur: les cetals ta

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26

Meynaud, Solène. "Valorisation de l’acide tartrique biosourcé et de biopolymères filmogènes pour le biocontrôle des microorganismes phytopathogènes et glaçogènes." Electronic Thesis or Diss., Bordeaux, 2025. http://www.theses.fr/2025BORD0043.

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Les productions fruitières Européennes sont très touchées par des maladies provoquées par des bactéries, telles que Pseudomonas syringae ou Erwinia amylovora. De plus, certains gouvernements ont mis en place une restriction de l’usage des produits phytosanitaires. En France, cela s’est traduit par la mise en place du Plan Ecophyto. Ainsi, de nombreuses alternatives ont été recherchées pour remplacer les traitements phytosanitaires présentant le plus de risques toxicologiques. Cependant, un des enjeux majeurs pour l’utilisation de ces composés est la résistance à la pluie, pour garantir l’effic

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27

Thomson, C. C. "Rootstock and canopy density effects on grape berry composition : organic acid composition, potassium content and pH." Lincoln University, 2006. http://hdl.handle.net/10182/772.

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The influence of rootstock and canopy density on grape berry composition was investigated over the summer of 2003-2004 on a commercial vineyard at Waipara, North Canterbury. This experiment was designed to investigate the influence of rootstock and canopy density on the acid composition, potassium (K) content and final pH of harvested fruit (Pinot Noir AM 10/5 Lincoln Selection). The trial block consisted of eight rootstocks laid out to an 8 x 8 latin square, each plot consisting of five vines of the same rootstock. Two canopy treatments were overlaid the block (down whole rows, assigned rando

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28

Rosa, Inês Feitinha Severino da Silva e. "O uso do poliaspartato de potássio na estabilização tartárica de vinhos." Master's thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/26199.

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A instabilidade tartárica em vinhos brancos ainda é uma preocupação em enologia, existindo várias técnicas para prevenir este problema associado à precipitação dos sais do ácido tartárico. Para além da mais usual, através da utilização do frio, podem ser utilizados aditivos que inibem o processo de formação dos cristais responsáveis pela instabilidade. Com o presente estudo, pretende-se testar um novo aditivo estabilizante, recentemente autorizado, designado por poliaspartato de potássio, na inibição da precipitação dos cristais de ácido tartárico nos vinhos, e comparar a sua eficiência com a

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29

Lautrette, Guillaume. "Capsules hélicoïdales auto-organisées par repliement d’oligoamides aromatiques pour la reconnaissance moléculaire." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14850/document.

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La reconnaissance moléculaire constitue l’une des questions fondamentales les plus discutées dans le domaine de la chimie supramoléculaire. Cette thèse présente la conception, la synthèse et l’étude des propriétés de capsules hélicoïdales auto-organisées par repliement d’oligoamides aromatiques. Ces récepteurs sont constitués d’une chaîne oligomérique se repliant en hélice et comprenant une séquence d’unités codant pour des diamètres différents. Le repliement de l’oligomère donne naissance à une cavité pouvant accueillir des molécules invitées. La grande modularité des séquences, permettant un

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30

Cito, Antonia Maria das Graças Lopes. "Rotas sinteticas exploratorias a partir do acido L-(+)-tartarico e D-manitol." [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250182.

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Orientador : Eva Gonçalves Magalhães<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-19T03:12:47Z (GMT). No. of bitstreams: 1 Cito_AntoniaMariadasGracasLopes_D.pdf: 11816956 bytes, checksum: 7a6aeacceb8036c642ef2f0241838f60 (MD5) Previous issue date: 1994<br>Doutorado

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Alberton, Elga Heloisa. "Influência de chalconas análogas, xantonas e monossacarídeos na glicemia em modelo experimental animal." Florianópolis, SC, 2007. http://repositorio.ufsc.br/xmlui/handle/123456789/89857.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Farmácia.<br>Made available in DSpace on 2012-10-23T03:26:54Z (GMT). No. of bitstreams: 1 240185.pdf: 599701 bytes, checksum: 17a90f318dde261b9bdb1e7c4e1b2e3a (MD5)<br>O objetivo deste trabalho foi estudar o efeito de chalconas análogas (derivadas do 3,4-metilenodióxi-benzaldeído, 2-naftaldeído ou xantoxilina), monossacarídeos (ácido glicônico e tartárico), extrato bruto etanólico da Polygala paniculata, fração acetato de etila (AcEt) da Polygala cyparissias (que contém xa

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DeBolt, Seth. "Tartaric acid biosynthesis in plants." 2006. http://hdl.handle.net/2440/57333.

