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Dissertations / Theses on the topic 'Benzoic acid derivatives'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Cavalcanti, Élida Batista Vieira Sousa. "Estudo fitoquímico e biológico dos frutos e raízes de Piper caldense C. DC. (Piperaceae)." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/8057.

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Submitted by Clebson Anjos (clebson.leandro54@gmail.com) on 2016-03-29T19:16:04Z No. of bitstreams: 1 arquivototal.pdf: 5534324 bytes, checksum: 898113655c311035d0ba3661db9223c8 (MD5)<br>Made available in DSpace on 2016-03-29T19:16:04Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 5534324 bytes, checksum: 898113655c311035d0ba3661db9223c8 (MD5) Previous issue date: 2014-02-27<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>The genus Piper L. is the largest one among the Piperaceae. Containing at least 1000 species, they are located mainly on the neotr

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Silva, Gracielle Angeline Tavares da. "Estudo fitoquímico das folhas e frutos de Piper caldense C.DC. (Piperaceae)." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/6799.

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Made available in DSpace on 2015-05-14T12:59:56Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 8420094 bytes, checksum: e38d9fce0fc67703d2f3e878474b7c32 (MD5) Previous issue date: 2013-02-27<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The Piper L. genus is the largest one among the Piperaceae. Containing at least 1000 species, they are located mainly on the neotropical region of Earth and it draws our attention due to its medical, economical, chemical and cultural properties, such as anti-inflamatory, antibacterial and fungicide actions. Piper genus species ha

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Salim, Sachithananthan Sharlinda Binti. "Studies of local structure and nucleation in benzoic acid derivative systems." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18780/.

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Nucleation of organic crystals from solution starts from self-assembly of molecules. New and advanced techniques are continuously explored to have an insight into understanding the nucleation mechanism and the local structure in both solution and resulting crystalline forms. In this thesis, multiple spectroscopic techniques were applied - infrared (IR), Raman, near-edge X-ray absorption fine structure (NEXAFS) and X-ray photoelectron (XPS) - that gave an extensive overview of local interactions between molecules. The nucleation rates were calculated based on probability distributions of induct

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4

Eyrich, Berit. "Untersuchungen zur Biotransformation neuer substituierter Piperidylbenzilate." Doctoral thesis, [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=964723913.

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5

Smolinka, Kai. "Biomimetische Studien an Arzneistoffen mit Benzilsäure- oder Estrogenstruktur." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2001. http://dx.doi.org/10.18452/14638.

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In der vorliegenden Arbeit wurden chemische Modellsysteme zur Erarbeitung möglicher Metabolisierungswege für neue, als potentielle Antiparkinsonmittel entwickelte Benzilsäurederivate angewendet und die Anwendbarkeit solcher Systeme zur Modellierung der Biotransformation von Estrogenderivaten getestet. Die biomimetischen Umsetzungen wurden im wässrigen und nichtwässrigen Milieu mit Mangan- und Eisenporphyrinen als Katalysatoren, mit einer Stickstoffbase, in der Regel Imidazol, als Co-Katalysator und mit Wasserstoffperoxid, Iodosylbenzen oder tert-Butylhydroperoxid als Sauerstoffquelle durchge

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6

Selent, Jana. "Darstellung und Charakterisierung neuartiger, chiraler, basischer Benzilsäureester mit anticholinerger Wirkung." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2005. http://dx.doi.org/10.18452/15166.

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Basische Benzilsäureester stellen mit ihrer ausgeprägten anticholinergen Wirksamkeit potenzielle Arzneistoffe zur Behandlung der Harninkontinenz, der Ulkuserkrankung und des Morbus Parkinson dar. Von besonderem Interesse sind Benzilsäurevertreter, die neben anticholinergen auch dopaminerge Effekte aufweisen. Wegen ihrer dualistischen Wirkung könnten sie eine neue Klasse von Antiparkinsonica begründen. Aufgrund der vielfältigen Funktionen von Muscarinrezeptoren treten bei wenig selektiv wirksamen Arzneistoffen atropinartige Nebenwirkungen auf. Mit der Entwicklung von Verbindungen, die eine erhö

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7

Shu-Wei, Hsu, and 許書維. "Synthesis and Biological Activities of 2-Substituted Benzyloxy Benzoic Acid Derivatives." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/48608478932630792656.

