{"id":78557,"date":"2006-06-02T00:00:00","date_gmt":"2006-06-02T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/tautomeria-y-reactividad-de-2-alquiltioisoma%c2%bcnchnonas\/"},"modified":"2006-06-02T00:00:00","modified_gmt":"2006-06-02T00:00:00","slug":"tautomeria-y-reactividad-de-2-alquiltioisoma%c2%bcnchnonas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/extremadura\/tautomeria-y-reactividad-de-2-alquiltioisoma%c2%bcnchnonas\/","title":{"rendered":"Tautomer\u00eda y reactividad de 2-alquiltioisom\u00c1\u00bcnchnonas"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jes\u00fas D\u00edaz \u00e1lvarez <\/strong><\/h2>\n<p>En esta tesis se demuestra la participaci\u00f3n de estructuras tautom\u00e9ricas en las propiedades de los compuestos mesoi\u00f3nicos, tomando como ejemplo las 2-alquiltioisom\u00ed\u00bcnchnonas.     el desarrollo del trabajo comienza con la exploraci\u00f3n de una nueva s\u00edntesis general y sencilla de 2-alquiltioisom\u00ed\u00bcnchnonas y, posteriormente, con el estudio espectrosc\u00f3pico y computacional de los eventuales equilibrios tautom\u00e9ricos (y atropisom\u00e9ricos) que pueden mostrar. Se describe un equilibrio tautom\u00e9rico general entre los sistemas de 2-alquiltioisom\u00ed\u00bcnchnonas y 2-alquilid\u00e9n-1,3-tiazolid\u00edn-4-onas, que es observable espectrosc\u00f3picamente en disoluci\u00f3n. La cristalizaci\u00f3n de tiazolidinas puras ha permitido su caracterizaci\u00f3n en estado s\u00f3lido. por otra parte, cuando la estructura incluye sustituyeres n-ar\u00edlicos orto-disustituidos, se observa tambi\u00e9n rotaci\u00f3n restringida en torno a este enlace. cuando se hacen reaccionar con haluros de alfa-halo\u00e1cidos tioformanilidas, en lugar de tiocarboxanilidas, para acceder as\u00ed a tioisom\u00ed\u00bcnchnonas no sustituidas en la posici\u00f3n 2, se obtienen en cambio tioimidas mixtas en la que se ha producido la acilaci\u00f3n del nitr\u00f3geno, y que no evolucionan a tioisom\u00ed\u00bcnchnonas en las condiciones de reacci\u00f3n.     tambi\u00e9n hemos estudiado la reactividad de 2-alquiltioisom\u00ed\u00bcnchonas en relaci\u00f3n con diversos objetivos. las 2-alquiltioisom\u00ed\u00bcnchonas reaccionan generando uniones c-c con electr\u00f3filos como cloruros de acilo alif\u00e1cticos, isocianatos e isotiocianatos, para dar 2-acil, 2-carboxamido- \u00f3 2-tiocarboxamido-alquilid\u00e9n-1,3-tiazolid\u00edn-4-onas, respectivamente. En contraposici\u00f3n reaccionan con cloruros de acilo arom\u00e1ticos produciendo 2-diacilmetiltioisom\u00ed\u00bcnchonas. adem\u00e1s, con bromo genera una halohidrina.     las 2-alquiltioisom\u00ed\u00bcnchnonas reaccionan tambi\u00e9n con nucle\u00f3filos como alcoholes, tioles, \u00e1cidos carbox\u00edlicos, etc. El resultado de la reacci\u00f3n puede racionalizarse en proceso que se inician con la adici\u00f3n al doble enlace 3<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Tautomer\u00eda y reactividad de 2-alquiltioisom\u00c1\u00bcnchnonas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Tautomer\u00eda y reactividad de 2-alquiltioisom\u00c1\u00bcnchnonas <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jes\u00fas D\u00edaz \u00e1lvarez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Extremadura<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 06\/02\/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>Reyes Babiano Caballero<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jose Fuentes mota <\/li>\n<li>pedro Cintas moreno (vocal)<\/li>\n<li>Fernando Coss\u00edo mora (vocal)<\/li>\n<li>Jos\u00e9 Albertino figueiredo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jes\u00fas D\u00edaz \u00e1lvarez En esta tesis se demuestra la participaci\u00f3n de estructuras tautom\u00e9ricas en las propiedades 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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