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A study of the infrared intensities of some small molecular anions

Creator:: Pastorek, Christine
Resource Type:: Dissertation
Full Text:: Privacy 1 Dr. J. C. Decius In infrared reflectance experiments with single crystals, we have measured

Determination of chlorinated hydrocarbons by response factor calibration

Creator:: Ramus, Terry Lee
Resource Type:: Dissertation
Full Text:: approved: Lawrence C. Thomas A new method is developed and evaluated in this thesis research for

Carbene rearrangements : intramolecular interaction of a triple bond with a carbene center

Creator:: Dan̄ino, José C.
Abstract:: The tosylhydrazones of 2-heptanone, 4,4-dimethy1-2- heptanone, 6-heptyn-2-one and 4,4-dimethy1-6-heptyn-2- one were synthesized and decomposed under a variety of reaction conditions: dry lithium and sodium salt pyrolyses, sodium methoxide thermolyses in diglyme and photolyses of the lithium salt in tetrahydrofuran. The saturated analogues 2-heptanone tosylhydrazone and its 4,4-dimethyl isomer afforded the...
Resource Type:: Dissertation
Full Text:: triple bond with a carbene center An Abstract OF THE THESIS OF Jose C. Danino for the degree of

Metabolism of L-α-arginine in the biosynthesis of blasticidin S

Creator:: Woo, Nam-tae
Abstract:: Two labelled arginines, DL-[2,3,3,-²H₃]arginine, 8, and DL-[ ¹³C, 2-¹⁵N]arginine, 9, were synthesized. These were fed to cultures of Streptomyces griseochromogenes in order to probe the mechanism of the apparent arginine-2,3- aminomutase reaction occurring in biosynthesis of blasticidin S, 1. In previous studies of the enzymes lysine-2,3- aminomutase and tyrosine-2,3-aminomutase different...
Resource Type:: Masters Thesis
Full Text:: analyzed by high field NMR spectroscopy. We have found that an intramolecular migration of nitrogen from C

The photochemistry of polychlorobenzenes in micellar media

Creator:: Lee, Youn-Sik
Abstract:: Photolysis of pentachlorobenzene was carried out in the absence of an electron donor species at 254 nm in cetyltrimethylammonium bromide surfactant solution. The results are consistent with the excited triplet undergoing homolytic cleavage of a C-Cl bond in competition with formation of the excimer, in which the radical anion undergoes...
Resource Type:: Masters Thesis
Full Text:: solution. The results are consistent with the excited triplet undergoing homolytic cleavage of a C-Cl bond

Synthesis of two subunits of avermectin B1a

Creator:: Dantanarayana, Anura Pathmasiri
Abstract:: Avermectins are a group of potent anthelmintic agents produced by Streptomyces avermitilis. They are active at extremely low dosages and are now in commercial use. In this study, the synthesis of two segments of avermectin B[subscript 1a] are described. The synthesis of the hexahydrobenzofuran subunit (segment A) began with the...
Resource Type:: Dissertation
Full Text:: gave the key hexahydrobenzofuran building block 88. Stereoselective epoxidation of the C-617 olefin of

Selective detection for gas chromatography by ultraviolet spectrometry

Creator:: Van Engelen, Debra L.
Abstract:: Spectrometric detection systems for gas chromatography (GC) based on gas phase ultraviolet absorbance and fluorescence measurements have been developed and evaluated in this research. Polynuclear aromatic compounds (PNAs) are selectively detected by these systems. Limits of detection for PNAs range from 4 ng to 90 ng for absorbance determinations, and...
Resource Type:: Dissertation
Full Text:: -phase measurements (ca. 250°C) while preserving the resolution of the chromatographic separation and

Synthesis of substituted cyclooctatetraenide dianions ; Cycloheptadienyl complexes of the ḏ- and f̲-transistion elements ; Reactions of cyclohexanone with metal vapors

Creator:: Miller, Jeffrey Templeton
Abstract:: I. Lithium alkyl and aryl monosubstituted cyclooctatetraenide dianions (Li₂ C₈H₇-R; R = methyl, n- butyl, sec- butyl, tert- butyl, phenyl and benzyl) were synthesized by the reaction of the appropriate organolithium reagent with cyclooctatetraene in diethyl ether or tetrahydrofuran. The reaction occurred cleanly and with good yield of lithium monosubstituted...
Resource Type:: Dissertation
Full Text:: (Li 2 C 8 H 7 -R; R = methyl, n- butyl, sec- butyl, tert- butyl, phenyl and benzyl) were

Molecular orbital correlation of the relative rates of chlorine atom abstraction from homo- and heteroarylmethyl chlorides by triphenyltin radical

Creator:: Soppe-Mbang, Helene
Abstract:: A series of momochloromethyl arenes and heteroarenes have been reacted with triphenyltin hydride at 70° C. Under these radical conditions the only observable reaction is reduction of the starting material to arylmethane or heteroarylmethane. A significant range of relative rates (a factor of eighty) has been found among the compounds...
Resource Type:: Dissertation
Full Text:: ° C. Under these radical conditions the only observable reaction is reduction of the starting

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:: PC boards designed and manufactured in our laboratory (86-88). C. B. Elliott actively participated

ScholarsArchive@OSU

A study of the infrared intensities of some small molecular anions

Determination of chlorinated hydrocarbons by response factor calibration

Carbene rearrangements : intramolecular interaction of a triple bond with a carbene center

Metabolism of L-α-arginine in the biosynthesis of blasticidin S

The photochemistry of polychlorobenzenes in micellar media

Synthesis of two subunits of avermectin B1a

Selective detection for gas chromatography by ultraviolet spectrometry

Synthesis of substituted cyclooctatetraenide dianions ; Cycloheptadienyl complexes of the ḏ- and f̲-transistion elements ; Reactions of cyclohexanone with metal vapors

Molecular orbital correlation of the relative rates of chlorine atom abstraction from homo- and heteroarylmethyl chlorides by triphenyltin radical

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

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