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Title page, table of contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library.<br>To summarise, research presented in this thesis extends the understanding of grape berry metabolism by characterising dual metabolic fates for AA. Moreover, the success of combining transcriptional and metabolic profiling towards targeting a specific pathway in non-model plants was demonstrated. The key result of this research was the discovery of L-idonate dehydrogenase, which acts to oxidise L-idonate in the tartaric acid synthetic pathway. Furthermore a

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Lin, Fu-Ming, and 林福明. "Preparation and application of chitosan-oxalic acid and chitosan-tartaric acid gel beads." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/45142740967566788041.

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碩士<br>明志科技大學<br>化學工程研究所<br>99<br>Chitosan-oxalate (CO) and chitosan-tartrate (CT) adsorbents, prepared by freeze-dried and oven-dried, were used for treatment of Cu(II) ion from aqueous solution. The effects of the initial pH value of the solution, contact time, temperature and the initial Cu(II) ion concentration on the adsorption of Cu(II) ion were investigated. The characterization of CO and CT adsorbents were investigated by IR, XRD and TGA. The maximum adsorption amount was observed at pH 5 for both CO and CT adsorbents. The adsorption isotherms were better fitted by the Langmuir equation

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34

Usui, Fusao. "Interaction of sodium bicarbonate with tartaric acid under compressed condition." 1985. http://catalog.hathitrust.org/api/volumes/oclc/12728166.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1985.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 110-112).

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35

Ranzenigo, Anna. "Synthesis of hydroxylated indolizidines and diamino suberic acid derivatives: use of tartaric acid and other approaches." Doctoral thesis, 2022. http://hdl.handle.net/2158/1286510.

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Tartaric acid enantiomers are very versatile and useful chiral pool compounds. Part of this research project was devoted to the study of these molecules as starting materials for the synthesis of biologically active natural products and analogs such as iminosugars and bis-a-amino acids. Bis-a-amino acids are a class of structurally interesting compounds. Among them, diaminosuberic acid is an appealing stable mimic of cystine. Object of this work was to synthetize different derivatives of diamino suberic acid using various strategies, including the tartaric acid approach, in order to get new in

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Dhamaniya, Sunil. "Synthesis and characterization of polyesters based on tartaric acid deriv atives." Thesis, 2012. http://localhost:8080/xmlui/handle/12345678/3153.

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Chandrakumar, A. "Synthesis And Applications Of 1,4-Diketones And Y-Oxobutyramides Derived From Tartaric Acid." Thesis, 2008. https://etd.iisc.ac.in/handle/2005/839.

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The thesis entitled “Synthesis and applications of 1,4-diketones and γ-oxobutyramides derived from tartaric acid” is divided into two chapters. Chapter 1: Synthesis of TADDOL analogues by nucleophilic addition reactions and their application to the synthesis of α-methoxy arylacetic acid derivatives Synthesis of various TADDOL analogues by the addition of nucleophiles to 1,4-diketones derived from L-(+)-tartaric acid is presented in this chapter. It is found that the reduction of 1,4-Diketones 1a-d with K-Selectride pre-complexed with 18-crown-6 which is the optimized condition to attain b

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Chandrakumar, A. "Synthesis And Applications Of 1,4-Diketones And Y-Oxobutyramides Derived From Tartaric Acid." Thesis, 2008. http://hdl.handle.net/2005/839.

