Designing bifunctional acid-base mesoporous hybrid catalysts for cascade reactions
[EN] Bifunctional mesoporous hybrid materials, containing both proton sponges and acid groups, have been prepared following different synthetic routes: co-condensation processes (sol-gel or micellar one-pot routes) or post-synthetic grafting of the organic functionalities. 1,8-Bis(dimethylamino)naph...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/66091 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/66091 |
| Access Level: | acceso abierto |
| Palabra clave: | Bond-forming reactions Silica nanoparticles Molecular-sieves Henry Reaction Organosilica Inhibitors System Condensation Selectivity Strategies QUIMICA ORGANICA |
| Sumario: | [EN] Bifunctional mesoporous hybrid materials, containing both proton sponges and acid groups, have been prepared following different synthetic routes: co-condensation processes (sol-gel or micellar one-pot routes) or post-synthetic grafting of the organic functionalities. 1,8-Bis(dimethylamino)naphthalene (DMAN), a proton sponge with high pK(a), was used as an organic functional builder base and 3-mercaptopropyltriethoxysilane (MPTES) as a pendant precursor of sulfonic acids. The bifunctional hybrid materials were extensively characterized and were investigated as heterogeneous catalysts for various one-pot C-C bond-forming cascade reactions such as deacetalization-Knoevenagel condensation or deacetalization-nitroaldol (Henry) reaction. |
|---|