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A spectrophotometric study of niobium (V) in hydrochloric acid solution

Creator:: Kanzelmeyer, James Herbert
Resource Type:: Dissertation
Full Text:: Acid Solution A S ECTRO HOTQ TRIO STUDY OF NIOBIUM (V) IN HYDROCHLORIC ACID SOLUTION by JAMES

Reactions of I-(α-pyridyl)-3-buten-1-o1

Creator:: Whitman, James Edgar
Abstract:: The purpose of this project was to study the reactions of 1-(α-pyridyl)-3-buten-1-ol (compound I) and to determine whether or not the products of some of its reactions are quinolizinium salts. Reaction of compound I with bromine or iodine yields halide salts (when no external cooling is applied) instead of the...
Resource Type:: Masters Thesis
Full Text:: each liquid was rneasured. REACTIONS Or. I-( o -PYRIDYL) -3-BUTEN- 1-OL by JAMES EDGAR WHITMAN A

Characterization of chloride complexes of niobium (v.)

Creator:: Ryan, Jack Lewis
Resource Type:: Masters Thesis
Full Text:: Characterization of chloride complexes of niobium (V

Mechanistic studies on Re(V) mediated C-O bond transformations

Creator:: Zhuravlev, Fedor
Abstract:: In situ, reduction of Cp*ReO₃ by PPh₃ to form (Cp*ReO)₂(μ-O)₂ allows catalytic deoxygenation of epoxides, however, conproportionation between Reⱽ and Reⱽᴵᴵ species to form clusters of ((Cp*Re)₃(μ-O)₆}²⁺(ReO₄⁻)2 and new compound {(Cp*Re)₃(μ²-O)₃(μ³-O⁾³ReO₃}⁺(ReO₄⁻) leads to removal of rhenium from the catalytic cycle and loss of activity, The epoxide deoxygenation mediated by (Cp*ReO)₂(μ-O)₂...
Resource Type:: Dissertation
Full Text:: (V Mediated 0-0 Bond Transfor- mations. Abstract Approved: Kevin Gable In situ, reduction of Cp

Condensation reactions of certain aldehydes and amines with acetylbenzoyl

Creator:: Klemm, Waldemar Arthur, Jr.
Abstract:: Acetylbenzoyl reacted with dimethylamine hydrochloride and benzaldehyde in primary isoamyl alcohol under reflux conditions to form 1,4-diphenvl-3-butene-1,2-dione, compound I, which melted at 56-57°C. Compound I formed a quinoxaline derivative, compound II, which melted at 152.5-153°C. Compound I was cleaved by hydrogen peroxide to form cinnamic acid, compound III, which melted...
Resource Type:: Masters Thesis
Full Text:: , compound IV, which melted at 192 -193 °C. Compound IV formed an oxime derivative, compound V, which

A synthesis of 6-n-propyl-7-methyltetralin-5-C¹⁴

Creator:: Odell, Norman Raymond
Resource Type:: Dissertation
Full Text:: apprEt ciat1on to Dr. Albert v. Logan and Dr. E. N. arvell for their helpfUl suggestions and

Addition reactions of the condensate of picolyllithium and certain unsaturated aldehydes

Creator:: Wischmann, Kenneth Brandt
Resource Type:: Masters Thesis
Full Text:: author wishes to express his sincere thanks to Dr. Albert V. Logan for his guidance and. help during

Chemical studies on Dihydroquercetin

Creator:: Coad, Peter
Resource Type:: Dissertation
Full Text:: . Objectives of Investigations . . . I V. Experimental . . . Optically Active Dihydroquercetin . Racernic

The preparation of nickel (II) thiocyanate complex compounds with certain organic bases and the determination of their heats of formation

Creator:: Carle, Don Wayne
Resource Type:: Masters Thesis
Full Text:: . A CKNOWLEDGELIENT The writer wishes to express his grat- itudo to Dr. A. V. Loan for his

