{"id":54301,"date":"2018-03-09T22:42:00","date_gmt":"2018-03-09T22:42:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/catalizadores-heterogeneos-de-paladio-en-reacciones-de-formacion-de-enlace-carbono-carbono\/"},"modified":"2018-03-09T22:42:00","modified_gmt":"2018-03-09T22:42:00","slug":"catalizadores-heterogeneos-de-paladio-en-reacciones-de-formacion-de-enlace-carbono-carbono","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/catalizadores-heterogeneos-de-paladio-en-reacciones-de-formacion-de-enlace-carbono-carbono\/","title":{"rendered":"Catalizadores heterog\u00e9neos de paladio en reacciones de formaci\u00f3n de enlace carbono-carbono"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ana Mar\u00eda Primo Arnau <\/strong><\/h2>\n<p>La presente tesis doctoral trata sobre la s\u00edntesis, caracterizaci\u00f3n y utilizaci\u00f3n de catalizadores de especies de paladio, sobre diversos materiales, en reacciones de acoplamiento carbono-carbono. Se pretende, en general, la obtenci\u00f3n de catalizadores recuperables y reusables, con las consiguientes ventajas en t\u00e9cnicas de separaci\u00f3n de productos, dise\u00f1o del proceso catal\u00edtico y mejora en el impacto medioambiental del proceso.  en la presente tesis se emple\u00f3 una gran variedad de materiales, utilizando diferentes soportes (s\u00edlice amorfa y mesoporosa de alta superficie, zeolitas, sepiolitas y \u00f3xidos mixtos derivados de hidrotalcitas laminares) y diferentes formas de introducir el paladio en estos soportes (impregnaci\u00f3n a volumen de poro, intercambio i\u00f3nico o incorporaci\u00f3n de las nanopart\u00edculas de paladio en una matriz de s\u00edlice porosa obtenida por microemulsi\u00f3n).  en el caso de las reacciones de acoplamiento carbono-carbono de heck y suzuki, donde se requiere la presencia de una base, el gran hallazgo de nuestro trabajo fue conseguir, para \u00e9stas reacciones, catalizadores bifuncionales, es decir, que en el mismo soporte (zeolita o sepiolita), se inclu\u00edan los centros met\u00e1licos de paladio y los centros b\u00e1sicos. Adem\u00e1s, mediante la reacci\u00f3n sonda de reordenamiento del etilen acetal c\u00edclico de la 2-bromopropiofenona se comprob\u00f3 que, dependiendo del soporte utilizado, cambiaba la dureza\/blandura del paladio y por tanto su capacidad catal\u00edtica seg\u00fan los requerimientos de la reacci\u00f3n.  por otra parte, pd y cu soportados sobre \u00f3xidos mixtos derivados de hidrotalcitas laminares, demostraron ser eficientes catalizadores para la reacci\u00f3n de acoplamiento c-c de sonogashira. Es muy importante resaltar la verdadera heterogeneidad del material, comprobada por diversos m\u00e9todos (filtraci\u00f3n en caliente, prueba de las tres fases, an\u00e1lisis de paladio del s\u00f3lido reusado y an\u00e1lisis del metal en disoluci\u00f3n), lo cual hace que<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Catalizadores heterog\u00e9neos de paladio en reacciones de formaci\u00f3n de enlace carbono-carbono<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Catalizadores heterog\u00e9neos de paladio en reacciones de formaci\u00f3n de enlace carbono-carbono <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ana Mar\u00eda Primo Arnau <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/07\/2006<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Avelino Corma Canos<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel \u00e1ngel Miranda alonso <\/li>\n<li>roser Pleixats rovira (vocal)<\/li>\n<li> Orchilles balbastre antoni vicent (vocal)<\/li>\n<li>julia P\u00e9rez prieto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ana Mar\u00eda Primo Arnau La presente tesis doctoral trata sobre la s\u00edntesis, caracterizaci\u00f3n y utilizaci\u00f3n de catalizadores [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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