{"id":40416,"date":"1999-01-01T00:00:00","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/boroxicarbenos-de-fischer-un-nuevo-tipo-de-complejos-con-reactividad-inusual\/"},"modified":"1999-01-01T00:00:00","modified_gmt":"1999-01-01T00:00:00","slug":"boroxicarbenos-de-fischer-un-nuevo-tipo-de-complejos-con-reactividad-inusual","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/boroxicarbenos-de-fischer-un-nuevo-tipo-de-complejos-con-reactividad-inusual\/","title":{"rendered":"Boroxicarbenos de fischer: un nuevo tipo de complejos con reactividad inusual."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Felix Rodr\u00edguez Iglesias <\/strong><\/h2>\n<p>El trabajo recogido en la presente memoria est\u00e1 dedicado al estudio de la s\u00edntesis y reactividad de complejos boroxicarbeno de fischer. Tambi\u00e9n se muestran los resultados de las reacciones de complejos alcoxicarbeno de fischer con borano.  en el primer cap\u00edtulo se describe la s\u00edntesis de nuevos complejos dialquil y diaminoboroxicarbeno y su transformaci\u00f3n en oxaborolanos, oxazaborolidinas, 1,3-dioles y 1,2- aminoalcoholes a trav\u00e9s de una reacci\u00f3n de inserci\u00f3n intramolecular c-h. La aplicaci\u00f3n secuencial de la hidroboraci\u00f3n y la inserci\u00f3n c-h permite la modificaci\u00f3n regio y diastereoselectiva de terpenos. Tambi\u00e9n se han podido obtener \u00e9teres tetrac\u00edclicos de forma enantioselectiva a partir de boroxicarbenos de ficher quirales derivados de terpenos.  en el segundo cap\u00edtulo se recogen los resultados obtenidos en la reacci\u00f3n de complejos alcoxicarbeno de fischer con borano y la posterior oxidaci\u00f3n con h2o2. Este proceso da lugar a alcoholes, 1,3-dioles o 3-hidroxicetonas de forma sencilla y eficaz.  finalmente, en el tercer cap\u00edtulo se describe la s\u00edntesis de nuevos complejos difluoroboroxicarbeno de fischer y su reacci\u00f3n de descomposici\u00f3n para generar radicales acilo. estos radicales acilo pueden sufrir reacciones de dimerizaci\u00f3n o bien pueden ser atrapados con olefinas electr\u00f3nicamente deficientes. Cuando la olefina utilizada es el metacrilato de metilo se obtienen derivados de ciclohexanos o ciclopentanos altamente funcionalizados. Por otra parte, se describe la s\u00edntesis diastereoselectiva de 3-hidroxicetonas a trav\u00e9s de una reacci\u00f3n de acoplamiento de tres componentes.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Boroxicarbenos de fischer: un nuevo tipo de complejos con reactividad inusual.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Boroxicarbenos de fischer: un nuevo tipo de complejos con reactividad inusual. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Felix Rodr\u00edguez Iglesias <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1999<\/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>Jos\u00e9 Joaquin Barluenga Mur<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: julio Delgado mart\u00edn <\/li>\n<li>Miguel \u00e1ngel Esteruelas rodrigo (vocal)<\/li>\n<li>gregorio Asensio aguilar (vocal)<\/li>\n<li>Jes\u00fas Mar\u00eda Aizpurua iparraguirre (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Felix Rodr\u00edguez Iglesias El trabajo recogido en la presente memoria est\u00e1 dedicado al estudio de la s\u00edntesis [&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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