{"id":25298,"date":"2003-12-09T00:00:00","date_gmt":"2003-12-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/pola%c2%admeros-en-litiaciones-catala%c2%adticas\/"},"modified":"2003-12-09T00:00:00","modified_gmt":"2003-12-09T00:00:00","slug":"pola%c2%admeros-en-litiaciones-catala%c2%adticas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/pola%c2%admeros-en-litiaciones-catala%c2%adticas\/","title":{"rendered":"Pol\u00edmeros en litiaciones catal\u00edticas"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pablo Candela Ant\u00f3n <\/strong><\/h2>\n<p>En la presente memoria se describe el uso de pol\u00edmeros en distintos procesos que tienen que ver con la formaci\u00f3n de intermedios organol\u00edticos, empleando la metodolog\u00eda puesta a punto en nuestro departamento consistente en la utilizaci\u00f3n de un exceso de litio met\u00e1lico y una cantidad catal\u00edtica de un areno.  en el primer cap\u00edtulo se describe la preparaci\u00f3n de distintos catalizadores polim\u00e9ricos, tanto solubles como insolubles, que pueden actuar como transportadores de electrones en los procesos de litiaci\u00f3n usando la metodolog\u00eda antes expuesta. La utilizaci\u00f3n de estos pol\u00edmeros ha sido estudiada en procesos como la formaci\u00f3n de intermedios organol\u00edticos funcionalizados, bien a partir de sustratos halogenados mediante intercambio hal\u00f3geno-litio, o mediante ruptura reductora de enlaces carbono-hetero\u00e1tomo. Tambi\u00e9n se ha estudiado la utilizaci\u00f3n de estos pol\u00edmeros en la activaci\u00f3n de n\u00edquel para su uso en la reducci\u00f3n de diversos sustratos org\u00e1nicos empleando hidr\u00f3geno molecular y la combinaci\u00f3n nicl2-li-areno.  en el segundo cap\u00edtulo se han preparado distintos soportes polim\u00e9ricos funcionalizados. Para ello, en primer lugar, se ha llevado a cabo la modificaci\u00f3n qu\u00edmica de una de las resinas comerciales m\u00e1s utilizadas en el campo de la s\u00edntesis en fase s\u00f3lida, la resina de merrifield, a trav\u00e9s de la formaci\u00f3n del correspondiente intermedio organol\u00edtico polim\u00e9rico, obtenido por intercambio cloro-litio empleando la metodolog\u00eda de litiaci\u00f3n consistente en un exceso de litio met\u00e1lico y una cantidad catal\u00edtica de un areno.  en una segunda parte, tambi\u00e9n se ha preparado un pol\u00edmero soluble conteniendo una estructura an\u00e1loga a la resina de merrifield, y se ha llevado a cabo su modificaci\u00f3n mediante la formaci\u00f3n del correspondiente intermedio organol\u00edtico para obtener, tras reacci\u00f3n con diferentes electr\u00f3filos, pol\u00edmeros funcionalizados solubles.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Pol\u00edmeros en litiaciones catal\u00edticas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Pol\u00edmeros en litiaciones catal\u00edticas <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pablo Candela Ant\u00f3n <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Alicante<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 12\/09\/2003<\/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>Miguel \u00e1ngel Yus Astiz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: carmen N\u00e1jera domingo <\/li>\n<li>Fernando Lopez ortiz (vocal)<\/li>\n<li>abruheiro Cavaleiro jose (vocal)<\/li>\n<li>Jos\u00e9 Luis Marco  contelles (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pablo Candela Ant\u00f3n En la presente memoria se describe el uso de pol\u00edmeros en distintos procesos que [&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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