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Cyclic Derivatives Of 2-Amino-2-Deoxy-D-Hexopyranoses, Kenji Miyai

University of the Pacific Theses and Dissertations

The purpose of this investigation was to prepare heterocyclic derivatives, bridging C-2 and C-3 of 2-amino-2-deoxy-D-hexopyranoses, useful as blocking groups in the preparation of aminosugar oligosaccharides and polysaccharides. The work reported herein is concerned with oxazolidones of 2-amino-2-deoxy-D-hexopyranoses (Figure 1).)

There are no examples known, in which five or six-membered rings are fused in a trans-arrangement to five-membered furanose ring. However, although synthetic difficulties were observed, sic and five-membered rings were fused in a trans-arrangement to a sic-membered pyranose ring as pointed out before. In the case of our trans-diequatorially fused oxazolidones additional preparative difficulties were expected, because of the …

A Short Route To Benzyl Beta-D-Glycosides Of 2-Amino-2-Deoxy-D-Glucose And -D-Allose And Elimination Of The 3-Sulfonate From Benzyl 4,6-O-Benzylidene-2-Benzyloxycarbonylamido-2-Deoxy-3-O-(Methylsulfonyl)- Beta-D-Glucopyranoside, William Denham Rhoads

University of the Pacific Theses and Dissertations

It is one purpose of this dissertation to introduce a facile method for the preparation of β glycosides of D-glucose and D-allose.

It is the second purpose of this dissertation to investigate the preparation of 2-oxazolidinones forming a bridge between C₂ and C₃ of allopyranose. This preparation, along with the facile preparation of β-benzyl glycosides of D-glucosamine and D-allosamine, should lead to compounds which, in a few steps, can conceivably be used for coupling at positions 1 and 4.

Mathematics Of The Variation And Mole Ratio Methods Of Complex Determination, James O. Wear

Journal of the Arkansas Academy of Science

No abstract provided.

A Polarographic Study Of Substituent Effects In Nickel(Ii)-Complex Ions Of Pyridine And Pyridine Derivatives, Keith Edward Fester

University of the Pacific Theses and Dissertations

The electrochemical technique of polarography was used to study the complexions formed by Ni(II) ion and pyridine compounds. It was of interest to vary the substituent group on the pyridine ring in order to observe the effects on the nickel - nitrogen coordinate bonds.

A Study Of The Birch Reduction Of M-Methoxybenzamide, Luther Dickson

University of the Pacific Theses and Dissertations

This thesis is (1) an investigation in the identity of the unknown material Qazi (20) obtained when benzamide was reduced at the boiling point of ammonia with 3.3 equivalents of sodium and ethanol, (2) characterization of the components of the brown liquid obtained when m-methoxybenzamide was reduced with a large excess of sodium (8 equivalents of more), and (3) characterization of the compound formed when the latter is subjected to sudden heat.

A Study Of Solvent Effects On The Reaction Between P-Nitrobenzyl Chloride And Hydroxide Ion In Aqueous Dioxane Homogeneous Media, Ken K. Ho

Masters Theses

"The kinetics and activation parameters of the reaction between p̲, p̲' - dinitrostilbene quantitatively, have been studied in five aqueous dioxane solvent systems at five different temperatures between 20⁰ and 40⁰C. At any one temperature the second-order rate constants are minimum in the 30% dioxane solvent mixture, reach a maximum in the 50% dioxane systems, and fall off slightly in the 60% and 70% dioxane systems. The Arrhenius activation energies are highest in the 30% dioxane and lowest in the 70% dioxane systems. The free energies of activation change in the same direction but the magnitude of change is much …

Dehydration And Rehydration Behavior Of Zinc And Magnesium Sulfate Heptahydrates, Hanaa Youssef Ghorab

Archived Theses and Dissertations

No abstract provided.

Catalytic Decomposition Of Hydrogen Peroxide By Manganese-Doped Magnesium Hydroxide, Nabih Philobbos Kelada

Archived Theses and Dissertations

No abstract provided.

