{"id":26825,"date":"2018-03-09T09:18:48","date_gmt":"2018-03-09T09:18:48","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/reacciones-en-cascada-de-alcoxi-carbenos-de-fischer-alfa-beta-insaturados-formacion-selectiva-de-anillos-de-tres-cinco-seis-y-siete-eslabones\/"},"modified":"2018-03-09T09:18:48","modified_gmt":"2018-03-09T09:18:48","slug":"reacciones-en-cascada-de-alcoxi-carbenos-de-fischer-alfa-beta-insaturados-formacion-selectiva-de-anillos-de-tres-cinco-seis-y-siete-eslabones","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/oviedo\/reacciones-en-cascada-de-alcoxi-carbenos-de-fischer-alfa-beta-insaturados-formacion-selectiva-de-anillos-de-tres-cinco-seis-y-siete-eslabones\/","title":{"rendered":"\u00abreacciones en cascada de alcoxi carbenos de fischer alfa, beta- insaturados: formacion selectiva de anillos de tres, cinco, seis y siete eslabones\u00bb"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Manuel Angel Fern\u00e1ndez Rodr\u00edguez <\/strong><\/h2>\n<p>La presente memoria describe los obtenidos en el desarrollo de la qu\u00edmica de los complejos carbeno de fischer i,i-insaturados.  en el cap\u00edtulo primero se emplean complejos alquenilcarbeno de fischer para acceder a pirrolidin-2-onas de forma regio- y diastereoselectiva a trav\u00e9s de la cicloadici\u00f3n 1,3-dipolar con iluros de azometino. Esta metodolog\u00eda se aplica a la s\u00edntesis de un compuesto con actividad farmacol\u00f3gica: el (+)-rolipram.  en el cap\u00edtulo segundo se aborda el estudio de la reactividad de complejos alquinilcarbeno de fischer con distintos tipos de orto-quinodimetanos. uno de ellos permite acceder a benzo[b]fluorenos, mediante un proceso t\u00e1ndem cicloadici\u00f3n [4+2]\/ciclopentanulaci\u00f3n o a nuevos complejos alquinilcarbeno en funci\u00f3n del complejo de partida empleado. Otro de los ortoquinodimetanos utilizados conduce a la formaci\u00f3n de carbociclos de siete eslabones a trav\u00e9s de una cicloadici\u00f3n formal [4+3].  el cap\u00edtulo tercero est\u00e1 dedicado a la reacciones en cascada de complejos alquinilcarbeno de fischer con olefinas biciclicas y otros reactivos (acetilenos internos o alquenos electr\u00f3nicamente ricos o neutros); estos procesos conducen a estructuras polic\u00edclicas altamente funcionalizadas mediante procesos multicomponente. Tambi\u00e9n en este cap\u00edtulo se presentan otras reacciones en cascada entre complejos alquinilcarbeno y acetilenos. Por \u00faltimo, se describe un proceso tipo pauson-kand catalizado por complejos de cromo y wolframio entre olefinas bic\u00edclicas y acetilenos.  finalmente, en el cuarto cap\u00edtulo se desarrolla el proceso de ciclopropanaci\u00f3n de complejos alquinilcarbeno de fischer con olefinas electr\u00f3nicamente deficientes, que resulta ser diastereoselectivo con alquenos terminales. Tambi\u00e9n se presentan otro tipo de reactividades con aldehidos y cetonas y se apunta una metodolog\u00eda para recuperar el fragmento met\u00e1lico del medio de reacci\u00f3n.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>\u00abreacciones en cascada de alcoxi carbenos de fischer alfa, beta- insaturados: formacion selectiva de anillos de tres, cinco, seis y siete eslabones\u00bb<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 \u00abreacciones en cascada de alcoxi carbenos de fischer alfa, beta- insaturados: formacion selectiva de anillos de tres, cinco, seis y siete eslabones\u00bb <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Manuel Angel Fern\u00e1ndez Rodr\u00edguez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/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 Joaquin Barluenga Mur<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: santos Fustero lardi\u00e9s <\/li>\n<li>nazario Martin leon (vocal)<\/li>\n<li>enrique Guitian rivera (vocal)<\/li>\n<li>Jes\u00fas Ezquerra carrera (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Manuel Angel Fern\u00e1ndez Rodr\u00edguez La presente memoria describe los obtenidos en el desarrollo de la qu\u00edmica 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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