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The thesis entitled “Synthesis and applications of 1,4-diketones and γ-oxobutyramides derived from tartaric acid” is divided into two chapters. Chapter 1: Synthesis of TADDOL analogues by nucleophilic addition reactions and their application to the synthesis of α-methoxy arylacetic acid derivatives Synthesis of various TADDOL analogues by the addition of nucleophiles to 1,4-diketones derived from L-(+)-tartaric acid is presented in this chapter. It is found that the reduction of 1,4-Diketones 1a-d with K-Selectride pre-complexed with 18-crown-6 which is the optimized condition to attain bet

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Chuang, Ya-ling, and 莊雅玲. "Electrochemical polymerization of aniline on Au(111) and Au(100) in camphor-sulfonic acid and tartaric acid." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/50695091619108506870.

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碩士<br>國立中央大學<br>化學研究所<br>99<br>In situ scanning tunneling microscopy (STM) and cyclic voltammetry (CV) have been used to explore the adsorption and electropolymerization of aniline on ordered Au(111) and Au(100) electrodes in 0.1 M organic acid of D-(+)- or L-(-)-camphor-sulphonic acid or D-(-)- and L-(+)-tartaric acid (TA). Molecular resolution STM imaging revealed aniline molecules were arranged differently in D-(+)- and L-(-)-camphor-sulphonic acid. The coverages and structures of aniline and coadsorbed anions could vary with the potential of gold electrodes. D-(+)- and L-(-)-camphor-sulpho

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"Studies towards metal-complex catalyzed epoxidation." 2013. http://library.cuhk.edu.hk/record=b5884494.

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Leung, Chi Yin.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2013.<br>Includes bibliographical references (leaves 81-89).<br>Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.<br>Abstracts also in Chinese.

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Santagata, Nancy Marie. "Stereochemical effects on the organizational and electronic structure of the tartaric acid/Ag(111) system." 2009. http://www.lib.ncsu.edu/theses/available/etd-05272009-113006/unrestricted/etd.pdf.

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Bali, Amit K. "Alkynones Derived from Tartaric Acid : Efficient Building Blocks for the Synthesis of Macrolactone Natural Products." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/3790.

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The thesis describes the synthesis and application of various alkynones derived from the bis-Weinreb amide of tartaric acid in the total synthesis of macrolactone natural products. The thesis is divided into three sections. First section of the thesis describes the optimization and generalization of the procedure for the addition of alkynyl Grignard / lithium reagents to the bis-Weinreb amide derived from tartaric acid to yield the mono alkynyl ketones was developed. Application of the formed γ-oxo amides was demonstrated in the synthesis of polyols with varied substitutions particularly the

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Bali, Amit K. "Alkynones Derived from Tartaric Acid : Efficient Building Blocks for the Synthesis of Macrolactone Natural Products." Thesis, 2017. http://etd.iisc.ernet.in/2005/3790.

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The thesis describes the synthesis and application of various alkynones derived from the bis-Weinreb amide of tartaric acid in the total synthesis of macrolactone natural products. The thesis is divided into three sections. First section of the thesis describes the optimization and generalization of the procedure for the addition of alkynyl Grignard / lithium reagents to the bis-Weinreb amide derived from tartaric acid to yield the mono alkynyl ketones was developed. Application of the formed γ-oxo amides was demonstrated in the synthesis of polyols with varied substitutions particularly the

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Melino, Vanessa Jane. "Ascorbate metabolism in grape berries during development." Thesis, 2010. http://hdl.handle.net/2440/68714.

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Ascorbate (Asc, Vitamin C) is a ubiquitous and abundant antioxidant in plants. The biological role of Asc is composed of the following three functions: as an antioxidant (radical scavenger), an enzyme cofactor and a donor/acceptor in electron transport across membranes. This present research was focussed on the additional, less comprehensively investigated function of Asc as a precursor of tartaric acid (TA) and oxalic acid (OA) in certain species. Although the in planta function of TA is unclear, it is well known as the dominant organic acid in grape (Vitis vinifera) berries. TA is therefore

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Metri, Prashant K. "β-Keto Phoshonates from Tartaric Acid in the Total Synthesis of (+)-4-epi-gabosine A, (+)-dihydrokawain-5-ol, (-)-bengamide E and indetification of MPK-09 : A Small Molecule that Restores the Wild type Function of Mutant p53". Thesis, 2014. http://etd.iisc.ac.in/handle/2005/4101.

