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Showing 1 to 20 of 316 for “"carboxylic acid"”.
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Carboxylic Acid Hydrodeoxygenation over Supported Noble Metal Catalysts
<p>Carboxylic acid hydrodeoxygenation (HDO) over supported noble metal catalysts was carried out in order identify the main challenges associated with supported monometallic catalysts and identifying solutions that may increase the practicality of these high activity metals. Using propionic acid as …
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Hydrolysis and Atmospheric Oxidation Reactions of Perfluorinated Carboxylic Acid Precursors
… that lead to the production of perfluorocarboxylic acids (PFCAs), a family of environmental pollutants that does not undergo any further degradation pathways. The compound perfluoro-2-methyl-3-pentanone (PFMP) is a new fire fighting fluid developed by 3M that is designed as a Halon …
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Carboxylic acid and formaldehyde separation from aqueous solutions using ionic liquids
… (ILs) have been employed to extract acetic acid (AcOH) or formaldehyde (HCHO) from aqueous solutions at atmosphere pressure. The ILs, mainly trihexyl(tetradecyl)phosphonium ([P6,6,6,14]+) carboxylate based ILs, were tested as a function of the anion chain length, which ranges from …
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The Coordination Chemistry of an Anti-Cancer Agent: 1-Aminocyclopentane Carboxylic Acid
Made available in DSpace on 2014-12-09T17:34:50Z (GMT). No. of bitstreams: 1 6406142.pdf: 5080396 bytes, checksum: ff6550564c3b04b922082f0a85727e23 (MD5) Previous issue date: 1963
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Synthesis and Characterization of 1-Methyl-4-Substituted-3-Piperidine-Carboxylic Acid N, N-Diethyamide.
… N,N-dimethyltryptamine (DMT) and d-lysergic acid diethylamide (d-LSD) all act at the same site, namely, the serotonin (5-hydroxytryptamine) receptor in the brain, it was found that 1-methyl-1,2,5, 6-tetrahydropyridine-3-(N,N-diethylcarboxamide) (THPC), a compound similar in structure to the …
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Convergent Site-Selective Carbohydrate-Peptide Ligations With Dehydroalanine and Aziridine -2 -Carboxylic Acid-Containing Peptides
… incorporation of dehydroalanine and aziridine-2-carboxylic acid residues into peptides and subsequent conjugation of the resulting peptide electrophiles with various thiols. Oligosaccharides incorporating a suitable anomeric thio-functionality were prepared via dehydrative glycosylation and …
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Investigating co-crystallisation of primary amides and carboxylic acids. Comparative analysis of Benzamide, Isonicotinamide and Nicotinamide co-crystal growth with carboxylic acid.
… is complimentary to the primary amide, usually carboxylic acids. The progress with regards to the screening process for the determination of co-crystals is evident in the literature, In particular, high throughput solution growth methods and solvent drop grinding. The comparison of …
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The Toxicokinetic Behavior of Cyanide, Thiocyanate and 2-Amino-2-Thiazoline-4-Carboxylic Acid Following Cyanide Exposure in Multiple Animal Models Utilizing Novel Methods of Detection
… as thiocyanate (SCN-) and 2-amino-2-thiazoline-4-carboxylic acid (ATCA)) has been proposed. Novel methods of simultaneous detection of cyanide and thiocyanate were developed utilizing chemical-ionization gas-chromatography mass-spectrometry (CI-GC-MS) and high-performance liquid chromatography …
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Introgression of the Genes for Sesquiterpene Carboxylic Acid Synthesis From a Wild Tomato, Lycopersicon Hirsutum, Into the Cultivated Tomato for Increased Host -Plant Resistance to Insect Pests
F2 and backcross progeny were assayed for the presence of polymorphic molecular markers using the Amplified Fragment Length Polymorphism (AFLP) protocol. Progeny of each generation were separated into high and low classes for SCA levels and the DNA combined of individual plants within the …
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Engineering semiconductor quantum dots for quantitative imaging of cell motility and invasion
… to present alkane, alkene, alkyne, PEG and carboxylic acid, carboxylic acid, and solely PEG, were incubated on poly-l-lysine, collagen, fibronectin, and gelatin coated glass coverslips. Based upon the emission intensity normalized by the quantum yield (QY), the binding of the QDs were …
