{"id":35181,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/mecanismos-de-formacion-de-ciclos-de-cuatro-cinco-y-seis-centros-estudio-teorico\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"mecanismos-de-formacion-de-ciclos-de-cuatro-cinco-y-seis-centros-estudio-teorico","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/mecanismos-de-formacion-de-ciclos-de-cuatro-cinco-y-seis-centros-estudio-teorico\/","title":{"rendered":"Mecanismos de formacion de ciclos de cuatro, cinco y seis centros. estudio teorico."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Dimas Suarez Rodriguez <\/strong><\/h2>\n<p>El primer gran tema que se estudia, desde el punto de vista te\u00f3rico, en esta tesis es la reactividad peric\u00edclica del so2 con 1,3-dienos: se analizan las elevadas regio y estereoselectividades de diversas reacciones diels-alder, as\u00ed como la influencia de catalizadores \u00e1cidos, de distintos tipos de sustituyentes y del disolvente. Igualmente, se estudian reacciones quelotr\u00f3picas del so2 con 1,3-dienos, sus mecanismos y la posible competencia entre ambos tipos de reacciones peric\u00edclicas.  el segundo bloque tem\u00e1tico se dedica al estudio te\u00f3rico de una v\u00eda para sintetizar beta-tiolactamas, la adici\u00f3n (2+2) de tiocetenos e iminas, y otra para sintetizar ciano beta-lactamas, la apertura de precursores del tipo 4-azido-2-pirrolinona. En ambos casos se presentan los mecanismos en fase gas y en disoluci\u00f3n, comprob\u00e1ndose la participaci\u00f3n de intermedios zwitteri\u00f3nicos, y se racionaliza el efecto de sustituyentes donores y aceptores de densidad electr\u00f3nica.  los m\u00e9todos te\u00f3ricos utilizados son principalmente de tipo ab initio y, en algunas ocasiones, dft. Los resultados proporcionados por estos c\u00e1lculos se interpretan por medio de la t\u00e9cnica del an\u00e1lisis configuracional de los sistemas reactivos en t\u00e9rminos de los fragmentos que los componen.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Mecanismos de formacion de ciclos de cuatro, cinco y seis centros. estudio teorico.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Mecanismos de formacion de ciclos de cuatro, cinco y seis centros. estudio teorico. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Dimas Suarez Rodriguez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/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> Sordo Gonzalo Tomas Luis<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Estanislao Silla Santos <\/li>\n<li>Miquel Duran Portas (vocal)<\/li>\n<li>Antonio Oliva Cuy?s (vocal)<\/li>\n<li> Quirante Sanchez Jos\u00e9 Joaquin (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Dimas Suarez Rodriguez El primer gran tema que se estudia, desde el punto de vista te\u00f3rico, en [&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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