Geochemical Abundance Of Iodine, Jane Hanisch Bennett

Masters Theses

"The research reported herein includes unpublished iodine and uranium data on a group of United States Geological Survey standards and on a group of ultrabasic rocks. Data are also included for the major rock types, deep sea sediments, and for graphite and troilite inclusions in iron meteorites. Tellurium data for the troilite are also reported. Appendix I is a literature article (Bennett and Manuel, 1967a) on Canyon Diablo Graphite. Appendix II is a literature article (Bennett and Manuel, 1967b) on deep sea sediments. The results of this study show that most of the earlier estimates of the crustal abundance of …

A Study Of Succinic Dehydrogenase, Indole Acetic Acid Oxidase, Nitrate Reductase And Cytochrome C Reductase In Hygrophorus Conicus, Jagdish M. Mehta

Doctoral Dissertations

"The activity of the enzyme succinic dehydrogenase (succinate : phenazine methosulfate oxidoreductase, EC 1.3.99.1) of Hygrophorus conicus, a member of a class of fungi known as basidiomycetes, was found to be stimulated by nitrate. Two substances were tested as electron acceptors in the measurement of succinic dehydrogenase activity. Of the two substances tried, phenazine methosulfate and brilliant cresyl blue, the former was found to be the best. Nicotinamide adenine dinucleotide (NAD⁺) was a necessary cofactor for the enzyme and could be readily dissociated from the enzyme. The enzyme has the properties of a high molecular weight nucleo- or lipoprotein.

The …

Deuterium Isotope Effects On The Solvolysis Rates Of Cyclopentyl Brosylates And Tosylates, Jimmie D. Christen

Doctoral Dissertations

"The brosylates and tosylates of cyclopentanol and its 1-d₁, c̲i̲s̲-2-d₁, t̲r̲a̲n̲s̲-2-d₁, and 2,2,5,5-d₄ analogs have been synthesized and their solvolysis rates measured at 25° in 70% vol. ethanol-water. The solvoylsis reactions were monitored by a conductance method. The isotope effects, k_H/k_D, observed for the brosylates and tosylates of each of the isotopically substituted cyclopentyl alcohols are as follows: 1-d₁-brosylate (1.1869) and 1-3₁-tosylate (1l1836); c̲i̲s̲-2-d₁-brosylate (1.1533) and c̲i̲s̲-2-3₁-tosylate (1.1577); t̲r̲a̲n̲s̲-2-d₁-brosylate (1.1803) and t̲r̲a̲n̲s̲-2-d₁-tosylate (1.1765); 2,2,5,5-d₄-brosylate (1.8881) and 2,2,5,5-d₄-tosylate (1.8863). The closeness in magnitude of the isotope effects for the c̲i̲s̲- and t̲r̲a̲n̲s̲-isomers is important in that it …

Surface Interactions Between Nickel Ions And Sodium Dodecyl Sulfate, Ralph Edward Coleman

Masters Theses

"In this research the interaction of nickel ions with the surfactant sodium dodecyl sulfate at the liquid-air interface was studied. Surface tension measurements were performed on pure sodium dodecyl sulfate solutions, with and without the addition of nickel ions. Results of these measurements showed that the addition of nickel ions lowered the equilibrium surface tension values of pure sodium dodecyl sulfate solutions and shifted the critical micelle concentration to lower concentrations. The foam fractionation technique was used to determine if the nickel ions could be removed from surfactant solutions. It was found that the removal of nickel ions was influenced …

Endogenous Metabolism Of Polyporus Sulfureus. : Utilization Of Exogenous Carbohydrates And Fatty Acids, Shu-Mei Wang

Masters Theses

"A strain of Polyporus sulfureus from the collection at the University of Missouri at Rolla was used in this investigation. Organisms of this genus have been reported to produce eburicoic acid in good yield and this was confirmed for the organism used in this study by the isolation and identification of eburicoic acid from the mycelium. Growth studies of this organism showed that 4% malt extract is a better medium than synthetic media containing asparagine, nitrate or nitrate plus 0.5% yeast extract as nitrogen sources. An examination of the pH of the culture medium led to the conclusion that regardless …

Active Magnesium Oxide Prepared From Magnesium Oxalate Dihydrate, Jehane Nour El Dine Ragai

Archived Theses and Dissertations

No abstract provided.

Electrocapillary Studies Of Reversible Charge Transfer V(Iii)/V(Ii) Electrode, Mohammad Ali Akhtar

University of the Pacific Theses and Dissertations

Electrocapillary equation for an ideal polarized electrode based on Gibb's adsorption equation is appropriately recast into experimentally measurable quantities in order to apply it to a reversible charge transfer electrode.

