{"id":80583,"date":"2018-03-10T00:04:19","date_gmt":"2018-03-10T00:04:19","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-la-reaccion-de-cicloadicion-13-dipolar-de-2-amino-13-triazolio-4-olatos-tioisoma%c2%bcnchnonas\/"},"modified":"2018-03-10T00:04:19","modified_gmt":"2018-03-10T00:04:19","slug":"estudio-de-la-reaccion-de-cicloadicion-13-dipolar-de-2-amino-13-triazolio-4-olatos-tioisoma%c2%bcnchnonas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/estudio-de-la-reaccion-de-cicloadicion-13-dipolar-de-2-amino-13-triazolio-4-olatos-tioisoma%c2%bcnchnonas\/","title":{"rendered":"Estudio de la reacci\u00f3n de cicloadici\u00f3n 1,3-dipolar de 2-amino-1,3-triazolio-4-olatos (tioisom\u00c1\u00bcnchnonas)"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ignacio L\u00f3pez Mart\u00edn <\/strong><\/h2>\n<p>En esta tesis doctoral se investifa, tanto experimental como te\u00f3ricamente, la reactividad de 3-aril-5-fenil-2-(n-metil)bencilamino-1,3-tiazolio-4-olatos en procesos de cicloadici\u00f3n con aldeh\u00eddos, azocompuestos, olefinas y acetilenos.  en la cicloadici\u00f3n de las 3-aril-2-dialquilaminotioisom\u00ed\u00bcchnonas con aldeh\u00eddos arom\u00e1ticos se describre la obtenci\u00f3n de beta-lactamas y, seg\u00fan los casos, tiiranos. Con azocompuestos se obtienen triazinonas y tiadiazoles. Con alquenos se forman exclusivamente 4,5-dihidrotiofenos y con reactivos acetil\u00e9nicos se originan 2-piridonas, junto con tiofenos en algunas reacciones.  para explicar la formaci\u00f3n de uno u otro tipo de compuestos en las reacciones estudiadas se propone un mecanismo de reacci\u00f3n en el que el primer paso consiste en la formaci\u00f3n del cicloaducto inicial por un proceso [3+2], a continuaci\u00f3n el cicloaducto puede evoluciar mediante dos rupturas alternativas, dependiendo de la naturaleza de los substituyentes del heterociclo mesoi\u00f3nico. as\u00ed, en unos casos se rempoe el enlace carbono cabeza de puente-nitr\u00f3geno endocicl\u00edco y el intermedio se reordena originando las betas-lactamas, tiadiazoles, dihidrotiofenos, y tiofenos, seg\u00fan los reactivos; en otros casos se produce la escisi\u00f3n del enlace carbono cabeza de puente-azufre, dando lugar a un tiolado intermedio que evoluciona para formar los tiiranos, las triazinonas o las piridonas seg\u00fan los casos.  las asignaciones estructurales est\u00e1n apoyadas por an\u00e1lisis cristalogr\u00e1ficos de rayos-x de monocristal junto con datos espectrosc\u00f3picos de resonancia magn\u00e9tica nuclear e infrarrojo.  los c\u00e1lculos te\u00f3ricos semiemp\u00edricos (pm3), predicen la regioespecificidad y diastereoselectividad encontradas en los casos estudiados.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de la reacci\u00f3n de cicloadici\u00f3n 1,3-dipolar de 2-amino-1,3-triazolio-4-olatos (tioisom\u00c1\u00bcnchnonas)<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de la reacci\u00f3n de cicloadici\u00f3n 1,3-dipolar de 2-amino-1,3-triazolio-4-olatos (tioisom\u00c1\u00bcnchnonas) <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ignacio L\u00f3pez Mart\u00edn <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Extremadura<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 13\/09\/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>Reyes Babiano Caballero<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 vicente Sinisterra gago <\/li>\n<li>Jos\u00e9 Manuel Concell\u00f3n gracia (vocal)<\/li>\n<li>joaquin Plumet ortega (vocal)<\/li>\n<li>Jos\u00e9 Antonio Serrano bl\u00e1zquez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ignacio L\u00f3pez Mart\u00edn En esta tesis doctoral se investifa, tanto experimental como te\u00f3ricamente, la reactividad de 3-aril-5-fenil-2-(n-metil)bencilamino-1,3-tiazolio-4-olatos [&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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