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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.
391

Synthesis of iron carbonyl derivatives of some organic disulfides

Lopez, Orosman, 1945- January 1981 (has links)
No description available.
392

Synthesis of highly substituted heterocycles : the oxazolomycins

Trippier, Paul Charles January 2006 (has links)
This thesis is concerned with studies towards the total synthesis of a class of natural products - the oxazolomycins. Attention was focused on the left-hand side triene fragment and right-hand side lactam heterocyclic system. This thesis describes the synthesis of a racemic terminal phenyl analogue of oxazolomycin A and C, possessing the left-hand side triene geometry as required. A novel truncated pyridine analogue is also described. The molecules represent a racemic total synthesis of analogues of phthoxazolin A and inthomycins B and C. The synthesis is based upon a crucial Stille cross-coupling reaction between stannane and diene iodide fragments. The stannane fragment was synthesised using literature precedented methods and the vinyl halide prepared using a highly stereoselective Wittig, Takai homologation or Stork reaction leading to a variety of ratios of mixtures of Z, E and E, E diene halides. These investigations led to the availability of 1:1, 3:1 and 1:3 mixtures of Z, Z, E : Z, E, E left hand side triene fragments possessing the required stereochemistries for oxazolomycin A and C. Utilising existing methodology developed in the Moloney group, investigations were carried out towards construction of β-keto esters possessing terminal hydroxyl functions, suitable for diastereoselective aldol ring closure. Following extensive protecting group manipulation and N-acylation coupling optimisation, a TIPS protected β-keto acid, existing as predominantly the keto tautomer, was successfully coupled to an oxazolidine heterocycle. This N-acylated oxazolidine upon Dieckmann cyclisation would present an advanced intermediate of opposite configuration (Lserine is used here as a cheaper starting material for the construction of the oxazolidine instead of D-serine) to the oxazolomycin right-hand side.
393

The synthesis of alkenes from carbonyl compounds and carbanions alpha to silicon /

Mychajlowskij, Volodymyr Walter January 1977 (has links)
No description available.
394

The preparation and characterization of cyclopendatienyl-triacarbnyl-tungsten complexes containing catenated polysulfur ligands /

Hartgerink, Judy. January 1981 (has links)
No description available.
395

Reactions of some silyl organometallic compounds : Pt. II. Elucidation of the structure of gomatine, a compound having antihistaminic activity, extracted from crown gall tumors of tomato plants.

Vinokur, Anna Ella. January 1971 (has links)
No description available.
396

Experimental studies in the isomerism and structural variations in molybdenum and rhenium halo-compounds / Ian Robert Anderson.

Anderson, Ian Robert January 1968 (has links)
Includes bibliography. / 111 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physical and Inorganic Chemistry, 1968
397

Copper (II) complexes of N-acylhydrazine and polymethylene-N, N-diacyldihydrazine ligands / Richmond J. Baker

Baker, Richmond Jeffrey January 1966 (has links)
Typescript / Includes bibliographical references / 250 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physical and Inorganic Chemistry, 1967
398

A study of ligand substitution reactions in the five coordinate complexes, [Cu (TREN)OH2]2+ [Cu (Me6 TREN)OH2]2+ and [Cu (Me6 TREN)OH] +

Collins, Peter Ralph January 1979 (has links)
ii, 137 leaves : ill., graphs, tables ; 31 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physical and Inorganic Chemistry, 1980
399

Solvent exchange on the dioxouranium VI ion

Honan, Geoffrey James January 1979 (has links)
75 leaves : graphs ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.1980) from the Dept. of Physical and Inorganic Chemistry, University of Adelaide
400

New developments in the coordination chemistry of gold(1), gold(II) and gold(III) with C-, N-, P-and S-Donor ligands /

Coetzee, Jacorien. January 2007 (has links)
Thesis (MSc)--University of Stellenbosch, 2007. / Bibliography. Also available via the Internet.

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