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碩士<br>中國醫藥學院<br>藥物化學研究所<br>91<br>In order to obtain novel compounds with potent anti-inflammatory, anti-allergic and anti-diarrhea activities, 2-benzyloxybenzaldehyde was used as the lead compound, and 2-substituted benzyloxy benzoic acid derivatives were synthesized. 2-substituted benzyloxy benzonitriles 17-25, 2-substituted benzyloxy 2-methylbenzenes 26-29, 2-substituted benzyloxy phenyl methanols 30-33, 2-substituted benzyloxy benzoates 34-41, 2-substituted benzyloxy benzamides 42-44 and 2-substituted benzylamino benzoates 45-55 were synthesized by the benzylation with potassium

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8

Lin, Shih-Chieh, and 林仕杰. "Synthesis and study on self-assembled nanostructures of bisphenol F derivatives base on 4-(alkoxy)benzoic acid and 3,4-bis(alkoxy)benzoic acid." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/83938674229993765662.

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碩士<br>國立高雄師範大學<br>化學系<br>100<br>A series of bis(4-n-alkyloxy) monobenzoylglyceride) bisphenol F were synthesized. Further reaction by heating in neat condition induces a 3,2-acyl migration which determined by 1-D and 2-D NMR spectrum.The ratio of the structural isomer is able to modulate the fluorescence and morphology of the blended system, and we dementrated that the phenomenon is due to formation of the different type of the intermolecular hydrogen bonding species in each series. In the experimental results, all the compounds show layer structure in solid at low temperature and Pm3n liquid

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9

Chin-Wen, Wang, and 王志文. "Synthesis of 2-(benzyloxy)benzoic acid derivatives as the inhibitor of ganglioside GM1 receptor." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/38257738085262709567.

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碩士<br>中國醫藥大學<br>藥物化學研究所<br>93<br>Structural biology studies on heat-labile enterotoxin (LT) from enterotoxigenic Escherichia coli. and the closely related cholera toxin (CT), shed light on the action mechanism of toxin at molecular and atomic levels. The B pentamer protein of the toxins recognized the receptor ganglioside GM1 presented on the gastrointestinal tract of human host and triggers endocytosis . The enzymatic A1 fragment of the toxin enters the cytosol it modifies the alpha subunit of stimulatory G protein (Gsα) and locks the G protein in its GTP-bound form, which continually stimula

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10

Lu, Hsiu-Yu, and 呂秀玉. "Reduction Reactions of Benzoic Acid and Zinc Porphyrin Derivatives in Tetrahydrofuran: An Electrochemical Study." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/77264628226750664161.

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碩士<br>國立暨南國際大學<br>應用化學系<br>100<br>In this thesis, we study reduction reactions of benzoic acid and zinc porphyrin derivatives in tetrahydrofuran. By adding H2O in tetrahydrofuran, we observed positive shift of the reduction potentials. In addition, we studied the influence of the long alkyl chains and electron-donating or withdrawing substituent on the reduction potentials of the carboxylic acid. As for the potentiostatic coulometry, we studied acid reductions by fixing the potentials upon electrolysis. However, we found no evidence of continuous hydrogen generation. The UV-visible absorption

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11

Chang, Shu-Yin, and 鄭舒尹. "Conductometric Studies of Acidic Properties of Derivatives of Benzoic Acid in Mixed Amphiprotic Solvents." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/59239732126572624918.

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碩士<br>淡江大學<br>化學學系<br>81<br>The major works of this research is to study the affect of dielectric constant, autoprotolysis constant, and other physical or chemical constants of mixed amphiprotic solvents on the dissociation of derivatives of benzoic acid. The PKa values was estimated by conductometric method. Personal computer which was connected with conductometer was used not only for recording the data in measurements but also for caculating the results of experiment. The mixtures of wat

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12

Lung, Chin-Chang, and 龍志漳. "The synthesis and property of “hockey stick” shaped mesogens:ester derivatives of 3-alkyloxy benzoic acid." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/12217982831063217526.

