{"id":44955,"date":"2019-02-03T02:21:33","date_gmt":"2019-02-03T02:21:33","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-teorico-de-reacciones-diels-alder-entre-derivados-monosubstituidos-del-butadieno-y-del-etileno\/"},"modified":"2019-02-03T02:21:33","modified_gmt":"2019-02-03T02:21:33","slug":"estudio-teorico-de-reacciones-diels-alder-entre-derivados-monosubstituidos-del-butadieno-y-del-etileno","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/estudio-teorico-de-reacciones-diels-alder-entre-derivados-monosubstituidos-del-butadieno-y-del-etileno\/","title":{"rendered":"Estudio teorico de reacciones diels-alder entre derivados monosubstituidos del butadieno y del etileno."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Antonio Oliva Cuy\u00c1\u00a0s <\/strong><\/h2>\n<p>Se ha realizado un estudio comparativo de la superficie de potencial de una serie de reacciones diels-alder entre derivados monosustituidos del butadieno y del etileno con objeto de estudiar la relacion endo-exo  los fenomenos de orientacion  la influencia de los sustituyentes sobre la oclocidad de la reaccion y el mecanismo de la misma. El calculo se ha realizado con metodos semiempiricos  oplimizando la geometria mediante un metodo de minimizacion de metrica variable. Para la reaccion butadieno+ etileno se ha encontrado que el estado de transiccion es asimetrico  cerrandose ambos enlaces dede forma asincrona. La introduccion de sustituyentes aumenta notablemente la asimetria del proceso  de manera que se cierra mas rapidamente el enlace entre los atomos de carbono no sustituidos  dando lugar al aducto erto. La barrera de potencial se modifica en buen acuerdo empirica de alder y la formacion del aducto erdo es ligeramente mas faborable que la del aducto exc.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio teorico de reacciones diels-alder entre derivados monosubstituidos del butadieno y del etileno.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio teorico de reacciones diels-alder entre derivados monosubstituidos del butadieno y del etileno. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Antonio Oliva Cuy\u00c1\u00a0s <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1978<\/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>Juan Bertr\u00e1n Rusca<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Fernandez Alonso Jos\u00e9 Ignacio <\/li>\n<li>Josep Font Cierco (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Costa Torres (vocal)<\/li>\n<li> Hernando Huelmo Jos\u00e9 Mar\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Antonio Oliva Cuy\u00c1\u00a0s Se ha realizado un estudio comparativo de la superficie de potencial de una serie [&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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