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 “"Methyl Ethers"”.
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Synthesis of naphtho{2,3-c}pyrans including the aphin-derived quinone A'
… Chapter Two describes the synthesis of the methyl ethers of the naturally occurring quinones A and deoxyquinone A for evaluation of their "anti-cancer" activity by the National Institutes of Health. In Chapter Three the final few steps of the synthesis of the aphid-derived quinone A' are …
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Mass transport in metal-organic frameworks as a limiting step in size-selective oligomerization
… catalysis. Using acylated propylene-glycol methyl ethers as model substrates, the mass transport properties of these materials was investigated. Unfortunately, slow mass transport of solvated substrates through pores assumed to be sufficiently large for facile diffusion may prevent MOFs from …
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Structural investigations of the polysaccharide gum exudates from Brabeiurn Stellatifoliurn and Grevillea Robusta
… was apparent, although techniques such as methylation analysis, Smith-degradation and partial acid hydrolysis revealed small differences in fine structure. Brabeium stellatifolium gum was examined in somewhat more detail. In a study of hydrolysis of the gum by acid the degradation process …
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New Pathways for Asphaltenes Upgrading via Oxy-cracking in Liquid Phase
… like carboxylic acids, their salts, methyl ethers and esters, sulfur-oxidized forms plus phenolics, were determined as the most significant fractions soluble in water. Upstream solubilization and industrialization of derivatives of asphaltenes in water before the crude oils are …