{"id":54273,"date":"2018-03-09T22:42:00","date_gmt":"2018-03-09T22:42:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/reacciones-deshidro-diels-alder-de-sistemas-aril-y-heteroarilacetilenicos\/"},"modified":"2018-03-09T22:42:00","modified_gmt":"2018-03-09T22:42:00","slug":"reacciones-deshidro-diels-alder-de-sistemas-aril-y-heteroarilacetilenicos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/santiago-de-compostela\/reacciones-deshidro-diels-alder-de-sistemas-aril-y-heteroarilacetilenicos\/","title":{"rendered":"Reacciones deshidro diels-alder de sistemas aril- y heteroarilacetil\u00e9nicos"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Mart\u00ednez Esper\u00f3n Mar\u00eda Fernanda <\/strong><\/h2>\n<p>Se llev\u00f3 a cabo un estudio de la reacci\u00f3n deshidro diels-alder en diversos sistemas.     para el caso de la ciclaci\u00f3n de arilpropinonas se encontr\u00f3 la formaci\u00f3n de dos productos las benzo[b]fluorenonas (producto lineal) y las benzo[c]fluorenonas (productos traspuesto, formadas por transposici\u00f3n del aleno c\u00edclico inicialmente formado) cuya proporci\u00f3n depende de la naturaleza del sustituyente del arilo reactivo. As\u00ed se observ\u00f3 que existe una relaci\u00f3n entre la riqueza electr\u00f3nica del grupo arilo que reacciona y la transposici\u00f3n del aleno c\u00edclico. Cuanto mayor sea la riqueza electr\u00f3nica del arilo, que depende del tipo de sustituyente que posea, mayor es la proporci\u00f3n de las benzo[c]fluorenonas, originadas por la transposici\u00f3n al\u00e9nica, frente a las benzo[b]fluorenonas esperadas, e decir, sin transposici\u00f3n. Los sustituyentes en posici\u00f3n meta, cualquiera que sea su naturaleza electr\u00f3nica, favorecen la obtenci\u00f3n de benzo[b]fluorenonas. La sustituci\u00f3n en la posici\u00f3n orto y la elecci\u00f3n adecuada del disolvente permite elegir entre la obtenci\u00f3n de benzo[b]- o benzo[c]fluorenonas. Tambi\u00e9n se aplic\u00f3 la reacci\u00f3n a inmaidas permitiendo la obtenci\u00f3n de benzo[b]carbazoles, compuestos de gran importancia debido tanto a sus variadas actividades biol\u00f3gicas como a su utilidad para la s\u00edntesis de nuevos materiales org\u00e1nicos. se continu\u00f3 el estudio de ciclaciones dobles de tipo deshidro diels-alder, que permiten el acceso a sistemas biarilicos heteroc\u00edclicos presentes en la estructura de gran variedad de catalizadores quirales. para los estudios llevados a cabo en esta tesis se parti\u00f3 de sustancias comerciales econ\u00f3micas y se utiliz\u00f3 un m\u00e9todo de ciclaci\u00f3n t\u00e9rmico que evita el empleo de catalizadores met\u00e1licos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Reacciones deshidro diels-alder de sistemas aril- y heteroarilacetil\u00e9nicos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Reacciones deshidro diels-alder de sistemas aril- y heteroarilacetil\u00e9nicos <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Mart\u00ednez Esper\u00f3n Mar\u00eda Fernanda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/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>Carlos Sa\u00e1 Rodr\u00edguez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: domingo Dom\u00ednguez Francisco <\/li>\n<li>jean Rodr\u00edguez (vocal)<\/li>\n<li> Lete exp\u00f3sito Mar\u00eda esther (vocal)<\/li>\n<li> Gonz\u00e1lez d\u00edaz Jos\u00e9 Manuel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mart\u00ednez Esper\u00f3n Mar\u00eda Fernanda Se llev\u00f3 a cabo un estudio de la reacci\u00f3n deshidro diels-alder en diversos [&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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