Thesis (Ph. D.)--Worcester Polytechnic Institute. / Keywords: deactivation; hysteresis; kinetics; structure sensitivity; methane oxidation on palladium. Includes bibliographical references (p. 150-158).

Thesis (Ph. D.)--Michigan State University. Chemistry, 2008. / Title from PDF t.p. (Proquest, viewed on Aug. 17, 2009) Includes bibliographical references. Also issued in print.

Thesis (Ph.D.) - University of St Andrews, May 2009. / Restricted until 11th May 2011.

The main objective of this investigation was to study palladium-catalyzed coupling of 2-aryl-4-chloro-3-iodoquinolines with phenyl boronic acid in order to assess the regioselectivity of carbon-carbon bond formation at either C3 or C4. The 2-aryl-4- chloro-3-iodoquinolines were subjected to Pd(PPh3)4-catalyzed coupling reaction with phenyl boronic acid in DMF in the presence of 2M sodium carbonate (aq) to afford 2,3-diaryl-4-chloroquinolines. Reaction of 2,3-diaryl-4-chloroquinolines with sodium methoxide in MeOH-DMF mixture under reflux afforded the corresponding 2,3-diaryl-4-methoxyquinoline. An alternative route to the latter involving palladiumcatalyzed cross-coupling reaction of 2-aryl-3-iodo-4-methoxyquinolines derived from the reaction of 2-aryl-4-chloro-3-iodoquinolines with sodium methoxide in refluxing methanol-THF mixture was also investigated. The 2,3-diaryl-4-methoxyquinolines were subjected to further studies of chemical transformation with boron tribromide to afford the corresponding 2,3-diarylquinolin-4(1H)-ones. All new compounds were characterized using a combination of NMR (1H and 13C), IR and mass spectroscopic techniques as well as elemental analysis. / Chemistry / M. Sc. (Chemistry)

No description available.

Prof. A. Roodt

A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy in Chemistry. Johannesburg, 2015. / The selective hydrogenation of cinnamaldehyde (CALD), an α,β-unsaturated aldehyde, at the carbonyl (C=O) and olefinic (C=C) groups is an important reaction since its products mainly cinnamyl alcohol (CA) and hydrocinnamaldehyde (HCALD) are important intermediates for the production of many chemicals in a wide range of industries (pharmaceuticals, flavouring, agrochemicals, perfume). In this study the synthesis of nitrogen doped carbon spheres (NCSs) as catalyst supports for the hydrogenation of CALD is reported. At the heart of the hydrogenation of CALD is the catalyst, since it provides the surface for the various reactions to take place. In this study, an in-depth study was conducted on the NCSs support, by varying pyrolysis time, pyrolysis temperatures and flow rates of gases to determine the physical and chemical properties. The effects of chemically modifying the surfaces of the NCS supports by functionalization with acid and doping with carbon were also investigated. NCSs which had undergone different pre-treatments procedures were then deposited with Pd nanoparticles using different metal deposition methods and the resultant catalysts tested for the hydrogenation of CALD.

No description available.

by Lai Chi Wai. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 63-68). / Abstracts in English and Chinese. / Table of Contents --- p.i / Acknowledgments --- p.iii / Abbreviations --- p.iv / Abstract --- p.v / Chapter Chapter 1 --- General introduction / Chapter 1.1 --- Background of phosphines and arsines ligands in metal catalysis --- p.1 / Chapter 1.2 --- Electronic effect of phosphines and arsines ligands in metal catalysis --- p.2 / Chapter 1.3 --- Synthesis of Aryl Phosphines --- p.7 / Chapter 1.4 --- Synthesis of Aryl Arsines --- p.9 / Chapter 1.5 --- The objective of this work --- p.11 / Chapter Chapter 2 --- Palladium catalyzed phosphination of aryl triflates / Chapter 2.1 --- Synthesis of aryl triflates --- p.12 / Chapter 2.2 --- Palladium catalyzed phosphination of aryl triflates --- p.15 / Chapter 2.3 --- Mechanistic studies of phosphination --- p.19 / Chapter Chapter 3 --- Palladium catalyzed arsination of aryl triflates --- p.22 / Chapter 3.1 --- Solvent and catalyst screening in palladium catalyzed arsination --- p.23 / Chapter 3 2 --- Stoichiometry of triphenylarsine --- p.24 / Chapter 3.3 --- Temperature effect of arsination --- p.25 / Chapter 3.4 --- Results of palladium catalyzed arsination --- p.26 / Chapter 3.5 --- Mechanistic studies of arsination --- p.28 / Chapter Chapter 4 --- Green chemistry approach 一 solventless phosphination and arsination / Chapter 4.1 --- Introduction to green chemistry --- p.30 / Chapter 4.2 --- Results of solventless phosphination --- p.31 / Chapter 4.3 --- Results of solventless arsination --- p.33 / Conclusion --- p.36 / Experimental --- p.37 / Reference --- p.63

Thesis (Ph. D.)--West Virginia University, 2001. / Title from document title page. Document formatted into pages; contains x, 83 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 75-78).