Search Constraints

Start Over
Filtering by: Creator Thomas, Duncan W. Remove constraint Creator: Thomas, Duncan W. Degree Field Chemistry Remove constraint Degree Field: Chemistry Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

Search Results

  • Total Synthesis of Isotopologues of Xanthohumol and its Congeners for Biological Studies

    Creator:
    Plagmann, Layhna S.
    Abstract:
    Xanthohumol [XN, (E)-6´-methoxy-3´-(3-methylbuten-2-yl)-2´,4´,4´´-trihydroxychalcone], the principal prenylated chalcone from hops, and its 2,3-dihydro- (DXN) and O6-desmethyl-2,3-dihydro- (DDXN) congeners, are of potential utility for the amelioration of metabolic syndrome; however, their complex bioactivity profiles cannot be properly studied and understood without access to appropriately produced synthetic materials. In the first part of...
    Resource Type:
    Masters Thesis
    Full Text:
    described in Chapter 2 was conducted with the assistance of Duncan C. Ellinwood. TABLE OF

  • The relationship between pantothenic acid and vitamin G

    Creator:
    Holaday, Duncan Asa
    Resource Type:
    Masters Thesis
    Full Text:
    THE RELATIONSHIP BETWEEN PANTOTHENIC ACID AND VITAMIN G by DUNCAN ASA HOILADAY A THESIS

  • Composition of the volatile oil from the foliage and terminal branches of Sierra juniper, Juniperus occidentalis, Hooker

    Creator:
    Fahey, Michael Duncan
    Resource Type:
    Masters Thesis
    Full Text:
    THE FOLIAGE AND TERMINAL 13RANCHE OF $IERA JUNIPER, JUNIPERUS 0CC IDENTALI$, HOOKER LJCHAEL DUNCAN

  • Reactions of organoboranes

    Creator:
    Thompson, Thomas Myron
    Abstract:
    An examination was made of some reactions involving a transfer of carbon from boron to carbon. In the case of the reaction of a C[subscript n] alkylorganoborane with dichlorocarbene the intermediate was a C[subscript n]₊₁ chloroalkylorganoborane. Oxidation of this intermediate yielded an homologous acid (33%) and the usual alcohol (66%)....
    Resource Type:
    Masters Thesis
    Full Text:
    Thomas Myron Thompson for the M. S. in Chemistry (Organic) (Name) (Degree) (Major) Date thesis is

  • Formation of alkyl-and dialkylcarbenes. The 3-cyclohexenyl carbinyl carbene system

    Creator:
    Crouse, Dale McClish
    Abstract:
    The 3-cyclohexenyl carbinyl carbene species was formed by the thermal decomposition of the p-toluenesulfonylhydrazone sodium salt and by oxidation of the hydrazone. Several oxidizing agents were studied. The products were investigated under aprotic and protic conditions and at various temperatures. The diazocompound was formed as an intermediate and found to...
    Resource Type:
    Masters Thesis
    Full Text:
    Gwendolyn Hansen ACKNOWLEDGEMENTS I wish to express my appreciation to Dr. F. Thomas Bond for his

  • Some synthetic efforts in small ring chemistry

    Creator:
    Lam, Luke Kwok Tung
    Abstract:
    Cyclopropylcyclobutene was prepared via the intermediate dicyclopropylcarbinyl carbene which was generated by the thermal decomposition of the sodium salt of dicyclopropylketone p-toluenesulfonylhydrazone. The successive thermal isomerization of cyclopropylcyclobutene to 2-cyclopropyl-1, 3-butadiene and to vinylcyclopentene was studied. Kinetic data were obtained for the cyclopropylcyclobutene to 2-cyclopropyl-1, 3-butadiene isomerization in the gas...
    Resource Type:
    Masters Thesis
    Full Text:
    . Thomas Bond Cyclopropylcyclobutene was prepared via the intermediate dicyclopropylcarbinyl carbene

  • X-ray photoelectron spectroscopy of trifluoromethylbenzenes and chlorofluoromethanes

    Creator:
    Holmes, Steven Allen
    Abstract:
    The core-electron ionization potentials for mono- and di(trifluoromethyl)benzene, for chlorofluoromethanes and for chlorine have been measured in order to give information on the electron distribution in these molecules and to investigate differences between the inductive effect of fluorine and that of CF3. For trifluoromethylbenzene the measured ionization potentials in eV...
    Resource Type:
    Masters Thesis
    Full Text:
    CHLOROFLUOROMETHANES Redacted for privacy Abstract approved: (Dr. T. Darrah Thomas) The core-electron ionization

  • Steroid-dihalocarbene reactions

    Creator:
    Damewood, John Roderick
    Abstract:
    Dihalocarbenes have been generated by thermal decomposition of sodium trichloroacetate and tribromomethylphenylmercury, and give mono dihalocyclopropyl adducts with steroid dienes. Such compounds offer an easy starting point for the synthesis of unusual derivatives of potential biological interest. Under the same conditions, however, addition to non-conjugated double bonds does not take...
    Resource Type:
    Masters Thesis
    Full Text:
    Dr. F. Thomas Bond for his guidance and assistance in the preparation of this thesis. TABLE OF

  • Chemistry of cyclobutane compounds

    Creator:
    Musa, Willie Edsel
    Abstract:
    Examination of a proposed reaction scheme to prepare bicyclo-(2.2.0)hexan-1-ol produced the first known condensation of an enamine with its carbonyl precursor. Hydrolysis of the resulting dienamine gave an unusual conjugated cyclobutenone in which the double bond is exocyclic. Characterization and reactions of the cyclobutenone were successfully carried out.
    Resource Type:
    Masters Thesis
    Full Text:
    (ltr5 ACKNOWLEDGEMENT The author wishes to express his appreciation to Dr. F.. Thomas Bond for his

  • Ion-pair high pressure liquid chromatography techniques for the determination of quaternary ammonium compounds

    Creator:
    Starbuck, Brian J.
    Abstract:
    Quaternary Ammonium Compounds, Qams, are an important class of chemicals which present interesting challenges to analysts. This thesis reports results of investigations on uses of ion-pairing techniques for separations and detection of Qams. Special apparatus for post-column solvent extraction of liquid chromatographic eluates was developed as part of this work....
    Resource Type:
    Masters Thesis
    Full Text:
    for PrivacyAbstract approved: Lawrence C. Thomas ABSTRACT Quaternary Ammonium Compounds, Qams, are