{"id":40435,"date":"1999-01-01T00:00:00","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/nuevas-aplicaciones-sinteticas-del-ipy2bf4-reaccion-con-trialquilsililalquenos-terminales-creacion-de-enlaces-de-carbono-carbono-en-procesos-inter-e-intramoleculares\/"},"modified":"1999-01-01T00:00:00","modified_gmt":"1999-01-01T00:00:00","slug":"nuevas-aplicaciones-sinteticas-del-ipy2bf4-reaccion-con-trialquilsililalquenos-terminales-creacion-de-enlaces-de-carbono-carbono-en-procesos-inter-e-intramoleculares","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/nuevas-aplicaciones-sinteticas-del-ipy2bf4-reaccion-con-trialquilsililalquenos-terminales-creacion-de-enlaces-de-carbono-carbono-en-procesos-inter-e-intramoleculares\/","title":{"rendered":"Nuevas aplicaciones sinteticas del ipy2bf4: reaccion con trialquilsililalquenos terminales. creacion de enlaces de carbono-carbono en procesos inter- e intramoleculares."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Alvarez Garcia Lorenzo Jose <\/strong><\/h2>\n<p>En la presente memoria se estudia el comportamiento de alquenos y alquinos 1-heterosustituidos frente a tetrafluoroborato de bis (piridina) yodonio (i) (ipy2bf4).  en el cap\u00edtulo 1 se revisa la reactividad del ipy2bf4 frente a diversos sistemas insaturados.  en el cap\u00edtulo 2 se estudia la reacci\u00f3n del ipy2bf4 con trialquilsililaquenos terminales, que conduce la formaci\u00f3n de 1-yodoalquenos de forma regio- y estereoespec\u00edfica. Por otra parte, cuando la reacci\u00f3n se efect\u00faa en presencia de diferentes alcoholes, se suprime completamente la reacci\u00f3n de desililaci\u00f3n y se obtienen los correspondientes productos de yodofuncionalizaci\u00f3n de manera regio- y estereoesp\u00e9cifica. La deshidrohalogenaci\u00f3n de dichos productos de yodofuncionalizaci\u00f3n da lugar a enol \u00e9teres trisustituidos de configuraci\u00f3n definida.  en el cap\u00edtulo 3 se investigan nuevas reacciones de oligomerizaci\u00f3n de alquinos y alquenos promovidas por ipy2bf4. En primer lugar, se aborda la reacci\u00f3n de ipy2bf4 con alfa- -diinos sustituidos, que da lugar los productos de ciclaci\u00f3n intramolecular de acuerdo a un modelo de acoplamiento \u00abendo-exo\u00bb. A continuaci\u00f3n, se presenta el desarrollo de una versi\u00f3n intermolecular relacionada. Por \u00faltimo, se estudia la reacci\u00f3n de ipy2bf4 con un exceso de 1-yodoalquenos. Este proceso define el primer ejemplo de dimerizaci\u00f3n catal\u00edtica de yodoalquenos, de forma regioselectiva, seg\u00fan un modelo de acoplamiento cabeza-cola. El cap\u00edtulo incluye la caracterizaci\u00f3n de un intermedio clave en las reacciones de dimerizaci\u00f3n selectiva promovidas por ipy2bf4.#<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Nuevas aplicaciones sinteticas del ipy2bf4: reaccion con trialquilsililalquenos terminales. creacion de enlaces de carbono-carbono en procesos inter- e intramoleculares.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Nuevas aplicaciones sinteticas del ipy2bf4: reaccion con trialquilsililalquenos terminales. creacion de enlaces de carbono-carbono en procesos inter- e intramoleculares. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Alvarez Garcia Lorenzo Jose <\/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: javier Mendoza sans <\/li>\n<li>Miguel \u00e1ngel Peric\u00ed\u00a0s brondo (vocal)<\/li>\n<li>pedro Jos\u00e9 Campos Garc\u00eda (vocal)<\/li>\n<li>ricardo Perez afonso (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alvarez Garcia Lorenzo Jose En la presente memoria se estudia el comportamiento de alquenos y alquinos 1-heterosustituidos [&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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