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 9 of 9 for “"Glycolaldehyde"”.
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Carbonyl Catalysis: Hydrolysis of Organophosphorus Compounds and Application in Prebiotic Chemistry
… chemistry. A prebiotic-related aldehyde, glycolaldehyde was studied as the catalyst for the hydrolysis of organophosphorus compounds containing P(=O)-N bond, including phosphinic amides and phosphoramidates. Additionally, other prebiotic important substances, diamidophosphate (DAP) and …
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Density Functional Theory Calculations Complement Mass Spectrometry Experiments in the Investigation of Biomass Fast Pyrolysis and Ion-Molecule Reaction Mechanisms
… end of the polysaccharide by multiple losses of glycolaldehyde (or isomer) is competitive with the well-established mechanism of levoglucosan production via nucleophilic attack of the hydroxymethylene group at the anomeric carbon concerted with glycosidic bond cleavage. Computational …
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Structural Analysis of Carbohydrates by Mass Spectrometry
… ion (non-reducing sugar glycosidically linked to glycolaldehyde, m/z 221) discovered by Bendiak group, identity, anomeric information, and linkage position of the non-reducing sugar within a disaccharide can be determined from MS3 experiments. By utilizing pattern comparison algorithm, spectral …
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Understanding the role of local condensed phase environments in pyrolytic and catalytic biomass conversion
… opening and fragmentation pathways that lead to glycolaldehyde, a side product of pyrolysis. The work from this part of the thesis helps establish the ubiquitous involvement of the local condensed phase environment in mediating biomass pyrolysis reactions. Finally, aqueous phase hydrogenation of …
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Lab-scale fast-hydropyrolysis and vapor-phase catalytic hydrodeoxygenation for producing liquid fuel range hydrocarbons from intact biomass
… water and light oxygenates like formic acid, glycolaldehyde and hydroxyacetone are the major products of cellulose fast-pyrolysis. Increasing pyrolysis temperature in the range of 480 °C to 580 °C was found to increase the formation of light oxygenates, due to the increase in thermal cracking, …
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Atmospheric implications of untested carbonyl photochemistry: an evaluation using chemically explicit and global 3D modelling
… aldehydes (e.g., methylgyoxal and glycolaldehyde) make an important contribution to the chemical H2 production; GEOS-Chem showed that it is up to 10% throughout the troposphere (most influential in tropical regions). Results showed that including the previously unaccounted …
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Metalloenzymes required for glycan processing and morphological development in Streptomyces lividans
… the presence of GlxA using the GlxA substrate, glycolaldehyde. Synthesis and modification of the CslA/GlxA glycan will inevitably require degradation during the life cycle. As part of the cslA-glxA gene cluster are two genes encoding for putative polysaccharide degrading enzymes. One of these is …