Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"C-o Bond Formation"”.
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Palladium-catalyzed C-C, C-N and C-O bond formation
… are described. Key to the success of these transformations is the proper choice of ligand and reaction conditions. Palladium catalysts supported by bulky, monodentate phosphine ligands with a biaryl backbone or the bidentate ligand, Xantphos, effectively promote the formation of ca-aryl carbonyl …
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Palladium-Catalysed Functionalisation of Csp3–H Bonds Directed by Aliphatic Amines
Synthetic transformations on medicinally-relevant aliphatic amines are valuable in the diversification of molecules designed as pharmaceutical agents. This thesis describes two Csp3–H functionalisation reactions, using native amines (secondary and tertiary) to direct C–H activation. Chapter 2 …
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Meeting the challenges: carbon-hydrogen bond activation and cancer treatment
… in oxidative addition mediated C-C, and C-O bond formation processes as well as in C-Cl bond forming reactions via a reductive elimination process. Bis-NHC-Pd(II) complexes have been reported as effective catalysts to mediate direct conversion of methane into methanol. However, a H-D exchange …
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Development of copper-catalyzed enantioselective alkene difunctionalization reactions via radical intermediates
… redox radical addition mechanism, in which a C-0 bond is formed via the copper-mediated enantioselective trapping of a prochiral alkyl radical intermediate derived from the initial trifluoromethyl radical addition. Chapter 3 A general and versatile method for the catalytic enantioselective …
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Studies of the Mechanism of Carbon Oxygen Bond Formation in a Polyoxoanion-Supported Oxairidacyclobutane Complex
… of this research has been to understand the C-O bond formation mechanism of the oxametallacyclobutane complex, ((C$\sb8$H$\sb $O)Ir($\kappa\sp3$O-P$\sb3$O$\sb9$)) ((n-C$\sb4$H$\sb9)\sb4$N) $\sb2$ (2). The reaction of ((C$\sb8$H$\sb $)Ir($\kappa\sp3$O-P$\sb3$O$\sb9$)) ((n-C$\sb4$H$\sb9)\sb4$N) …
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Application of Pd Catalyzed Alkylation: Synthesis of Bicyclic Furans, Isoxazolines and New Cyclopentane Amino acid Analogs
… in various reactions such as C-C, C-N, C-O bond formation under mild conditions. The presence of abundant amount of palladium-chemistry related literature in the form of books, reviews emphasizes the growing importance of these reagents. Nowadays organopalladium chemistry is being used in …
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Oxidative reactivity of high-valent palladium complexes supported by 1,4,7-triisopropyl-1,4,7-triazacyclononane
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-08-01
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C—H oxidation reactions in complex molecule synthesis: application and development
… of complex molecules. Oxidation reactions of C–H bonds, particularly when applied at late-stages of complex molecule syntheses, hold special promise for achieving both these goals by minimizing the use of functional group manipulations typically required to synthesize these molecules. …
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High Valent Palladium Complexes and Their Role in C-C and C-X Bond Formation Chemistry.
… will come to a stall. According to the Energy Information Administration, in 2007 over 80 % of energy came from fossil fuel. When the fossil fuel will eventually run out at the current consumption rate, then what can we use for energy? While finding alternative energy sources is our ultimate …