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The study of the isomerization of trans-3-acetoxy-2-bromocycloocteneLewis, Virginia Hill 01 January 1972 (has links)
No description available.
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Recent advances in the design, understanding and utilisation of free-radical homolytic substitution chemistry : a thesis presented for the degree of Doctor of Science in the Faculty of Science of the University of Adelaide / by Carl Herbert Schiesser.Schiesser, Carl Herbert. January 1999 (has links)
Includes bibliographical references. / 381 p. ; / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / A comprehensive study into the design, understanding and utilisation of free-radical homolytic substitution chemistry / Thesis (D.Sc.)--University of Adelaide, Dept. of Chemistry, 2000?
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Investigations into the mechanism of the photodechlorination of pentachlorobenzeneSchmidt, Robert Dean 31 May 1991 (has links)
Several experiments were undertaken to investigate the mechanism of
photodechlorination of pentachlorobenzene. The thermal methoxydechlorination
reaction of pentachlorobenzene was studied. In DMSO at 50 °C sodium
methoxide reacts smoothly with pentachlorobenzene to give three
tetrachloroanisole isomers. A second-order kinetic plot for this reaction is linear to
high precision, indicating that the reaction is second order overall. The rate of the
reaction and the product regioisomer distribution are not affected by the presence
of radical traps such as galvinoxyl, by reaction in the absence of oxygen or by
benzyne intermediate traps such as 1,3-diphenylisobenzofuran. The rate of the
reaction is reduced linearly as the starting mixture is diluted with methanol. These
facts suggest that the reaction follows the classical S[subscript N]Ar mechanism.
The proposed structure of the pentachlorobenzene radical anion formed by
photolysis in the presence of triethylamine is analogous to the σ-complex
intermediate in the S[subscript N]Ar reaction. The regiochemistry of these two types of
dechlorination was compared and showed a fair correlation. The differences in
regiochemistry were attributed to steric effects between the nucleophile and the
aromatic ortho chlorine atoms in the S[subscript N]Ar reaction.
Tetrachlorophenyl radicals were generated by thermal decomposition of
1 ,2,4,5-tetrachlorobenzeneazotriphenylmethane in the presence of CCl₄ and a
hydrogen atom donor. The selectivies of chlorine versus hydrogen or deuterium
atom abstraction were determined in several systems and applied to selectivity of
atom abstraction observed in photochemical experiments. The results support the
hypothesis that, in the photolysis of pentachlorobenzene in the presence of
triethylamine, the intermediate tetrachlorophenyl radical exists as an
unencumbered free radical rather than in a solvent caged pair with triethylamine.
It was anticipated that the rate of photodechlorination would increase in
micellar solutions if triethylamine was added. Experiments showed no such
expected increase in rate, and showed regiochemistry similar to that of the same
reaction in the absence of triethylamine. / Graduation date: 1992
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Part I. The identity of the chain propagating radical(s) in photoinitiated benzylic bromination by bromotrichloromethane ; Part II. Chlorine atom abstraction from α- and β-chloroepoxides by the triphenyltin radicalKrosley, Kevin W. 13 November 1991 (has links)
Graduation date: 1992
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The use of bulky ligands for the stabilization of group 15 radicals and cationsWiacek, Robert Johnny. January 2002 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
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Electronic spectroscopy of the alkoxy radicalsGopalakrishnan, Sandhya, January 2003 (has links)
Thesis (Ph. D.)--Ohio State University, 2003. / Title from first page of PDF file. Document formatted into pages; contains xxiv, 173 p.: ill. (some co.). Includes abstract and vita. Advisor: Terry A. Miller, Dept. of Chemistry. Includes bibliographical references (p. 171-173).
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Pharmacokinetics and metabolism of the reactive oxygen scavenger, [alpha]-phenyl-N-tert-butyl nitrone (PBN) and the effects of 3-nitropropionic acid in the Sprague-Dawley rat /Trudeau-Lame, Mary E. January 2002 (has links)
Thesis (M.S.)--Central Connecticut State University, 2002. / Thesis advisor: Michael A. La Fontaine. " ... in partial fulfillment of the requirements for the degree of Master in Natural Science-Chemistry." Includes bibliographical references (leaves 61-66). Also available via the World Wide Web.
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Ion radical cycloadditions and the synthesis of novel, electron-rich polymer structuresRoh, Yeonsuk 28 August 2008 (has links)
Not available / text
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The use of bulky ligands for the stabilization of group 15 radicals and cationsWiacek, Robert Johnny 09 May 2011 (has links)
Not available / text
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The rearrangement of 2,2-diphenyl-3-p̲-tolylpropyllithiumBrantley, Troy Ellis 08 1900 (has links)
No description available.
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