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The thesis entitled “-Keto phosphonates from tartaric acid in the total synthesis of ()-4-epi-gabosine A, ()-dihydrokawain-5-ol, ()-bengamide E and Identification of MPK-09: A small molecule that restores the wild type function of mutant p53.’’ demonstrates the utility of -keto phosphonate derived from tartaric acid as a building block in the synthesis of bioactive natural products small molecules of therapeutic importance. The thesis is divided into three sections. Section I of the thesis deals with the utility of new -keto phosphonate 1, derived by desymmetrization of bis-Weinreb am

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Ambardekar, Amogh. "Modifications in visco-elasticity of gluten diacteyl tartaric acid ester of monoglyceride (DATEM), ascorbic acid, urea and dithiothreitol and its effects on mixing and baking properties in commercial wheat flours." 2009. http://digital.library.okstate.edu/etd/Ambardekar_okstate_0664D_10538.pdf.

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Stern, Ben, Carl P. Heron, T. Tellefsen, and M. Serpico. "New investigations into the Uluburun resin cargo." 2008. http://hdl.handle.net/10454/4797.

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Resin found within Canaanite amphorae from the Late Bronze Age shipwreck discovered off the coast of southwest Turkey at Uluburun has previously been identified as Pistacia sp. Although evidence from Egypt suggests that this resin was in high demand and typically transported in such amphorae, it has also been proposed that the amphorae contained wine, with the resin used to seal the interior surfaces and to flavour and/or preserve the wine. To attempt to resolve this question, we have analysed five samples of pistacia resin found in amphorae from the shipwreck using a range of analytical techn

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Buckler, Joshua Neil Victor Timshell. "Stereoselective Syntheses of Certain Natural Products and their Analogues from Chiral-pool and Enzymatically-derived Building Blocks." Phd thesis, 2017. http://hdl.handle.net/1885/146534.

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This thesis is comprised of six scientific articles and is preceded by an overview that contextualises all of this published/submitted work. The first section of this thesis is comprised of Publications 1-3 and is concerned with the synthesis of novel, oxygenated analogues of the natural and non-natural enantiomeric forms of the Amaryllidaceae alkaloid galanthamine, a reversible and selective acetylcholine esterase (AChE) inhibitor that is used clinically in the treatment of Alzheimer’s disease. Specifically, Publication 1 is an invited

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Singh, Piyal. "Stereoselective synthesis of functionalized allenes, total synthesis of monticolides A and B, and towards the total synthesis of tulearin C." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5551.

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The thesis, entitled as “Stereoselective synthesis of functionalized allenes, Total synthesis of Monticolides A and B, and towards the total synthesis of Tulearin C” is divided into two chapters. Section A chapter-1 deals with the stereoselective synthesis of functionalized allenes from tartaric acid. Desymmetrization of the C-2 symmetric bis-dimethylamide derived from tartaric acid by addition of alkynyl Grignard / lithium reagents to yield the mono alkynyl ketones was achieved in good yield. Stereoselective Luche reduction of the mono alkynyl ketones furnished the corresponding alcohols whi

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Sá, Maria Manuela Gonçalves de. "Estratégias enológicas na gestão do processo de vinificação e estabilização." Master's thesis, 2020. http://hdl.handle.net/1822/72436.

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Dissertação de mestrado em Tecnologia e Ciência Alimentar<br>O presente trabalho foi elaborado no âmbito da dissertação de Mestrado em Tecnologia e Ciência Alimentar nas Caves Campelo S.A., e teve como principal objetivo acompanhar o processo completo de vinificação em vinhos verdes, nomeadamente das castas Alvarinho, Loureiro e Arinto. Pretendeu-se avaliar diferentes métodos de filtração e diferentes estabilizantes tartáricos de modo a obter os resultados mais benéficos para a empresa, efetuando-se ensaios de filtração e de estabilização tartárica. No primeiro caso, analisaram-se os parâm

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