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Filtering by: Creator Kuhar, Thomas P. Remove constraint Creator: Kuhar, Thomas P. Degree Field Chemistry Remove constraint Degree Field: Chemistry

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  • Decomposition of di-p-toluenesulfonyl-hydrazones

    Creator:
    Bradway, Diane Elizabeth
    Abstract:
    Thermal decomposition of several di-p-toluenesulfonylhydrazones was studied. It was found that the carbene decomposition of tetramethyl-1,3-cyclobutanedione, di-p-toluenesulfonylhydrazone gave two products resulting from rearrangement. One was identified as 2,5-dimethyl-1,3,4-hexatriene. A tentative structure for the second was proposed. During the course of the study, a more convenient procedure for thermal decompositions was...
    Resource Type:
    Masters Thesis
    Full Text:
    ) TitIE TT{ERMAL DECOMPOSITION OF DI-P-TOLI'ENESUI,FOML- HYDRAZONES Abstract approve (l,tajor profeseor

  • A cerometric method for determination of copper in Paris green and ores

    Creator:
    Marsh, Thomas Parker
    Resource Type:
    Masters Thesis
    Full Text:
    THOMAS PARKER MARSH A THESIS submitted to the OREGON STATE COLLEGE in partial fulfillment of the

  • 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

  • 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:
    professor) The 3- cyclohexenyl carbinyl carbene species was formed by the thermal decomposition of the p

  • Synthesis and study of transparent p- and n-type semiconductors and luminescent materials

    Creator:
    Park, Cheol-Hee
    Abstract:
    New transparent p- and n-type semiconductors and luminescent materials have been prepared and characterized. Synthesis, structures, optical and electrical properties of new chalcogenide fluoride p-type transparent semiconductors MCuQF (M=Ba, Sr; Q=S, Se, Te) are described. Band-gap tuning and improvement in conductivity through p-type doping are demonstrated in the family. The...
    Resource Type:
    Dissertation
    Full Text:
    of Transparent p- and n-type Semiconductors and Luminescent Materials. Abstract approved: New

  • 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

  • Steroid dialkylcarbene reactions

    Creator:
    Dixon, Dale David
    Abstract:
    Steroid carbenes have been investigated as synthetic intermediates. Basic decomposition of 4-en-3-one tosylhydrazones (and other A-ring systems) gives varying amounts of 2, 4-dienes, and solvent derived products with diglyme, heptane, tetrachloroethylene, carbon tetrachloride, benzene and cyclohexene. A method for separating complex product mixtures was developed and a study of the...
    Resource Type:
    Dissertation
    Full Text:
    express my appreciation to Dr. F. Thomas Bond for his instruction, encouragement, and scientific

  • Dihalocarbene reactions with steroid olefins

    Creator:
    Cornelia, Richard Hartman
    Abstract:
    Dihalocarbenes have been generated mainly by thermal decomposition of sodium trihaloacetate and phenyl (trihalomethyl)mercury, and give gem-dihalocyclopropyl adducts with various steroid olefins. A new procedure involving the use of sealed tubes makes possible the addition of dihalocarbenes to sterically hindered olefins. In this manner, 7-cholestenyl benzoate when treated with PhHgCC1₃...
    Resource Type:
    Dissertation
    Full Text:
    . Thomas Bond for his critical reading of the manuscript. TABLE OF CONTENTS INTRODUCTION 1

  • 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

  • Steroid organoborane reactions

    Creator:
    Byall, Elliott Bruce
    Abstract:
    Steroid organoboranes have been found to be useful synthetic intermediates. Attempted pyrolyses, based on simple trialkylborane cyclizations, have not yielded C-19 or C-18 functionalized steroids, but have produced isomerized systems not otherwise available. Thus, hydroboration of cholesterol followed by pyrolysis at 215° gives 31% of 2-cholestene-6α-ol and 49% of a...
    Resource Type:
    Dissertation
    Full Text:
    . Thomas Bond Steroid organoboranes have been found to be useful synthetic intermediates. Attempted