Chemistry: Recent submissions

Now showing items 366-370 of 897

    • The minor alkaloids of ipecacuanha 

      Davidson, George Cameron (University of St Andrews, 1964) - Thesis
      Ipecacuanha had been used for many years in medical practice before Rogers (1), in 1912, showed that emetine, one of the constituent alkaloids, was a specific agent against dysentery. This discovery, in relation to the ...

    • Studies of 6a-thiathiophthenes, 1,6,6a-triselenapentalenes, and related systems 

      Jackson, Michael George (University of St Andrews, 1973) - Thesis
      Reaction of hydrogen selenide with l-methyl (ene)-1,3-diones in ethanolic hydrogen chloride containing iron(III) chloride affords either bis(3-methyl(ene)-1,2-diselenolium)tetrachloroferrates (II) or tris(1-niethyl(ene)- ...

    • A potentiometric study of some solution equilibria involving biological ligands and transition metal ions 

      Makar, George Kamel Rizkalla (University of St Andrews, 1976) - Thesis
      The formation constants for several metal ion-ligand complexes have been measured by glass electrode potentiometry in aqueous solution at 37°C using an ionic background of 150mM sodium perchlorate. The three topics comprising ...

    • Conformational studies of heterocyclic compounds 

      Magennis, Isabel Mary (University of St Andrews, 1970) - Thesis
      Twelve heterocyclic ring compounds have been prepared and a high resolution Nuclear Magnetic Resonance study of each carried out. In particular, solvent effects and coupling constants have been studied. Some axial and ...

    • Natural and synthetic long-chained furanoid acids 

      Wijesundera, Rajendranath Chakrapani (University of St Andrews, 1978) - Thesis
      Fatty acids containing a furan ring system were recently discovered by North American Scientists in the liver and testicular lipids of northern pike. We developed an analytical procedure based on urea crystallization and ...