Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 229 for “"carboxylic acids"”.
-
Studies of Complexes of Pyridine Carboxylic Acids
Made available in DSpace on 2014-12-09T17:35:24Z (GMT). No. of bitstreams: 1 6604264.pdf: 5204892 bytes, checksum: d004c79bfc4cc714646cace7a0c557d1 (MD5) Previous issue date: 1965
-
Racemization and asymmetric transformation of α-substituted carboxylic acids
Contains fulltext : mmubn000001_238752046.pdf (Publisher’s version ) (Open Access)
-
FTIR study of carboxylic acids and tyrosines in bacteriorhodopsin
… detection of absorption changes of single amino acids during the photoreaction. Aspartic acids and glutamic acids in bR were monitored by 13C labeling. Tyrosines were monitored by both 2H and nitrate substitution. Some of the amino acid band regions were decomposed by curve fitting. Alteration of …
-
Catalytic Conversion of Lignocellulosic Biomass to Carboxylic Acids and Derivatives
… and environmentally benign process to produce carboxylic acids and their derivatives, which are the building blocks for biofuels and biobased chemicals, from various lignocellulosic biomass types using recyclable heterogeneous catalysts in water and/or alcohol solutions. In this process, wet …
-
Strategic modification of oligonucleotides with carboxylic acids containing small molecules
… the specificity and stability of the RNA. Carboxylic acids such as folic and retinoic acid have been used extensively in RNA disease and cancer research due to their strong binding affinities to folate and retinoic acid receptors in the body. This has allowed us to tag various carboxylic …
-
Catalytic Conversion of Cellulose to Carboxylic Acids through Aqueous Phase Partial Oxidation
… of the catalyst through oxidation reactions to carboxylic acids with high selectivity. Noble metal loaded metal oxides and metal oxides were tested for their catalytic activity in the process. Gold nanoparticle loading was found to promote a yield of 12% by carbon weight of lactic acid as a …
-
Development of non-formaldehyde wrinkle resistant finishes for cotton and linen using carboxylic acids
… with an appropriate combination of mono and dicarboxylic acids in the presence of ingredients like an initiator and a catalyst. Therefore, an experimental study was developed with a 2x3x3 factorial design with the acid combination, pΗ, and concentration as the independent variables to help …
-
Integrated catalysis for upgrading microbial derived carboxylic acids to renewable fuels and value-added chemicals
Made available in DSpace on 2016-03-02T20:57:09Z (GMT). No. of bitstreams: 2 VARDON-DISSERTATION-2015.pdf: 52345307 bytes, checksum: 5dfd45d0fc96ab45c2d89ef1e4892e6b (MD5) LICENSE.txt: 4209 bytes, checksum: e37e56b79895fa2e14c646b004b32262 (MD5) Previous issue date: 2015-09-09
-
Expansion of the scope of the allenic Pauson-Khand reaction to include carboxylic acids and esters
… of lactones. Opening of the lactone created carboxylic acids that could then be converted to esters. By varing the functionality on the lactone and the Grignard reagents, a variety of allenes could be prepared to test the viability of the Pauson-Khand reaction in the presence of these …
-
Design of Reagents and Ligands for Direct Palladium-Catalyzed C(sp³)–H Functionalization of Aliphatic Carboxylic Acids
Carboxylic acid directed C–H functionalization reactions have garnered substantial attention over the past few decades. While C–C bond-forming reactions have been extensively explored, C–heteroatom bond-forming reactions remain comparatively underdeveloped. This thesis consists of five chapters, …
-
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 …
-
Identities and Catalytic Functionalities of Reactive Hydrogen Species during Hydrogen Addition and Oxygen Removal Reactions of Carboxylic Acids, Carbonyls, and Phenols at Transition Metal-solvent Interfaces
At transition metal and protic solvent interfaces, H-adatoms (H*) derived from H2 (10-60 bar) dissociative adsorption, and protons (H+) derived from either H* ionization or solvent self-ionization are catalytically reactive H species. These H species participate in or assist with hydrodeoxygenation …
-
Studies on the thermal decomposition behaviour, kinetics and electrical conductivity of the non-isothermal decomposition of pyridine mono carboxylic acids and some of their transition metal complexes
… of cobalt, nickel, and copper with mono-pyridine carboxylic acids in aqueous solution. The prepared complexes have been characterised by analyses, IR spectra, X-ray diffraction, magnetic moments, and electronic spectra. The stoichiometry of these compounds was ML2x(H20), (where M = metal ion, L = …
-
Studies in molecular recognition. Part I. Expanded molecular tweezers: Design and synthesis of novel receptors. Part II. Molecular self-assembly: Use of carboxylic acids as self-assembly elements
In Part I, the design, synthetic approaches, and complexation studies of molecular tweezers possessing spacer units $>$7 A are discussed. A general feature of these approaches is the use of the Friedlander reaction to generate the spacer unit. A tweezer utilizing 2,7-dimethoxyacridine as the …
-
Development and applications of copper(I) hydride catalysis in asymmetric reactions and heterocycle synthesis
… Hydroacylation Employing Unsaturated Carboxylic Acids as Aldehyde Surrogates The direct asymmetric copper hydride (CuH)-catalyzed coupling of [alpha],[beta]-unsaturated carboxylic acids to aryl alkenes is developed to access chiral [alpha]-aryl dialkyl ketones. A variety of substrate …
-
Cavity ring down: Construction, validation and experiments measuring the optical extinction of pure clays and their mixtures with salts and carboxylic acids under a range of atmospherically relevant conditions
… internally mixed with atmospherically relevant dicarboxylic acids were used to simulate atmospheric processing and compared to freshly emitted, pure montmorillonite aerosols under dry and humid environments. In all cases, the optical properties measured by cavity ring down have been used to obtain …
Page 1 of 12