Reactions of the condensates of picolyllithium and acrolein and methacrolein

Creator:: Nash, Boyd D.
Resource Type:: Masters Thesis
Full Text:: -------- C6H5CHCF{CHOJICH2R V - 2-pyridyl, 4-pyridyl, or 5-methyl-2-pyridyl C6H5CHCHCHCHR VI More recently

The addition of hydrogen bromide to 3-methylcyclohexene

Creator:: Dickison, Robert Hanmore
Resource Type:: Masters Thesis
Full Text:: wishes to express his gratitude to Dr,. Albert V. Logan and Dr., Elliot N,., Marvell tor their aid

The Robinson-Mannich base synthesis applied to substituted acetoacetic ester

Creator:: LaPore, Richard Francis
Resource Type:: Dissertation
Full Text:: -doctoral fellowship . Gx-atef'ul thanks are also e;xtended to DP. Albert V.. Logan :for his guidance

Speciation of inorganic arsenic by hydride generation atomic absorption spectroscopy

Creator:: Ikeda, Marcia Sakiko
Abstract:: A sensitive technique for the determination of As(III) and As{V) at μ/L and sub-μg/L concentrations from a single sample aliquot has been developed. This technique is based on the hydride generation atomic absorption (HGAA) spectrophotometry. The hydrides of the arsenic species are generated in a reaction vessel by mixing the...
Resource Type:: Masters Thesis
Full Text:: §qsngDrieeneratiotordc Absorption Spectroscopy Redacted for Privacy Abstract approved: James D. Ingle, Jr. A

Part I : development and application of an arsenic speciation technique using ion-exchange solid phase extraction coupled with GFAAS ; Part II : investigation of zinc amalgam as a reductant

Creator:: Bos, Mark C.
Abstract:: Two related techniques, based upon ion-exchange solid phase extraction, have been developed for the determination of arsenic speciation. The inorganic arsenic species arsenite (As(III)) and arsenate (As(V)) are separated by anion-exchange and detected with graphite furnace atomic absorption spectrophotometry (GFAAS) with a nickel matrix modifier. The first separation technique, which...
Resource Type:: Masters Thesis
Full Text:: Amalgam as a Reductant Abstract approved: James D. Ingle Jr. Two related techniques, based upon ion

The determination of gasoline and alkyl benzenes in aqueous solution and the development of a remote reaction chamber for fiber optic remote sensing

Creator:: Waddle, Robert D.
Abstract:: The development and optimization of a single-phase derivatization technique for small ring aromatics in water are presented. Also described are the design, optimization and application of a remote reaction chamber for fiber optic sensing. Aqueous solutions of the major aromatic compounds in gasoline are derivatized to o-nitrosophenol-Cu complexes with a...
Resource Type:: Masters Thesis
Full Text:: gasoline sample. The technique provides a detection limit (DL) of 4 x 10-5 % (v/v) and 4 x 10-4 % (v/v

Part I: Synthesis and evaluation of synosutine as an inhibitor of serotonin, norepinephrine, and dopamine transporters Part II: Asymmetric approach to the tetracyclic core of neomangicol A

Creator:: Juniku, Rajan B.
Abstract:: Part I: Racemic and asymmetric syntheses of a new substance with prospective antidepressant properties were achieved. In vitro assays with synthetic racemates (±)-25 and (±)-26 suggested that the former is a relatively selective inhibitor of serotonin transporter whereas the latter is a more balanced inhibitor of both serotonin and norepinephrine...
Resource Type:: Dissertation
Full Text:: Abstract approved: _____________________________________________________ James D. White Part I

Studies toward the synthesis of halichlorine and pinnaic acid

Creator:: Korf, Eric A.
Abstract:: Three approaches toward the core of halichlorine and pinnaic acid are described. The first approach entails a racemic transannular nitrone-olefin [3+2] cycloaddition from nitrone 238. Construction of the nitrone 238 began with aldehyde 241. Another key feature in this route involved a ring-closing metathesis for the formation of a 14-membered...
Resource Type:: Dissertation
Full Text:: approved: James D. White Three approaches toward the core of halichlorine and

