Relevant bibliographies by topics / Chiral Carboxylic Acid

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Chiral Carboxylic Acid'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Chiral Carboxylic Acid"

1

Min, Chang, and Daniel Seidel. "Asymmetric Brønsted acid catalysis with chiral carboxylic acids." Chemical Society Reviews 46, no. 19 (2017): 5889–902. http://dx.doi.org/10.1039/c6cs00239k.

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Lemmerer, Andreas, Nikoletta B. Báthori, and Susan A. Bourne. "Chiral carboxylic acids and their effects on melting-point behaviour in co-crystals with isonicotinamide." Acta Crystallographica Section B Structural Science 64, no. 6 (2008): 780–90. http://dx.doi.org/10.1107/s0108768108034526.

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The crystal structures of co-crystals of two systems of chiral carboxylic acids, optically active and racemic 2-phenylpropionic acid and 2-phenylbutyric acid, with isonicotinamide are reported to investigate the effects of the chirality of the chiral carboxylic acids on the melting point of the co-crystal complexes. It was found that the racemic co-crystal has a higher melting point than the optically active co-crystal, which correlates with the denser packing arrangement inherent in centrosymmetric space groups.
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Moloney, Mark G., Diana R. Paul, Russell M. Thompson, and Emma Wright. "Chiral carboxylic acid ligands derived from camphoric acid." Tetrahedron: Asymmetry 7, no. 9 (1996): 2551–62. http://dx.doi.org/10.1016/0957-4166(96)00328-x.

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Nagatomo, Nao, Hisashi Oishi, Yutaka Kuwahara, et al. "Enantioselective Self-Assembled Nanofibrillar Network with Glutamide-Based Organogelator." Nanomaterials 11, no. 6 (2021): 1376. http://dx.doi.org/10.3390/nano11061376.

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A chiral molecular gelation system, as a chiral host, was used to effectively realize enantioselectivity using the simple carboxylic acid functional group. For this purpose, an L-glutamic-acid-based lipidic amphiphile (G-CA) with a carboxylic head group was selected and its responsiveness to cationic guest molecules was investigated. The dispersion morphology of G-CA in its solution state was examined by confocal and transmission electron microscopies, while interactions between the G-CA, as the host system, and guest molecules were evaluated by UV-visible, circular dichroism, and fluorescence
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Kühl, Olaf, Stephan Millinghaus, and Philipp Wehage. "Functionalised, chiral imidazolium compounds from proteinogenic amino acids." Open Chemistry 8, no. 6 (2010): 1223–26. http://dx.doi.org/10.2478/s11532-010-0097-9.

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Li, Bao Hui. "Chiral Separation of Non-Natural Amide Amino Acid by Capillary Electrophoresis with CD Derivations as Chiral Selective Material." Advanced Materials Research 554-556 (July 2012): 824–27. http://dx.doi.org/10.4028/www.scientific.net/amr.554-556.824.

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A capillary electrophoresis (CE) method for the separation of four kinds of enantiomers of non-natural carboxylic amino acid was built while hydroxypropyl-β- cyclodextrin (HP-β-CD) derivations as chiral selective material. Several different β-CD derivatives were tested for the chiral separation of non-natural carboxylic amino acid, and it was proved that HP-β-CD could show better chiral selectivity. The separation of enantiomers of amino acid was obtained by CE in a 50-μm i.d.×60 cm (effective length 45 cm) fused-silica capillary at 18 kV voltage, while 10 mM phosphate acted as running buffer
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Li, Bao Hui, and Bao Juan Tian. "Chiral Separation of Non-Natural Carboxylic Amino Acid by Capillary Electrophoresis with CD Derivations as Chiral Selective Material." Applied Mechanics and Materials 130-134 (October 2011): 4126–29. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.4126.

