{"id":53176,"date":"2018-03-09T22:40:48","date_gmt":"2018-03-09T22:40:48","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/coordinacion-y-reactividad-de-ligandos-difosfinocetenimina\/"},"modified":"2018-03-09T22:40:48","modified_gmt":"2018-03-09T22:40:48","slug":"coordinacion-y-reactividad-de-ligandos-difosfinocetenimina","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/coordinacion-y-reactividad-de-ligandos-difosfinocetenimina\/","title":{"rendered":"Coordinacion y reactividad de ligandos difosfinocetenimina"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Marta Perez Gonzalo <\/strong><\/h2>\n<p>La presente tesis doctoral se centra en el estudio de la reactividad de ligandos difosfinocetenimina de f\u00f3rmula (pph2)2c=c=nr, tanto libres como coordinados a diferentes centros met\u00e1licos. As\u00ed, la reacci\u00f3n del ligando libre con olefinas electr\u00f3nicamente deficientes transcurre a trav\u00e9s de una cicloadici\u00f3n [3+2], donde la difosfinocetenimina act\u00faa como 1,3 dipolo, para generar nuevos fosfaheterociclos de tipo  5-fosfol. Por su parte, las difosfinoceteniminas n-ar\u00edlicas participan en una reacci\u00f3n multicomponente con isocianuros y agua o alcoholes, formando derivados  5-azafosfoleno. se han obtenido tambi\u00e9n ligandos monofosfinocetenimina, a partir de las difosfinoceteniminas correspondientes, mediante oxidaci\u00f3n o eliminaci\u00f3n de uno de los grupos difenilfosfino, y se ha analizado su reactividad en cicloadiciones con mol\u00e9culas insaturadas y su capacidad coordinativa. se ha estudiado asimismo la capacidad coordinativa de las difosfinoceteniminas frente a una variedad de iones met\u00e1licos (cu(i), ag(i), au(i), pd(ii), ru(ii), mo(0)), lo que ha permitido la s\u00edntesis de complejos mono- y polimet\u00e1licos que contienen grupos funcionales cetenimina perif\u00e9ricos. Estos grupos funcionales reaccionan con diferentes bases como agua, alcoholes, aminas y metil litio, lo que conduce a la formaci\u00f3n de difosfinas funcionalizadas del tipo difosfinoamida, difosfinoimino\u00e9ster, difosfinoamidina y difosfinoenamina, algunas de ellas quirales, que pueden ser liberadas del centro met\u00e1lico con excelentes rendimientos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Coordinacion y reactividad de ligandos difosfinocetenimina<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Coordinacion y reactividad de ligandos difosfinocetenimina <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Marta Perez Gonzalo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 16\/06\/2006<\/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> Ruiz Pastor Francisco Javier<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: victor Riera gonz\u00e1lez <\/li>\n<li> Martinez de ilarduya Martinez de ilarduya Jos\u00e9 Mar\u00eda (vocal)<\/li>\n<li>Jos\u00e9 oriol Rossell alfonso (vocal)<\/li>\n<li>roberto Quesada pato (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Marta Perez Gonzalo La presente tesis doctoral se centra en el estudio de la reactividad de ligandos [&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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