Studies towards the total syntheses of (+)-phomactins A, D and G

Creator:: Schwartz, Keith D.
Abstract:: Studies towards the total synthesis of (+)-Phomactin A (1), D (6), and G (9), fungal metabolites with unique molecular architecture and pronounced biological activity, are described. These studies resulted in the synthesis of advanced intermediates 354 and 356, which contain all of the carbon atoms of 1, 6 and 9....
Resource Type:: Dissertation
Full Text:: James D. White Studies towards the total synthesis of (+)-Phomactin A (1), D (6), and G (9), fungal

Analytical and mechanistic studies of the chemiluminescence oxidation of hydroxy-containing compounds

Creator:: Vasquez de Montalvo, Socorro I.
Abstract:: This thesis is concerned with the development and use of routine analysis techniques based on chemiluminescence (CL) detection for: 1) ethanol in gin down to the 0.3% (v/v) level; 2) the antioxidants propyl gallate and BHA in lard to levels as low as 0.3 and 0.2 mg/L, respectively; 3) pyrogallol...
Resource Type:: Dissertation
Full Text:: the 0.3% (v/v) level; 2) the antioxidants propyl gallate and BHA in lard to levels as low as 0.3 and

Gas chromatography of metal halides

Creator:: Dennison, James Eugene
Abstract:: An all-glass gas chromatograph was developed for the analysis of corrosive metal halides. Included in the apparatus is a new liquid sampling system designed for fast repetitive sampling of corrosive liquids in an inert atmosphere. A flame photometer detector was developed to permit the detection of corrosive solutes in the...
Resource Type:: Dissertation
Full Text:: THESIS OF James Eugene Dennison for the Ph. D. in Chemistry (Name) Date thesis is presented

Polarization spectroscopy and photodissociation studies of nitroaromatic compounds in the gas phase

Creator:: Abbott, James E.
Abstract:: The central purpose of this dissertation was to explore and expand the use of an uniform electric field for orientation and for subsequent spectroscopic investigation of asymmetric polar molecules in the gas phase. The systems of study were nitrobenzene (NB) and the nitrotoluene (NT) isomers. We were able to quantitatively...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF James E. Abbott, Jr. for the degree of Doctor of Philosophy in Chemistry presented on

Design, construction, and characterization of a six-electrode, direct current, variable length plasma source for atomic emmission spectroscopy

Creator:: Shields, James Phillip
Abstract:: The variable length, six-electrode plasma source for atomic emission spectroscopy described here is operated from three compact, simple, and inexpensive direct current power supplies. The vertical arcs formed between the three electrode pairs completely entrain the sample and are typically operated at 40 V and 20 A. Three concentric quartz...
Resource Type:: Dissertation
Full Text:: THE THESIS OF James Philip Shields for the degree of Doctor of Philosophy in Chemistry presented on

The chemical nature of the "lignin" of the bark of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:: Smith, James E. (James Edward)
Resource Type:: Dissertation
Full Text:: DOUGLAS FIR, · PSEUDOTSUGA MENZIESII (MffiB.) FRANCO by JAMES EDWARD ITH A THESIS submitted to

The nature of the chemical constituents of incense cedar, Libocedrus decurrens (Torr.) bark

Creator:: Smith, James E. (James Edward)
Abstract:: The purpose of this investigation was to determine the nature of the chemical constituents of incense cedar bark with the hope that such an endeavor would spur future research, development and use of a now neglected natural raw material. The bark from nine trees, which were separated into three age...
Resource Type:: Masters Thesis
Full Text:: , (Libocedrus Decurrens Torr.) Bark AN ABSTRACT OF THE THESIS OF James Edward Smith for the U.S. in

Oxidation of ethanol and phenols with permanganate for chemiluminescence analysis