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A capillary electrophoresis (CE) method for the separation of four kinds of enantiomers of non-natural carboxylic amino acid was built while hydroxypropyl-β-cyclodextrin (HP-β-CD) derivations as chiral selective material. Several different β-CD derivatives were tested for the chiral separation of non-natural carboxylic amino acid, and it was proved that HP-β-CD could show better chiral selectivity. The separation of enantiomers of amino acid was obtained by CE in a 50-μm i.d.×60 cm (effective length 45 cm) fused-silica capillary at 18 kV voltage, while 10 mM phosphate acted as running buffer a
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Maeda, Hajime, Masayuki Iida, Daisuke Ogawa, and Kazuhiko Mizuno. "Enantioselective Protonation of Radical Anion Intermediates in Photoallylation and Photoreduction Reactions of 3,3-Diaryl-1,1-dicyano-2-methylprop-1-ene with Allyltrimethylsilane." Molecules 24, no. 14 (2019): 2677. http://dx.doi.org/10.3390/molecules24142677.

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Photoreactions of acetonitrile solutions of 3,3-diaryl-1,1-dicyano-2-methylprop-1-enes (1a–c) with allyltrimethylsilane (2) in the presence of phenanthrene as a photoredox catalyst and acetic acid as a proton source formed photoallylation (3) and photoreduction (4) products via photoinduced electron transfer pathways. When (S)-mandelic acid was used as the proton source, the reactions proceeded with 3.4 and 4.8 %ee for formation of 3 and 4, respectively. The results of studies of the effect of aryl ring substituents and several chiral carboxylic acids suggested that the enantioselectivities of
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Duke, CC, and RJ Wells. "Investigation of Readily Available Chiral Compounds for Preparative Scale Resolutions." Australian Journal of Chemistry 40, no. 10 (1987): 1641. http://dx.doi.org/10.1071/ch9871641.

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Diastereoisomeric esters were formed by reaction of racemic carboxylic acids with the readily available hydroxy lactone derivatives, 2,3-O-isopropylidene-D(+)-ribono-l,4-lactone, D(-)-2- hydroxy-3,3-dimethylbutyro-1,4-lactone (D(-)-pantolactone) and 1,2-O-isopropylidene-(+)-α-D-glucofuranurono-6,3-lactone. In all cases separation of the diastereoisomeric esters was achieved by crystallization and/or chromatography. Purity of the diastereoisomers could be determined by h.p.l.c. or by 1H n.m.r. Hydrolysis under mild basic conditions followed by treatment with acid gave optically pure carboxylic
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Balaji, Pandur Venkatesan, and Srinivasan Chandrasekaran. "Geminal Difunctionalization of Vinylarenes: Concise Synthesis of 1,3-Dioxolan-4-ones." Synlett 30, no. 20 (2019): 2263–67. http://dx.doi.org/10.1055/s-0039-1690250.

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We report a straightforward method for the synthesis of five-membered 1,3-dioxolan-4-ones by an unprecedented oxidative alkene geminal difunctionalization strategy using α-hydroxy carboxylic acids. Under the geminal oxidative addition conditions, various substituted α-hydroxy carboxylic acids and styrenes containing a variety of substituents, including β-substituted styrenes, were effectively coupled regioselectively (anti-Markovnikov) with an isobutyl-substituted chiral α-hydroxy carboxylic acid, providing an annulation with excellent dia­­stereoselectivity. An aryl migration in the semipinac
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Dissertations / Theses on the topic "Chiral Carboxylic Acid"

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Wilding, Matthew Alexander. "Redesigning racemases : engineering novel biocatalysts for chiral carboxylic acid production." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/redesigning-racemases-engineering-novel-biocatalysts-for-chiral-carboxylic-acid-production(b9c932cf-49db-46a7-856d-b316569b460c).html.

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As the demand for single enantiomer compounds continues to increase so must the supply, and biocatalysts are increasingly being used because of their superior stereo-, regio-, and enantioselectivity over alternative methods. Chiral carboxylic acids are vital components of a wide range of drugs and pharmaceuticals, and a number of methods for their production are in use today. The work that follows details investigations towards novel biocatalysts for the production of chiral carboxylic acids. Firstly, the development of an arylmalonate decarboxylase (AMDase) from Bordetella bronchiseptica is d
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Gollins, David William. "The use of 2-azetidinone-4-carboxylic acid as a chiral synthon." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386889.

