Synthesis of dinuclear complexes. From ligand design to catalysis
Homogeneous catalysis is a useful synthetic tool in the chemical industry. Several products, for instance in fine chemicals were prepared by metal-catalyzed reactions. Usually the catalysts are mononuclear complexes containing diphosphine ligands generally coordinated in a cis fashion. This thesis f...
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| Formato: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | España |
| Recursos: | Universitat Rovira i virgili (URV) |
| Repositorio: | Repositori Institucional de la Universitat Rovira i Virgili |
| OAI Identifier: | oai:urv.cat:TDX:1260 |
| Acesso em linha: | https://hdl.handle.net/20.500.11797/TDX1260 http://hdl.handle.net/10803/126531 |
| Access Level: | acceso abierto |
| Palavra-chave: | 547 - Química orgànica 546 - Química inorgànica 54 - Química |
| Resumo: | Homogeneous catalysis is a useful synthetic tool in the chemical industry. Several products, for instance in fine chemicals were prepared by metal-catalyzed reactions. Usually the catalysts are mononuclear complexes containing diphosphine ligands generally coordinated in a cis fashion. This thesis focused in the development and application in catalysis of new nitrogen ligands which form trans or dinuclear metal complexes. Coordination complexes with bidentate ligands were applied in several metal catalyzed reactions, for example asymmetric alkene hydrogenation and asymmetric acetophenone hydrosilylation with rhodium. They were also applied in the oxidation of meso-diols with copper and iron. Multinuclear complexes were prepared for iron and zinc with tetradentate ligands. These complexes were applied in different catalytic transformations, for instance, the synthesis of cyclic carbonates from carbon dioxide and epoxides. C–H catalytic oxidation was explored with the dinuclear iron complexes. |
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