To calculate the various parameters of the equation developed, experimental details were worked out. For the measurement of Current-time relationship of a single drop, a fast response potentiostat was built by using transistorized chopped stabilized operational amplifiers and precision components in the circuitry with proper compensation for IR-drop in the cell and the electrical double layer capacity. The analysis of I-t curves was done by taking into account the composite …

Measurement Of Fluorescence Lifetimes Of Biologically Significant Compounds, Irene Adele Petz

University of the Pacific Theses and Dissertations

The purpose of this research was to measure fluorescence decay-times of several biologically significant compounds. Although various equations are available which permit one to calculate fluorescence lifetimes from spectral data, ample evidence exists which indicates such calculations are at considerable variance with experimental results.

Palladium And Platinum Complexes Of Substituted 4-Vinylcyclohexene, Donald Y. Chinn

University of the Pacific Theses and Dissertations

In recent years numerous complexes have been reported in which olefins were chelated to transition metals.Ever since the generally regarded first olefin complex, Zeise's salt (32) KPt(C₂H₄₃, the interest in this field of organometallic chemistry has expanded to several families of olefinic ligands and metals like palladium(II), platinum(II) copper(I), silver(I), and more recently vanadium and titanium

The nature of the bonding of olefins to metal atoms seemed to involved the interaction between pi electrons in the unsaturated molecule and the hybrid orbitals of the metal rather than a localized sigma bonds between the metal atom and …

An Attempted Preparation Of Cis-Diiodobis (Ethylenediamine) Chromium (Iii) Iodide, Douglas J. Harper

Dissertations and Theses @ UNI

An investigation of the preparation of CIS-diiodobis (ethylenediamine) Chromium (III) iodide was made. All attempts to prepare and characterize the salt failed. The thermal matrix preparation described by Wendlandt and Sveum could not be duplicated.

A Kinetic Investigation Of The Reaction Of Ethylenedinitrilotetraacetic Acid (Edta) And Cerium (Iv) In Acid Solution, Sahmia K. Al-Hashimi

Masters Theses

"The reaction between Ce(IV) salt solutions and EDTA solution was followed titrimetrically and spectrophotometrically and found to occur in stages. Four equivalents of Ce(IV) are reduced per mole of EDTA almost instantaneously at room temperature or even lower. With increasing temperature and reaction time an ultimate of about 14 equivalents of Ce(IV) is consumer per mole of EDTA. Formaldehyde, carbon dioxide, and other unidentified compounds are the products of oxidation of EDTA with Ce(IV). The kinetics of the reaction in aqueous sulfuric acid (0.09 - 2.95 M̲) was studied over the temperature range 11.7-40⁰ by a spectrophotometric technique. In the …

Dielectric Properties Of Solid Solutions Of Bifeo₃ With Pb(Ti, Zr)O₃ At High Temperature And High Frequency, Robert Travis Smith, Gary D. Achenbach, Robert Gerson, William Joseph James

Physics Faculty Research & Creative Works

Solid solutions of BiFeO₃ with PbTiO₃, PbTi_0.5Zr_0.5O₃, and PbZrO₃ were prepared. The crystallographic data on these solutions, which are basically perovskitic, are given. The dielectric constants of the materials were determined at a frequency of 0.53 GHz and at temperatures up to 800°C. Dielectric Curie points were found in solutions containing up to 90 mole % BiFeO₃. These results leave little doubt that BiFeO₃ is ferroelectric or antiferroelectric. The extrapolated Curie point for BiFeO₃ is above 850°C. BiFeO₃ appears more likely to be ferroelectric than …

The Synthesis And Characterization Of 4-Cyanopyridine Complexes Of Chromium (Iii) Chloride, Marcus Alfred Haile

Dissertations and Theses @ UNI

The preparation of a 4-cyanopyridine complex of chromium(III) chloride by two methods is described. The first method involved the mixing of 1-butanol solutions of 4-cyanopyridine and chrornium (III) chloride 6-hydrate at so0 c and the second involved the addition of chromium(III) chloride 6-hydrate to molten 4-cyanopyridine. The complex has been determined by elemental analysis and conductivity measurements as dichloroaquotris (4-cyanopyridine)chromium(III) chloride, [CrCl2(H20)(C6H4N2)3JCl. The compound was studied using infrared spectroscopy in the wavelength range 4000-700 cm-1 , with the bonding site on the 4-cyanopyridine indicated as nitrogen of the pyridine ring but not nitrogen of the nitrile group. Additional 4-cyanopyridine complexes …

Properties And Structure Of Some Chalcogenide Glasses, Amin Ismail Amin Abdel-Latif

Archived Theses and Dissertations

No abstract provided.

