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Filtering by: DOI 10.1364/OL.37.000232 Remove constraint DOI: 10.1364/OL.37.000232 Degree Level Master's Remove constraint Degree Level: Master's

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  • The preparation and reactions of 1-(2-pyridyl)-3-menthyl-3-butene-2-ol and 1-(2-pyridyl)-4-methyl-3-butene-2-ol

    Creator:
    Janposri, Sompong
    Abstract:
    1-(2-pyridyl)-3-methyl-3-butene-2-ol was prepared by allowing 2-picolyllithium to react with methacrolein. In the reaction of picolyllithium with crotonaldehyde, two products 1-(2-pyridyl)-4-methyl-3-butene-2-ol and 1-(2-pyridyl)-4-methyl-2-butene-4-ol were formed. 1-(2-pyridyl)-3-methyl-3-butene-2-ol was subjected to the low pressure hydrogenation, using methanol as solvent and PtO₂ as catalyst. A red yellow liquid 1-(2-pyridyl)-3-methyl-2-butanol was obtained. Derivatives of the...
    Resource Type:
    Masters Thesis
    Full Text:
    THE PREPARA TION AND REACTIONS OF 1 -(2 -PYRIDYL) -3-METHYL-3-BUTENE-Z-OL AND 1-(2-PYRIDYL)-4

  • Reactions of certain purin-8-ols with phosphorus oxychloride in the presence of N,N-diethylaniline

    Creator:
    Ladwig, Laurence Gene
    Abstract:
    The reaction of certain purin-8-ols with phosphorus oxychloride and N,N-diethylaniline are described. 9-Amino-6-chloropurin-8-ol monohydrate reacted with phosphorus oxychloride and N, N-diethylaniline to yield the phosphorus oxychloride adduct. Other purin-8-ols were prepared and the production of analogs similar to the previously mentioned adduct was attempted. 6-Chloropurin-8-ol and 6, 9-diaminopurin-8-ol hydrochloride monohydrate...
    Resource Type:
    Masters Thesis
    Full Text:
    and N,N- diethylaniline are described. 9- Amino -6- chloropurin -8 -ol monohydrate reacted with

  • Oxy-Cope, and Siloxy-Cope rearrangement of cis-1-vinylcyclooct-3-en-1-ol

    Creator:
    Chin, Alice Wai-lee
    Abstract:
    Both oxy-Cope and siloxy-Cope rearrangements involve (1, 3) and (3, 3) sigrnatropic shifts. Both the concerted mechanism, and the stepwise mechanism via a diradical intermediate are possible. In a cyclic system such as cis-l-vinylcyclooct-3-en-l-ol, the thermal rearrangement takes place preferably through a diradical intermediate. At high temperature, the reaction also...
    Resource Type:
    Masters Thesis
    Full Text:
    -vinylcyclooct-3-en-1-ol AN ABSTRACT OF THE THESIS OF ALICE -WAI LEE CHIN for the M. S. (Name of student

  • Siloxy-cope rearrangements of the trans-l-vinylcyclotridec-3-en-l-ol system

    Creator:
    Bolesta, Richard Edward
    Abstract:
    The thermolysis of trans-1 -trimethylsiloxy- 1-vinylcyclotridec- 3-ene (VI-OTMS) led to the formation of two major products: 4-vinylcyclotridecanone (VII) and cyclopentadec-5-en-l-one (VIII) after hydrolysis. Ketone VII is produced by a concerted [3, 3] sigmatropic shift, while ketone VIII is formed by a [1, 3] sigmatropic shift with a concerted or diradical...
    Resource Type:
    Masters Thesis
    Full Text:
    THE TRANS-1- VINYLCYCLOTRIDEC- 3-EN-1- OL SYSTEM Abstract approved: Redacted for privacy Dr. Richard

  • Reactions of 1-phenyl-4-(2-pyridyl)-1-butene-3-ol

    Creator:
    Pojanagaroon, Pairoje
    Resource Type:
    Masters Thesis
    Full Text:
    Reactions of 1-Phenyl-4-(2-Pyridyl)-1-Butene-3-OL. AN

  • Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

    Creator:
    Aron, Patricia M.
    Abstract:
    Representing the most common flavonoid consumed in the American diet, the flavanols and their polymeric condensation products, the proanthocyanidins, are regarded as functional ingredients in various beverages, whole and processed foods, herbal remedies and supplements. Their presence in food affects food quality parameters including astringency, bitterness, sourness, sweetness, salivary viscosity,...
    Resource Type:
    Masters Thesis
    Full Text:
    status of the C-ring: flavan, flavanone, flavone, flavonol, dihydroflavonol, flavan-3-ol, flavan-4-ol

  • 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:
    scheme to prepare bicyclo- (2. 2. 0)hexan-l-ol produced the first known condensation of an enamine with

  • A Monte Carlo analysis of principal components and ridge regression with application to a fisheries evaluation model

    Creator:
    Sass, M. E. (Mary Ellen)
    Abstract:
    Essential to the testing of propositions in economic theory is the estimation of the parameters involved in relationships among economic variables. Probably the most widely used method of estimation is ordinary least squares (OLS). However, severe multicollinearity or near linear dependence of the explanatory variables can cause the OLS estimates...
    Resource Type:
    Masters Thesis

  • 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

  • Essential oil components of Alaska cedar heartwood

    Creator:
    Xiong, Yeping
    Abstract:
    The essential oil of Alaska cedar heartwood is known to contain compounds which contribute to the remarkable durability of this species. While previous research has identified several compounds, a complete description of this oil, which has a "burnt-grape fruit" odor, has not been undertaken. In this research a profile of...
    Resource Type:
    Masters Thesis
    Full Text:
    carvacrol, nootkatol, and eremophil- 1(10) ,ll-dien-13-ol. In addition, it was found that the diethyl