{"id":27147,"date":"2018-03-09T09:19:17","date_gmt":"2018-03-09T09:19:17","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/transformaciones-altamente-selectivas-de-silanos-funcionalizados-alfa-beta-epoxiesteres-y-alfa-beta-epoxiamidas-mediante-el-empleo-de-diyoduro-de-samario\/"},"modified":"2018-03-09T09:19:17","modified_gmt":"2018-03-09T09:19:17","slug":"transformaciones-altamente-selectivas-de-silanos-funcionalizados-alfa-beta-epoxiesteres-y-alfa-beta-epoxiamidas-mediante-el-empleo-de-diyoduro-de-samario","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/oviedo\/transformaciones-altamente-selectivas-de-silanos-funcionalizados-alfa-beta-epoxiesteres-y-alfa-beta-epoxiamidas-mediante-el-empleo-de-diyoduro-de-samario\/","title":{"rendered":"\u00abtransformaciones altamente selectivas de silanos funcionalizados, alfa, beta- epoxiesteres y alfa, beta-epoxiamidas mediante el empleo de diyoduro de samario\u00bb"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Eva Bardales Santos <\/strong><\/h2>\n<p>En esta memoria de se describen nuevas aplicaciones en s\u00edntesis org\u00e1nica del diyoduro de samario, dedicando especial atenci\u00f3n a la preparaci\u00f3n de productos org\u00e1nicos a trav\u00e9s de procesos selectivos.  en el primer cap\u00edtulo se recogen los resultados obtenidos en la reacci\u00f3n de b-eliminaci\u00f3n de b-cloro-b-trialquilsilialcoholes o-acetilados provocada por sml2 obteni\u00e9ndose de esta forma (z)-vinilsilanos con alta o total diastereoselecci\u00f3n.  en el segundo cap\u00edtulo se describe la s\u00edntesis de \u00e9steres (e)-a,b-insaturados con alta o total diastereoselecci\u00f3n. A continuaci\u00f3n, se muestra la reacci\u00f3n secuencial de eliminaci\u00f3n-reducci\u00f3n de a,b-epoxi\u00e9steres promovida por diyoduro de samario, en presencia de agua, obteni\u00e9ndose \u00e9steres saturados. Si en un lugar de agua se emplea agua deuterada, se obtienen los correspondientes 2,3-dideuterio\u00e9steres.  en el tercer cap\u00edtulo se  describe la apertura reductiva de a,b-epoxiamidas producida por diyoduro de samario, en presencia de agua, obteni\u00e9ndose a-hidroxiamidas arom\u00e1ticas y b-hidroxiamidas alif\u00e1ticas. Cuando se emplea agua deuterada en lugar de agua, se obtienen las correspondientes b-deuterio-a-hidroxiamidas arom\u00e1ticas o a-deuterio-b-hidroxiamidas alif\u00e1ticas. Al cambiar el medio pr\u00f3tico en la apertura reductiva de a,b-epoxiamidas alif\u00e1ticas, empleando metanol, se obtienen a-hidroxiamidas alif\u00e1ticas. A continuaci\u00f3n, se describe la preparaci\u00f3n de a-hidroxiamidas b,y-insaturadas en las que el doble enlace c-c se genera con alta o total regioselectividad y e-diastereoselecci\u00f3n mediante el empleo de di- o triyoduro de samario catal\u00edtico. Tambi\u00e9n, se describe un m\u00e9todo one pot de s\u00edntesis de a-hidroxiamidas b,y-insaturadas, generando el diyoduro de samario en el medio de reacci\u00f3n a partir de samario metal y diyodometano. En los \u00faltimos apartados se muestra la s\u00edntesis de amidas (z)- y (e)-a,b-insaturadas con total o alta diastereoselecci\u00f3n y la s\u00edntesis de amidas sat<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>\u00abtransformaciones altamente selectivas de silanos funcionalizados, alfa, beta- epoxiesteres y alfa, beta-epoxiamidas mediante el empleo de diyoduro de samario\u00bb<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 \u00abtransformaciones altamente selectivas de silanos funcionalizados, alfa, beta- epoxiesteres y alfa, beta-epoxiamidas mediante el empleo de diyoduro de samario\u00bb <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Eva Bardales Santos <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 28\/11\/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>Jos\u00e9 Manuel Concell\u00f3n Gracia<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: josep Font cierco <\/li>\n<li>Miguel \u00e1ngel Yus astiz (vocal)<\/li>\n<li>Rafael Suau suarez (vocal)<\/li>\n<li>Jos\u00e9 Luis Chiara romero (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Eva Bardales Santos En esta memoria de se describen nuevas aplicaciones en s\u00edntesis org\u00e1nica del diyoduro de [&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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