Creator:: Al-Mutawah, Jameela Isa
Resource Type:: Masters Thesis
Full Text:: Permanganate for Chemiluminescence Analysis Abstract approved: James D. Ingle, Jr. This thesis is

Synthetic approaches to the tricarbonyl subunit of rapamycin

Creator:: LaMunyon, James B.
Abstract:: Rapamycin (5) was isolated in 1975 from the soil bacteria Streptomyces hygroscopicus and its structure was determined from spectroscopic techniques and an x-ray crystallographic analysis. Although it was initially found to exhibit antibiotic activity, it was subsequently shown to possess potent immunosuppressive activity as well. Three approaches to the synthesis...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James B. LaMunyon for the degree

Design and application of a microcomputer automated multielement flame atomic fluorescence instrument

Creator:: Neyzari, Shahrokh Ghaffari
Abstract:: An automated multielement flame atomic fluorescence (AF) spectrometer based on microcomputer control was constructed to determine four elements simultaneously. The instrument employs a multiple exit slit monochromator where the light from various exit slits is directed to a single detector with a mirrored funnel. Each element is excited to fluoresce...
Resource Type:: Dissertation
Full Text:: (Ghaemi) Ghaffari Whom I (X)' the most, With special thanks to Dr. James D. Ingle, my thesis advisor

Characterization and applications of polyphenol chemiluminescence reactions and flow cell instrumentation

Creator:: Miller, Robert J. (Robert James), 1933-
Resource Type:: Dissertation
Full Text:: chemiluminescence reactions and flow cell instrumentation AN ABSTRACT OF THE THESIS OF Robert James Miller for

Evaluation of sampling/preconcentration techniques and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water

Creator:: Prayoonpokarach, Sanchai
Abstract:: A direct purge technique was developed for the determination of chloroform or trichloroethylene (TCE) in water samples. These volatile organic solvents are transferred from the water sample to a reagent where they are trapped and react to form products (Fujiwara chemistry) that are monitored fluorometrically. Chloroform in a water sample...
Resource Type:: Masters Thesis
Full Text:: Fluorometric Determination of Chloroform and TCE in Water Abstract approved: James D. Ingle, Jr. A direct

Approaches to the synthesis of trichothecane sesquiterpenes

Creator:: Thomas, James Anthony
Resource Type:: Dissertation
Full Text:: sesquiterpenes AN ABSTRACT OF THE THESIS OF James Anthony Thomas for the degree of Doctor of Philosophy in

A kinetic investigation of the mechanism and intermediates of the chromium(VI)-Iodide reaction

Creator:: Gaswick, Dennis Charles
Resource Type:: Dissertation
Full Text:: for Privacy Abstract approved: James Krueger (s) The kinetics of the reaction between HCrO4 and I in

Theoretical and experimental factors affecting the accuracy and precision of atomic absorption measurements

Creator:: Bower, Nathan Wayne
Abstract:: A procedure for evaluating the precision of atomic absorption measurements is presented and applied to 21 elements under varying instrumental conditions. The experimental relative standard deviations (RSD's) in absorbance obtained from repetitive measurements made with a high resolution voltmeter and on-line computer, are compared to those predicted by a recently...
Resource Type:: Dissertation
Full Text:: of instrumentation 41 45 IV. Instrumental variables 47 V. Standard solutions VI

Development and evaluation of sampling techniques, instrumentation, and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water with a portable fluorometer

Creator:: Prayoonpokarach, Sanchai
Abstract:: A novel, portable, filter fluorometer was developed for the determination of chloroform and TCE at environmentally-relevant levels when coupled with improved sampling techniques and reagents. Reagents selective for the TCE or chloroform convert these toxic species into fluorescent species that can be monitored. The fluorometer is based on LED excitation...
Resource Type:: Dissertation
Full Text:: Chloroform and TCE in Water with a Portable Fluorometer Abstract approved: James D. Ingle, Jr. A novel

Continuous sample flow and mercury (II) speciation studies utilizing the cold vapor atomic absorption method for mercury determination