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Komba, Christele Lydia. "Chiral discrimination of dicarboxylic acids with Cinchona alkaloids." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2571.

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Thesis (MTech (Chemistry))--Cape Peninsula University of Technology, 2017.<br>This thesis is aimed at the investigation of the chiral discrimination process during diastereomeric salt formation, when selected cinchona alkaloids are exposed to racemic mixtures of tartaric acid derivatives. This research is based on the use of (+)‐cinchonine, (‐)‐cinchonidine, (‐)‐quinidine and (+)‐ quinine, which served as chiral bases, in order to resolve racemates of O,O'‐dibenzoyl‐tartaric acid (DBTA) and O,O'‐di‐p‐toluoyl‐tartaric acid (DTTA). Cinchona alkaloids were selected because of their abilities
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Chaumette, Jean-Louis. "Synthèse asymétrique d'acides α-halogénés par halogénation diastéréosélective d'acétals de cétènes silylés ; addition asymétrique d'alcools sur des cétènes α-halogénés". Rouen, 1996. http://www.theses.fr/1996ROUES052.

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Le potentiel des hydrates de carbones et plus particulièrement des acétals du glucose lorsqu'ils sont utilisés en tant qu'auxiliaires chiraux dans une réaction de synthèse asymétrique a été montré au cours de ce travail : il a été utilisé comme inducteur de chiralité pour la synthèse d'acides α-halogénés. Ainsi l'halogénation diastéréoselective d'acétals de cétènes trialkyl silylés dérivés du glucose permet d'accéder aux (S)-2-chloro-acides avec des excès énantiomèriques allant jusqu'à 95% et aux (S)-2-bromoacides avec une pureté énantiomèrique allant jusqu'à 85%. D'autre part, l'addition asym
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Navin, V. "One-Pot Synthesis Of Chiral Disulfides & Diselenides From α-Amino Acids Mediated By Ammonium Tetrathiomolybdate In Water". Thesis, Indian Institute of Science, 2001. https://etd.iisc.ac.in/handle/2005/268.

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We have described herein a convenient one-pot synthesis of lisulfides/diselenides from a-amino acids mediated by ammonium etrathiomolybdate in water. (Figure 1) (Figure) Figure 1 Transformation of α-amino acids into the corresponding tiiocyanates/selenocyanates/disulfides/diselenides Halo-de-amination of a-amino acids using HBr/NaNCte followed by treatment with ammonium tetrathiomolybdate (NH4)2]VloS4 jLb provided a general route for the the one-pot synthesis of chiral a,a' bis (dithio) carboxylic acids (Figure 1, 2b). The yields were moderate, limited mainly the moderate conv
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Navin, V. "One-Pot Synthesis Of Chiral Disulfides & Diselenides From α-Amino Acids Mediated By Ammonium Tetrathiomolybdate In Water". Thesis, Indian Institute of Science, 2001. http://hdl.handle.net/2005/268.

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We have described herein a convenient one-pot synthesis of lisulfides/diselenides from a-amino acids mediated by ammonium etrathiomolybdate in water. (Figure 1) (Figure) Figure 1 Transformation of α-amino acids into the corresponding tiiocyanates/selenocyanates/disulfides/diselenides Halo-de-amination of a-amino acids using HBr/NaNCte followed by treatment with ammonium tetrathiomolybdate (NH4)2]VloS4 jLb provided a general route for the the one-pot synthesis of chiral a,a' bis (dithio) carboxylic acids (Figure 1, 2b). The yields were moderate, limited mainly the moderate conversi
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Wai, Hung Tsang M. "The synthesis of chiral carboxylic acids and the determination of absolute configuration using [sup]1H NMR spectroscopy." Thesis, Kingston University, 1997. http://eprints.kingston.ac.uk/20611/.

