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.
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Showing 1 to 7 of 7 for “"Alkyl ethers"”.
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Thermochemistry and bond energies of acetohydrazide, amides and cyclic alkyl ethers
… is acceptable for larger molecules. Cyclic ethers are a major initial product from the reactions or hydrocarbon radicals with triplet dioxygen (^3O_2) in low to moderate temperature oxidation and combustion reaction systems and atmospheric chemistry of small hydrocarbons. Thermochemical …
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Investigation of the synthesis and thermal rearrangements of 1,2,3,4,5-Pentaphenyl-2,4,-Cyclopentadiene Alkyl Ethers
… of six 1,2,3,4,5-pentaphenyl-2,4-cyclopentadiene alkyl ethers was investigated. It was determined that the most efficient route to these ethers was not the most generally accepted route to ethers - the Williamson Reaction - but rather a solvolysis reaction between …
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Synthesis and characterization of poly (butyl vinyl ether) homopolymers and copolymers utilizing the aluminum hydrogen sulfate catalyst system
… catalyst in the cationic polymerization of vinyl alkyl ethers. Highly isotactic polymers (greater than 70%) have been prepared and characterized by IH and 13C NMR. DSC characterization of poly(butyl vinyl ether) also reveals that these polymers are semicrystalline. Gel permeation chromatography …
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Palladium-catalyzed C-C, C-N and C-O bond formation
… the practical use of Pd catalysis to access aryl alkyl ethers for the first time. Continuing study of Pd-catalyzed C-N bond-forming processes using biaryl monophosphine ligands led to the discovery of a structural derivative of these ligands, 2-dicyclohexylphosphino-2',4',6'-triisopropylbiphenyl. …
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Cellulose Esters and Cellulose Ether Esters for Oral Drug Delivery Systems
… design and synthesis of a new class of polymers, alkyl cellulose ω-carboxyesters for ASD formulations investigated and the efficiency of the polymers were summarized to show that they have the anticipated properties. The polymers were synthesized by the reaction of commercial cellulose alkyl …
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Reductive elimination of alkylamines and ethers: reactions of bisphosphine-ligated palladium(II) complexes
… of benzylamines and the C(sp3)-O bond of benzyl ethers. The stereochemical outcome of the reaction indicates an ionic pathway, but the process lacks many of the effects of electronic and solvent perturbations that typically signal an ionic intermediate. We propose that reductive elimination from …
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I. Progress Toward Leiodelide A II. Palladium-Catalyzed Reactions of Enol Ethers
… A.</p><p>A palladium-catalyzed oxidation of alkyl enol ethers to ¿¿,¿¿-unsaturated aldehydes was developed. The reaction utilizes palladium loadings far lower than those used in traditional Saegusa oxidations of silyl enol ethers. Despite a number of published modifications of the Saegusa …