Creator:: Oda, Carl Ekio
Resource Type:: Masters Thesis
Full Text:: for Mercury Determination Redacted for Privacy Abstract approved: James D. Ingle, Jr., Associate

A reaction rate determination of aluminum with a microcomputer-based spectrofluorometer

Creator:: Campi, Gregory Louis
Abstract:: The development and optimization of a fluorometric reaction rate method for the determination of aluminum is described. Modifications to existing instrumentation permit automatic monitoring and reporting of measurement conditions. Automatic correction of measured analytical signals is provided if monitored parameters deviate from optimum values. A computer controlled standard addition procedure...
Resource Type:: Masters Thesis
Full Text:: solutions used in experiments. 48 V. Results of reagent clean-up procedure. VI. Interference study results

A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation

Creator:: Dewald, Lamar Robert
Abstract:: An automated instrument based on a single-board microcomputer was developed for use in voltammetric analyses. Operator input of numerous experiment parameters allows any type of voltammetric analysis to be implemented and multiple scans to be run unattended. A three operational amplifier potentiostat is used to control the cell voltage and...
Resource Type:: Dissertation
Full Text:: . DAC12 DATA 214 V. COMPUTER BOARDS 215 VI. SYM I/O LINES 217 VII. PROGRAM LISTINGS 222 LIST OF

A critical comparison of methods for the determination of phytoplankton chlorophyll

Creator:: Salinas, John T.
Abstract:: The concentration of chlorophyll in natural bodies of water is commonly determined as a means to rapidly estimate the phytoplankton biomass. The literature gives numerous warnings, however, as to the problems involved with accurately determining chlorophyll concentrations. The author's work at Crater Lake, Oregon enticed him to explore critically the...
Resource Type:: Masters Thesis
Full Text:: . James D. Ingle, Jr. The concentration of chlorophyll in natural bodies of water is commonly determined

Studies of chemical speciation of trace metals in natural waters using an on-line electrochemical cell and ion exchange system

Creator:: Sule, Pushkar Anant
Resource Type:: Masters Thesis
Full Text:: and Ion Exchange System Abstract approved: Redacted for privacy James D. Ingle, Jr. A flow-through

Development of trace enrichment techniques for trace metals in natural waters using high pressure liquid chromatography

Creator:: Ambrose, Arthur Sigurd
Abstract:: An on-line trace enrichment (TE) system, based on high pressure liquid chromatogroaphy (HPLC) and flame atomic absorption (AA), has been developed for trace metal analysis. The sample is pumped through a column filled with a cation exchange resin which traps metal ions. The ions are subsequently stripped from the column...
Resource Type:: Dissertation
Full Text:: Chromatography Abstract approved: Redacted for Privacy James D. Ingle, Jr. An on-line trace enrichment (TE

Development of methodology and instrumentation for determination of chloroform in water

Creator:: Yang, Ying, 1969-
Resource Type:: Dissertation
Full Text:: the Determination of Chloroform in Water Abstract approved: James D. Ingle, Jr. Spectrophotometric

Analytical chemiluminescence measurements and instrumentation

Creator:: Marino, Dean Frank
Resource Type:: Dissertation
Full Text:: , voltage to frequency (V/F) peak area measurements, and photon counting (PC) peak area measurements, 2

Microcomputer-based fluorometric kinetic determination of ascorbic acid and flow injection analysis methods for interference correction and kinetic determinations based on the peak profile

Creator:: Chung, Hyung-Keun
Resource Type:: Dissertation
Full Text:: Determinations Based on the Peak Profile Redacted for privacy Abstract approved: James D. Ingle, Jr. A

Development of automated flow injection apparatus and a novel flow cell for chemi- and bioluminescence determinations

