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Filtering by: Subject Ring formation (Chemistry) Remove constraint Subject: Ring formation (Chemistry) Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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  • Exploratory studies of the mechanism of 1,3 sigmatropic ring expansion reactions

    Creator:
    James, Corinne Patricia
    Abstract:
    The potassium salts of certain 1-vinylcycloalk-3-en-l-ols have been found to undergo sigmatropic ring expansion rearrangements in HMPA. Preliminary investigations of several benzo-substituted medium ring systems were undertaken in order to determine which of these was best suited for further study. A synthetic sequence leading to the formation of 5-methy1-6-viny1-7,8,9,10-tetrahydro-6-benzocyclo-octenol, which...
    Resource Type:
    Masters Thesis
    Full Text:
    ring expansion reactions AN ABSTRACT OF THE THESIS OF Corinne James for the degree of Master of

  • The synthesis and spectral properties of 2,4-dioxabicyclo [3.3.1] nonanes

    Creator:
    Provant, Stephen Glenn
    Abstract:
    3-Methyl-2,4-dioxabicyclo [3.3.1] nonane and 7-hydroxy-3-methyl-2, 4-dioxabicyclo [3.3.1] nonane were synthesized by the method of Croxall, Glavis and Neher, although in low yields. The structure of both compounds was proven by analytical methods and analysis of their spectral properties. Tentative configuration of C-3 in both compounds was assigned on the assumption...
    Resource Type:
    Masters Thesis
    Full Text:
    th-e assurnption that the ring cl.osing step is kinetically controlled. Both configurations were

  • Hydrogen atom abstraction from saturated cyclic ethers and sulfides

    Creator:
    Hallen, Richard Thomas
    Resource Type:
    Masters Thesis
    Full Text:
    radical formation is the present topic of interest. For comparison, the effects of ring size on the

  • Preparation and reactions of 7-bicyclo [3.3.1] nonen-2-one

    Creator:
    Salisbury, Kirby Grant
    Abstract:
    2-Carboxy-3(3-cyclohexen-1-yl)propionic acid, 3-(3-cyclohexen-1-yl)propionic acid and 3-(3-cyclohexen-1-yl)propionyl chloride were prepared in sequence from ethyl-2-carbethoxy-3-(3-cyclohexen-1-yl)propionate. Cyclization of 3-(3-cyclohexen-1-yl)propionic acid in polyphosphoric acid resulted in the formation of 4, 5, 6, 7-tetrahydroindanone which was identified by its ultraviolet spectrum and its physical properties. 7-Bicyclo[3.3.1] nonen-2-one was prepared by a Friedel-Crafts cyclization of 3-(3-cyclohexen-1-yl)-propionyl...
    Resource Type:
    Masters Thesis
    Full Text:
    :3917e, 1950) 19. Prelog, V. Newer developments of the chemistry of many - membered ring compounds