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Showing 1 to 6 of 6 for “"Ruthenium Hydride"”.
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Ruthenium Hydride Catalyzed Silylvinylation of Alkynes
<p>The intermolecular ruthenium hydride catalyzed coupling of internal alkynes with subsequent insertion of olefin acceptors is described. This approach utilizes a vinyl silicon tether to provide complete regiocontrol, a stereoselective anti-exo-dig cyclization which affords a tetrasubstituted …
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I. The Reaction of Carboxylic/Thiocarboxylic Acids with Isonitriles II. Ruthenium Hydride Ring Opening of an Azetidinium Cation
… the intermediate formimidate carboxylate mixed anhydrides (FCMAs), which leads to the undesired anhydride and formamide. With arylacetic acids, N-formylamides (the products of a unimolecular process) are obtained with low concentrations of the reactants and high reaction temperatures. At low …
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Ruthenium-Catalyzed Transformations for the Synthesis of Conjugated Dienes
… briefly discussed. Specifically, a synopsis of ruthenium-hydride catalysis for the formation of 1,3-dienes is presented. </p> <p> The development of the trans-silylvinylation of internal alkynes with acrylates and vinyl boronates to form conjugated dienes is discussed. This transformation was …
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Development of Improved Methodologies Toward the Formation of C-C and C-N Bonds
… be discussed in detail. </p> <p>In Chapter 3, ruthenium hydride-catalyzed silylvinylation of alkynes under an ethylene atmosphere has permitted the facile formation of highly functionalized diene systems. The synthesis of conjugated diene systems has been of great interest due to their …
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Rigid Ruthenium PCcarbeneP Complexes for Small Molecule Activation, Hydrogenation, and Dehydrogenation
… ligands are especially stable. Additionally, ruthenium catalysts have had a huge role in hydrogenation reactions and are prominently studied as catalysts for hydrogen storage using small molecules like carbon dioxide. This thesis presents the synthesis and application of ruthenium-based …
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Exploration of Transition Metal Catalyzed C−C and C−N Bond Formation to Access Synthetically Elusive Small Molecules
… of reactions discussed revolve especially around ruthenium and palladium catalysis, accessing underexplored heterocyclic motifs. The utility of these techniques toward the synthesis of small molecules in drug discovery cannot be understated, as there are few ways to access these elusive moieties. …