Creator:: Gander, Stuart C.
Abstract:: A practical and versatile instrument has been developed both to optimize the chemistry of bio- and chemiluminescence reactions and to measure ultra-trace quantities of associated analytes. The instrument consists of a pneumatic flow injection system linked to a detection cell and a signal processing and readout system. The disk-like cell...
Resource Type:: Masters Thesis
Full Text:: Determinations . Redacted for Privacy Abstract approved: Dr. James D. Ingle, Jr. A practical and versatile

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Creator:: Shaw, Subrata
Abstract:: This thesis describes the development of a new enantioselective synthetic method employing chiral cis-2,5-diaminobicyclo[2.2.2]octane-based organometallic catalysts. The significance of this new method to organic synthesis is illustrated with preparation of enantioenriched products that are transformed to important pharmaceutical agents. Chapter 1 provides a brief historical overview of asymmetric catalysis, especially...
Resource Type:: Dissertation
Full Text:: [2.2.2]octane: A Novel C2-Symmetric Scaffold for Asymmetric Catalysis Abstract approved: James D

Applications of redox indicators for evaluating redox conditions in environmental samples

Creator:: Jones, Brian Dion
Resource Type:: Dissertation
Full Text:: Evaluating Redox Conditions in Environmental Samples Abstract approved: James D. Ingle, Jr. Redox sensors

Fiber optic sensors and spectrometry for the detection of volatile gem-polyhalogenated hydrocarbons

Creator:: Louch, Jeff
Abstract:: A fiber optic fluorometer utilizing a double-fiber optic probe was constructed. The absolute fluorescence signal and effective collection efficiency are approximately one fifth those of typical cuvette fluorometers and agree with those predicted by theory. A quinine sulfate calibration curve shows linearity from a detection limit of 10 pg/mL to...
Resource Type:: Dissertation
Full Text:: Privacy James D. Ingle, Jr. A fiber optic fluorometer utilizing a double-fiber optic probe was

Formation of sulfenato and sulfinato cobalt (III) complexes by the oxidation of coordinated cysteine

Creator:: Sloan, Camilla Peel
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENTS I would like to express my appreciation to Dr. James H. Krueger for his advice and continued

Total synthesis of (-)-7-epicylindrospermopsin

Creator:: Hansen, Joshua D.
Abstract:: The first asymmetric synthesis of (-)-7-epicylindrospermopsin via intramolecular nitrone cycloaddition is described. The synthesis utilized a convergent approach to prepare the cycloaddition precursor 176, which was assembled by condensation of hydroxylamine 175 with aldehyde 145. Hydroxylamine 175 was synthesized from ethylene glycol (166) in seven steps. Aldehyde 145 was completed...
Resource Type:: Dissertation
Full Text:: approved: _____ } U ! James D. White The first asymmetric synthesis of (-)-7-epicylindrospermopsin via

Approaches to the synthesis of the macrolactone pyrrolizidine alkaloids (-)-integerrimine and (+)-usaramine

Creator:: Jayasinghe, Lalith Ratnasiri
Abstract:: A formal total synthesis of the macrolactone pyrolizidine alkaloid (-)-integerrimine (2), from R-(+)-citronellal (93) is described. Aldehyde 93 was converted to exo methylene derivative 94 which was reduced to allylic alcohol 95. The epoxides 96 and 98, obtained in a ratio of 3:1 respectively by Sharp less epoxidation of 95...
Resource Type:: Dissertation
Full Text:: . Redacted for privacy Abstract approved: James D. White A formal total synthesis of the macrolactone

Synthesis of a model of the spiroketal portion of avermectin B

Creator:: Warrier, Ulhas S.
Abstract:: Avermectin Bia is a member of a class of medicinally important natural products known for its potent antiparasitic activity and interesting structural features. In this thesis, synthesis of a model for the spiroketal portion of the avermectins is presented. Oxidation of (S)-2-methylbutanol, followed by a stereoselective chromium mediated reaction with...
Resource Type:: Masters Thesis
Full Text:: Bla Abstract approved: Redacted for privacy r Dr. James D. White Avermectin Bia is a member of a

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