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碩士<br>淡江大學<br>化學學系<br>92<br>A rigid core consisting of four phenyl rings connected by three ester functional groups at the para-positions has been used for making mesogenic derivatives. Typical calamitic mesogen with wide mesophase range is obtained when the flexible alkyloxy chains are attached at the para-positions of the ending rings. A hockey stick, or bent, shaped molecule is obtained when one of the alkyloxy chains is connected at the meta-position, Cn-m-Cm, and results in formation of anticlinic Smectic C (SmCA) in addition to SmC, SmA and N phases. The mesophase-molecu

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13

Wu, Hui-ju, and 吳惠如. "Cytotoxic Screening of Certain 4-(3,4,5-Trimethoxyphenoxy) Benzoic Acid Derivatives and Proteomic Study in A549 Lung Cancer Cells." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/9q434u.

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碩士<br>嘉南藥理科技大學<br>藥物科技研究所<br>99<br>Lung cancer is the leading cause of cancer deaths in worldwide. The current treatment with anticancer drugs can not completely cure the lung cancer in the mid and late stages of clinical trials. In this study, it was purposed to discover new anticancer compounds which have high cytotoxic activity against lung cancer cells and to study the mechanism why the anticancer compounds affect cancer cell death in the protein expression level. Six new synthesized compounds of 4-(3,4,5-trimethoxyphenoxy)benzoic acid derivatives, DA-H, DA-Et, DA-Me, DA-Pr, DA-Bu and DA-P

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14

Lai, Tzu-Yu, and 賴姿羽. "Phase Behaviors and Structures of Supramolecules Formed by 4-Vinylpyridine-Based Polymers and Fan-Like Benzoic Acid Derivatives." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/75958931576182382931.

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碩士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>102<br>In this work, we investigated the supramolecular complexes of fan-like small molecules and 4-vinylpridine based polymers via hydrogen bonding interactions. The fan-like molecules are the carboxylic acid derivatives with different number of hexadecyl tails, including 3,5-bis(hexadecyloxyl)benzoic acid (BA2) and 3,4,5-tris(hexadecyloxyl)-benzoic acid (BA3). We firstly used FTIR to investigate the degree of small molecules associated onto pyridine groups in the complexes of BA and homopolymer poly(4-vinylpyridine)(P4VP). It is interesting to find that for P4

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15

Chang, Che-Cheng, and 張哲誠. "Synthesis and Properties of 3- and 4- Hydroxy Benzoic Acids Derivatives : Unsymmetrical Liquid Crystals." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/59833536972029798454.

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碩士<br>淡江大學<br>化學學系碩士班<br>94<br>Synthesis and Properties of 3- and 4- Hydroxy Benzoic Acids Derivatives : Unsymmetrical Liquid Crystals Total Page:93 Name of Institute: Graduate School of Chemistry Tamkang University Graduate Date: July, 2006 Degree Conferred: Master Name of Student: Che-Cheng Chang Advisor: Dr. Liang- Jye Yu Abstract: It can divide into 2 parts in this research. One is bent-shape liquid crystals, which are derivatives from 3-Hydroxy Benzoic Acid. Another is chiral rod-like liq

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16

Wan-Yin, Cheng, and 鄭琬尹. "Synthesis and study of bisphenol A derivaties and aliphatic ammonium salts base on 3, 4, 5-tris(alkoxyl)benzoic acid." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/76599795457968068126.

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碩士<br>高雄師範大學<br>化學系<br>97<br>Two series of thermotropic compounds with 3,4,5-tris(alkoxyl)benzyl group as the terminal unit were prepared and their thermal and liquid crystal properties were examined by powder X-ray diffractometer, differential scanning calorimeter and on the hot-stage of a cross-polarizing microscope. Compounds of series I, [Cn-R3OPhCOOHSR3](n = 14, 16, 18), [Cn-R3OPhCOOH-SR350] (n = 18) and [Cn-R3OPhCOOH-SR500] (n = 14, 16), containning bisphenol A functional group moiety as the central spacer, including SR3, SR350, and SR500, formed symmetrical molecular structures,. The co

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17

Metzger, Albrecht [Verfasser]. "Preparation and applications of benzylic zinc chlorides : lewis-acid promoted additions of organomagnesium and organozinc reagents to carbonyl derivatives ; transition metal-catalyzed cross-coupling reactions with methylthio-substituted N-heterocycles / von Albrecht Metzger." 2010. http://d-nb.info/1003615341/34.

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