The preparation, characterization and dehydration of 2, 2-dimethyl-1-pentanol

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dc.contributor.committeeMemberCampbell, George W.
dc.contributor.committeeMemberBecker, Ralph S.
dc.contributor.committeeMemberOró, John F.
dc.contributor.committeeMemberZlatkis, Albert
dc.contributor.committeeMemberMcElrath, Eby N.
dc.creatorBenson, Royal Henry
dc.date.accessioned2022-06-22T19:53:35Z
dc.date.available2022-06-22T19:53:35Z
dc.date.issued1956
dc.description.abstractIt was the purpose of this investigation to synthesize 2,2-di-methyl-l-pentanol, an alcohol which had not been previously prepared or characterized, to determine its physical constants, characterize it by the preparation of several coinmon derivatives, and to determine quantitatively and qualitatively the rearranged products obtained upon dehydration. The synthesis was accomplished by the following series of reactions: n-propyl magnesium bromide was prepared and treated with acetone, giving, on hydrolysis, 2-methyl-2-pentanol. This compound, after purification, was converted to 2-chloro-2-methyl pentane, by the action of cold concentrated hydrochloric acid. The Grignard reagent of 2-chloro-2-methyl pentane was prepared, and treated with carbon dioxide, giving, on hydrolysis, 2,2-di-methyl pentanoic acid, which was identified by boiling point, and preparation of the amide. The acid was converted to 2,2-dimethyl-l-pentanol by reduction with lithium aluminumhydride. The alcohol thus obtained was shown to have better than 99 mole % purity by gas-liquid partition chromatography. Eight derivatives were prepared. The rearrangement and dehydration of 2,2-dimethyl-l-pentanol was accomplished by heating the alcohol with 8% by weight of concentrated eulfurie acid at ita boiling point. The determination of the wnsaturated rearranged products was accomplished by oxonication of the double bond, and reductive cleavage of the ozonides with lithium aluminum hydride to give a mixture of alcohols. These alcohols were identified and determined quantitatively by gas-liquid partition chromatography. All five of the theoretically possible rearranged products were identified.
dc.description.departmentChemistry, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other13724447
dc.identifier.urihttps://hdl.handle.net/10657/9874
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleThe preparation, characterization and dehydration of 2, 2-dimethyl-1-pentanol
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCollege of Arts and Sciences
thesis.degree.departmentChemistry, Department of
thesis.degree.disciplineChemistry
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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