{"id":16493,"date":"2018-03-09T09:04:08","date_gmt":"2018-03-09T09:04:08","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/aplicacion-de-o-y-n-radicales-a-la-qua%c2%admica-de-carbohidratos\/"},"modified":"2018-03-09T09:04:08","modified_gmt":"2018-03-09T09:04:08","slug":"aplicacion-de-o-y-n-radicales-a-la-qua%c2%admica-de-carbohidratos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/aplicacion-de-o-y-n-radicales-a-la-qua%c2%admica-de-carbohidratos\/","title":{"rendered":"Aplicaci\u00f3n de o-y n-radicales a la qu\u00edmica de carbohidratos"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Herrera Gonz\u00e1lez Antonio  Jes\u00fas <\/strong><\/h2>\n<p>En esta tesis se ha demostrado la utilidad de la reacci\u00f3n de aih en la s\u00edntesis c\u00edclicos 2,7-dioxabiciclo[2.2.1] heptano, 6,8-dioxabiciclo[3.2.1]octano, 8-oxa-6-azabiciclo[3.2.1]octano, 7-oxa-2-azabiciclo[2.2.1]heptano, 2,9-dioxabiciclo[3.3.1]nonano y 7a-metoxihexahidro-2h-furo[3,2-b]pirano.  los productos obtenidos son interesantes como potenciales sintones quiroles en la s\u00edntesis de mol\u00e9culas m\u00e1s complejas. Como se puede observar, la reacci\u00f3n tambi\u00e9n puede ser \u00fatil para la oxidaci\u00f3n selectiva de carbonos espec\u00edficos en carbohidratos, siendo un procedimiento muy suave para la s\u00edntesis de ulosas protegidas, las cuales no son f\u00e1cilmente accesibles por otros m\u00e9todos.  se ha desarrollado una teor\u00eda que explica razonablemente el mecanismo de la reacci\u00f3n, con el objetivo de poder predecir con anticipaci\u00f3n lo que ocurrir\u00e1 en otros ejemplos no ensayados, haciendo uso de herramientas f\u00e1cilmente accesibles como son los programas de mec\u00e1nica molecular.  la suavidad de las condiciones de reacci\u00f3n nos permite trabajar con sustratos que poseen una gran variedad de grupos funcionales, tales como \u00e9sters, carbonatos, dobles enlaces, o-bencilos, isopropilidenos, nitrilos,etc.  se ha descrito por primera vez la formac\u00f3n de n-radicales a partir de carbamatos, siendo \u00e9stos los grupos protectores m\u00e1s usados en s\u00edntesis org\u00e1nica para el grupo amino, que junto al uso de fenil y bencilfosforamidas nos abre muchas posibilidades para posteriores transformaciones de los sintones obtenidos.  se ha demostrado que se puede tener control en la regioselectividad del proceso, con el uso de diferentes grupos protectores muy comunes en la qu\u00edmica de los carbohidratos.  en el cap\u00edtulo 4 hemos demostrado la posibilidad de modificar una unidad de az\u00facar desde la otra unidad en un disac\u00e1rido d-glc-a1&#8212;&gt;4-d-glc. El compuesto l-ido-b1&#8211;&gt;4-d-glc puede ser de inter\u00e9s en la qu\u00edmica de los an\u00e1logos de la heparina, ya que la unidad l-idur<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Aplicaci\u00f3n de o-y n-radicales a la qu\u00edmica de carbohidratos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Aplicaci\u00f3n de o-y n-radicales a la qu\u00edmica de carbohidratos <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Herrera Gonz\u00e1lez Antonio  Jes\u00fas <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 La laguna<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 19\/04\/2002<\/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>Cosme Garc\u00eda Francisco<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: mat\u00edas L\u00f3pez rodr\u00edguez <\/li>\n<li>ricardo Alonso alonso (vocal)<\/li>\n<li>Antonio Garrido montalb\u00e1n (vocal)<\/li>\n<li>elisa Le\u00f3n alonso (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Herrera Gonz\u00e1lez Antonio Jes\u00fas En esta tesis se ha demostrado la utilidad de la reacci\u00f3n de aih [&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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