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dc.contributor.authorHoskins, Travis Justin Christopheren_US
dc.date.accessioned2009-08-26T18:17:45Z
dc.date.available2009-08-26T18:17:45Z
dc.date.issued2008-07-10en_US
dc.identifier.urihttp://hdl.handle.net/1853/29769
dc.description.abstractThe Knoevenagel reaction was applied to form a carbon-carbon double bond between the aldehydes (HMF, furfual) and an alpha di-carbonyl compound. The alpha di-carbonyl compound used was malonic acid, which can be bio-derived from glucose along fermentation routes. The effects of solvents (THF, water, ethanol, isopropanol, ethyl ether, toluene) and catalysts (e.g. homogeneous and heterogeneous amines, solid basic oxides) on the yields of alpha-beta unsaturated acids were investigated. It was found that the homogeneous amines worked well in THF solvent (90-100% conversion, 99% selectivity for furfural and HMF), while the poly(styrene) supported ethylenediamine gave a higher conversion and selectivity for HMF (65± 5%, 99% selectivity) over furfural (58 ± 7%, 99% selectivity). This trend was also present in competition reactions where both HMF and furfural were reacted in the same vessel. á-â Unsaturated mono-acids for both HMF and furfural were identified as minor side products. However, levulinic acid did not work as well under the conditions studied. Lastly, among the solvents studied, several caused precipitation of the Knoevenagel products.en_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectHMFen_US
dc.subjectFurfuralen_US
dc.subjectKnoevenagelen_US
dc.subjectBiomassen_US
dc.subject.lcshAldehydes
dc.subject.lcshBiomass energy
dc.subject.lcshChemical bonds
dc.titleCarbon-carbon bond forming reactions of biomass derived aldehydesen_US
dc.typeThesisen_US
dc.description.degreeM.S.en_US
dc.contributor.departmentChemical Engineeringen_US
dc.description.advisorCommittee Chair: Dr. Christopher Jones; Committee Co-Chair: Dr. Pradeep Agrawal; Committee Member: Dr. Sujit Banerjee; Committee Member: Dr. Tom Fulleren_US


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