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Lin, Ce-Hsuan, та 林世軒. "Enantioseparation of N-protected amino acids and carboxylic acids by high-performance liquid chromatography with π-acid derived quinidine as chiral stationary phase". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/22960169773696111614.

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碩士<br>朝陽科技大學<br>應用化學系碩士班<br>91<br>Abstract Due to dissimilarity of steric structure, the optically active medicines often result in the significant difference of pharmacology. This situation is gradually changing as number of companies have now stared to move towards producing enatiomerically pure forms. This proposal plans to develop one type of quinidine-derived chiral stationary phases (3,5-dinitrobenzoyl quinidine thiopropylsilanized silica ) which simultaneously possess the functions of aromatic π acid, aromatic π base and anion-exchanger. With this type of CSP, we plan to do enantiosepar
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Chaudhari, Sachin Rama. "Exploring Diverse Facets of Small Molecules by NMR Spectroscopy." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2879.

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The thesis entitled “Exploring Diverse Facets of Small Molecules by NMR Spectroscopy” consists of six chapters. The main theme of the thesis is to exploit one and two dimensional NMR methodologies for understanding the diverse facets of small organic molecules, such as, weak intra- and inter- molecular interactions, chiral discrimination, quantification of enantiomeric excess and assignment of absolute configuration. Several new pulse sequences have also been designed to solve specific chemical problems, in addition to extensive utility of existing one and two dimensional NMR experiments. The
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Chaudhari, Sachin Rama. "Exploring Diverse Facets of Small Molecules by NMR Spectroscopy." Thesis, 2014. http://hdl.handle.net/2005/2879.

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The thesis entitled “Exploring Diverse Facets of Small Molecules by NMR Spectroscopy” consists of six chapters. The main theme of the thesis is to exploit one and two dimensional NMR methodologies for understanding the diverse facets of small organic molecules, such as, weak intra- and inter- molecular interactions, chiral discrimination, quantification of enantiomeric excess and assignment of absolute configuration. Several new pulse sequences have also been designed to solve specific chemical problems, in addition to extensive utility of existing one and two dimensional NMR experiments. The
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Book chapters on the topic "Chiral Carboxylic Acid"

1

Wang, Yinli. "Kinetic Resolution of α-Hydroxy Carboxylic Acid Derivatives Based on Chiral Recognition of Substrate–Cocatalyst Complex." In Springer Theses. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-9398-3_3.

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Masse, C. E. "Using Chiral Imines." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00973.

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Masse, C. E. "Using Chiral -Acylhydrazones." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00976.

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Masse, C. E. "From Chiral Allylic Carbonates." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00305.

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Wolkenberg, S. E., and R. M. Garbaccio. "Alkylation of Chiral Oxazinones." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00351.

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Wolkenberg, S. E., and R. M. Garbaccio. "Alkylation of Chiral Imidazolidinones." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00352.

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Wolkenberg, S. E., and R. M. Garbaccio. "Alkylation of Chiral Acyloxazolidinones." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00356.

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Wolkenberg, S. E., and R. M. Garbaccio. "Addition to Chiral Sulfinimines." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00435.

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Chemler, S. R., and T. P. Zabawa. "Chiral 2-Sulfanylalkanoic Acids." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-00484.

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Garbaccio, R. M., and S. E. Wolkenberg. "Alkylation of Chiral Oxazinones." In Three Carbon-Heteroatom Bonds: Acid Halides; Carboxylic Acids and Acid Salts. Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-020-01056.

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Conference papers on the topic "Chiral Carboxylic Acid"

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Scolati, Haley, Brooks Pate, and Kevin Mayer. "CHIRAL TAG ROTATIONAL SPECTROSCOPY FOR CHIRAL ANALYSIS OF CARBOXYLIC ACIDS." In 2020 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.wk05.

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Scolati, Haley, Brooks Pate, and Kevin Mayer. "CHIRAL TAG ROTATIONAL SPECTROSCOPY FOR CHIRAL ANALYSIS OF CARBOXYLIC ACIDS." In 2021 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2021. http://dx.doi.org/10.15278/isms.2021.fm03.

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