An Indirect Spectrophotometric Method For Expansion Of The Optimum Concentration Range, Henry David Mitchell

Masters Theses

No abstract provided.

A Study Of The Removal Of Pesticides From Water, James David Whitehouse

KWRRI Research Reports

The purpose of this study was to investigate some of the properties of pesticides as they exist in water, and to determine the effectiveness of several water treatment processes in the removal of pesticides from water. Among the pesticides investigated were malathion, DDT, aldrin, dieldrin, captan, benzene hexachloride (BHC), 2,4-D, and 2,4,5-T. The water treatment processes included aeration, chemical coagulation, adsorption on activated carbons and clays, and foam separation.

The removal of pesticides from water by aeration was found to be significant. Dieldrin was removed almost 100 percent, while aldrin, DDT, and BHC were removed to a lesser extent. 2, …

The Evaluation Of Certain Serum Iron Analyses By Atomic Absorption Spectroscopy, James Allan Boersma

Masters Theses

No abstract provided.

Water Quality Study Of Lake Mead, Dale A. Hoffman, Paul R. Tramutt, Frank C. Heller, Bureau Of Reclamation

Publications (WR)

This report presents Lake Mead Water quality data obtained from 1964 to 1966. The effect of filling Lake Powell on the water quality of Lake Mead is evaluated. General limnological principles and the present limnology of Lake Mead are discussed. Lake Mead has a warm monomictic annual temperature cycle characterized by summer stratification, fall overturn leading into a continuous circulation throughout the winter; temperatures never fall below 39 deg F (4 deg C). During stratification, lower dissolved oxygen values were recorded in the thermocline than in the epilimnion and hypolimnion. Mineral content increases from the upper to the lower end …

Pyrolysis Kinetics Of Ethyl Nitrate, Betty Meihorng Lee

Masters Theses

No abstract provided.

A Study Of The Synthesis And Reactions Of Condensed Pyriadazines, Lorraine Marie Distefano

Chemistry and Chemical Biology ETDs

A special interest in a nitramine rearrangement prompted the preparation of 1,4-diaminopyridazino [4,5-d] pyridazine and the nitration of this compound. Several reactions of the intermediates, which were synthesized en route to 1,4-diaminopyridazino [4,5-d] pyridazine, were studied. Strong evidence for the existence of keto-enol tautomerism was found in the case of 1,4-dihydroxypyridazino [4,5-d] pyridazine and its derivatives.

Some reactions of 5, 8-dichloropyrazino [2,3-d] pyridazine were studied with particular interest in the nucleophilic displacement of azides and in the nitration of 5,8-dianilinopyrazino [2,3-d] pyridazine.

The nitration of diaminophthalazine was also attempted in order to perform an acid catalyzed nitramine rearrangement from one …

The Ion-Exchange Chromatographic Separation Of The Components Of The Product Mixture Resulting From Reaction Of Trans-Dichlorobis (Ethylenediamine) Cobalt (Iii) Chloride With Thiocyanate Ion, William Trew Jordan

Dissertations and Theses

The object of the research was to study, by means of ion-exchange chromatography, the product mixture resulting from reaction of trans-[Co(en)₂Cl₂]Cl and SCN^-. Cis-and trans-[Co(en)₂(NCS)Cl]Cl had previously been obtained as products of this reaction. However, the possibility of the presence of other products consistent with the nature of the reactants could not be dismissed. These include the dichlora, dithiocyanato, and aqua complexes.

The constituents of the solution resulting from the reaction were separated on a column of Dowex 50W-X8 resin by elution with hydrochloric acid. The eluted fractions were evaporated at room …

9th Annual Meeting Rocky Mountain Spectroscopy Conference

Rocky Mountain Conference on Magnetic Resonance

Program and abstracts from the 9th annual meeting of the Rocky Mountain Spectroscopy Conference, sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, August 7-8, 1967.