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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
141

Synthesis and thermal decomposition of [CM(CO)CH₂S(Ph)CH₂CH=CH₂] BF₄, M=Fe, Ru

Bruno, Deborah Suzanne 12 1900 (has links)
No description available.
142

Photolysis of nitrile oxides : reactions of nitroso olefins. -

Zehetner, Werner. January 1970 (has links)
No description available.
143

The oxidation of olefins promoted by transition metal complexes

John, Robert Alun January 1981 (has links)
The oxidation of olefins by transition metal complexes leading to epoxide or ketonic products has been reviewed, with an emphasis on non-free radical processes. The formation of cycloadducts by reaction of <u>bis</u> (triphenylphosphine )- platinum(O)dioxygen with the α,β-unsaturated carbonyl compounds <u>trans</u> but-2-enal, propenal, cyclohex-2-en-1-one, <u>exo</u> 2-methvlenecyclohexan-1-one and 3-phenylprop- 2-enal was investigated by H- and <sup>31</sup>P- nuclear magnetic resonance (n.m.r.). The cycloadducts derived from <u>trans</u> but-2-enal and propenal were thermally unstable in solution and further reacted to form stable, isolable complexes. The mechanism by which the cycloadduct <u>cis</u> [4-<u>trans</u>(prop-2-enyl )-1,1-bis( triphenyl - phosphine)platina-2,3» 5-trioxacyclopentane] , I , was transformed into <u>cis</u> [<u>trans</u>- (5-formyl-4-methyl)-1,1-bis(triphenylphosphine )platina-2 t 3-dioxacyclopentane] , II , was investigated by H- and H-n.m.r. utilising <u>trans</u> 4-[<sup>2</sup>H<sub>3</sub>]but-2-enal. A mechanism which involved both exchange of free <u>trans</u> but-2-enal with I and reaction to give II was proposed; a computer model, based upon numerical integration of the alternative rate equations was in good agreement with this proposition. The chemical reactivity of II with a variety of reagents was explored. In particular, the reaction of II with trifluoroacetic acid gave <u>trans</u> 2-formyl- 3-methyloxirane in high yield and stereoselectivity. The dynamic behaviour of <u>cis</u>[<i>bis</u>(triphenylphosphine)(2<sub>3</sub>,3'-m)(<u>trans</u> - but-2-enal )platinum(0)] was observed by variable temperature P-n.m.r. and explained by the interconversion of carbonyl rotamers. The preparation of iridium(I) olefin and peroxo complexes has been described Chloro<u>bis</u> triphenylphosphine) (1,2-m) (ethene )dioxygen iridium( I) , III , and related complexes were found to oxidise terminal olefins to their methyl ketones stoichiometrically, by a non-free radical process. The mechanism has been discussed.
144

The attachment of dyes to amino acids / by Michael John Millan.

Millan, Michael John January 1996 (has links)
Bibliography: leaves 167-176. / viii, 176 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis aims to attach dyes to amino acids in a protein. The study examines the 1,4-addition (Michael type) of the nucleophilic groups present in a protein onto a conjugated alkyne reactive group bound to a dye moiety. The initial studies examine the reactivity of individual amino acids with nucleophilic side chains which are common in proteins towards conjugated alkynes. The second stage of the project requires the synthesis of a series of compounds such as those where a dye is attached to a conjugated alkyne via a spacer unit. The reactivity of these compounds with the individual amino acids is studied, as well as the attachment of compounds of this type to, initially, short peptides, and later to a protein such as wool. / Thesis (Ph.D.)--University of Adelaide, Dept. of Chemistry, 1997?
145

Some chemistry of metal alkynyls : formation of molecular squares / by Benjamin Craig Hall.

Hall, Benjamin Craig January 2000 (has links)
Includes a list of publications by the author arising from this thesis. / Bibliography: leaves 174-176. / 178 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Studies the reactivity of metal alkynyl fragments, in particular the formation of compounds containing two or more alkynes, resulting in the preparation of complexes with interesting properties and reactivities. / Thesis (Ph.D.)--Adelaide University, Dept. of Chemistry, 2001
146

The attachment of dyes to amino acids / by Michael John Millan.

Millan, Michael John January 1996 (has links)
Bibliography: leaves 167-176. / viii, 176 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis aims to attach dyes to amino acids in a protein. The study examines the 1,4-addition (Michael type) of the nucleophilic groups present in a protein onto a conjugated alkyne reactive group bound to a dye moiety. The initial studies examine the reactivity of individual amino acids with nucleophilic side chains which are common in proteins towards conjugated alkynes. The second stage of the project requires the synthesis of a series of compounds such as those where a dye is attached to a conjugated alkyne via a spacer unit. The reactivity of these compounds with the individual amino acids is studied, as well as the attachment of compounds of this type to, initially, short peptides, and later to a protein such as wool. / Thesis (Ph.D.)--University of Adelaide, Dept. of Chemistry, 1997?
147

Some chemistry of metal alkynyls : formation of molecular squares / by Benjamin Craig Hall.

Hall, Benjamin Craig January 2000 (has links)
Includes a list of publications by the author arising from this thesis. / Bibliography: leaves 174-176. / 178 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Studies the reactivity of metal alkynyl fragments, in particular the formation of compounds containing two or more alkynes, resulting in the preparation of complexes with interesting properties and reactivities. / Thesis (Ph.D.)--Adelaide University, Dept. of Chemistry, 2001
148

Novel luminescent cyclometalated gold (III) alkynyls design, synthesis, photophysics and their multinuclear assemblies /

Hung, Ling-ling. January 2007 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Also available in print.
149

Effect of process parameters on methanol to olefins reactions over SAPO catalysts

Jean, Luckner, Guin, J. A. January 2005 (has links)
Thesis--Auburn University, 2005. / Abstract. Vita. Includes bibliographic references (leaves 80-83).
150

The preparation of a metalloporphyrin-peptide conjugate artificial protein for the catalytic oxidation of alkenes /

Geier, George Richard. January 1997 (has links)
Thesis (Ph. D.)--University of Washington, 1997. / Vita. Includes bibliographical references (p. [201]-216).

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