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Enabling Synthesis Toward the Production of Biocompatible Magnetic Nanoparticles With Tailored Surface Properties
… a polyurethane central block with pendant carboxylic acid groups flanked by hydroxyl functional polyether tails were synthesized. Our intention was to investigate the activities of these copolymers as dispersants for magnetite nanoparticles in biological media. A benzyl alkoxide initiator …
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Repositioning fusidic acid for tuberculosis: semi-synthesis of analogues and impact of mycobacterial biotransformation on antibiotic activity
… therapeutic options for TB chemotherapy. Fusidic acid (FA), a natural product-derived antibiotic, has modest in vitro antimycobacterial activity. Through a multi-disciplinary approach combining aspects of chemistry and biology, this study investigated the pharmacological and physicochemical …
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A pH Switchable Responsive Surface for the Trapping And Release of a Hydrophobic Substance
… has been prepared having a terminal anthranilic acid (AA) moiety on silica gel particles, microscope slides, and TLC plates in three steps. First, a vinyl group was attached to the surface. Then, this vinyl group was reacted to form a surface carboxylic acid group. Finally, the carboxylic acid …
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Heterocycles in peptide chemistry
… heterocyclic rings that bear both amine and carboxylic acid functional groups has been investigated using a 1,3-dipolar cycloaddition reaction strategy. These molecules, on incorporation into a chain of amino acids, have the potential to restrict the conformational freedom of the …
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The development and application of liquid chromatographic - mass spectrometric methods for the veterinary drugs carbadox and olaquindox
… carbadox marker residue in tissue, quinoxaline-2-carboxylic acid, is described. The method was validated over the range 3.0 - 300 pg kg"1, to reflect the range of concentrations measured in NI National Surveillance Scheme samples. The Decision Limit and Detection Capability are also described. …
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Synthesis and Characterization of Polylactide-siloxane Block Copolymers as Magnetite Nanoparticle Dispersion Stabilizers
… triblock copolymers with pendent carboxylic acid functional groups have been designed and synthesized for study as magnetite nanoparticle dispersion stabilizers. Magnetic nanoparticles are of interest in a variety of biomedical applications, including magnetic field-directed drug …
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Studies in isothiazole chemistry: I. isothiazolo [5,4-b] pyridines. II. approaches to isothiazolynes
… than the expected isothiazolo[5,4-b] pyridine carboxylic acids and chromic acid oxidation resulted in cleavage of the isothiazole ring to give 2,3-disubstituted pyridines. Ethyl 4-hydroxy-3-methylisothiazolo[5,4-b] pyridine-5-earboxylabe was readily obtained by thermal cyclisation of the …
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Creation of crosslinkable interphases in polymer blends by means of novel coupling agents
… prepared. In blends of amino- functional and carboxylic acid terminated polymers the oxazoline and oxazinone units of the SCA react selectively with one of the polymers and, therefore, the SCA should locate at the interface. The remaining hydrosilane sites can now be used for further …
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Design and use of novel metal catalysts in organic synthesis
… carboxylates were synthesised, incorporating carboxylic acid ligands bearing a fenchyl chiral auxiliary. Synthesis of carboxylic acid ligands bearing a bulky adamantyloxy group or a tert-butoxy group in place of the fenchyl substituent was investigated to simplify the stereochemical features, …
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Tetrazine-Triggered Bioorthogonal Decaging Reactions for Prodrug Activation
… IEDDA reaction to cleave protecting groups from carboxylic acid- and alcohol-containing molecules. The first project relates to the development of both vinyl and trans-cyclooctene (TCO) protecting groups to mask a carboxylic acid-containing anti-inflammatory drug. In each case, the prodrug …
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