{"id":81331,"date":"2018-03-10T00:05:14","date_gmt":"2018-03-10T00:05:14","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/n-aminidas-de-alcoxicarbonilcicloimonio-a13-o-14-dipolos-sintesis-y-reactividad-de-nuevas-heterobetaa%c2%adnas-mesomericas-conjugadas\/"},"modified":"2018-03-10T00:05:14","modified_gmt":"2018-03-10T00:05:14","slug":"n-aminidas-de-alcoxicarbonilcicloimonio-a13-o-14-dipolos-sintesis-y-reactividad-de-nuevas-heterobetaa%c2%adnas-mesomericas-conjugadas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/n-aminidas-de-alcoxicarbonilcicloimonio-a13-o-14-dipolos-sintesis-y-reactividad-de-nuevas-heterobetaa%c2%adnas-mesomericas-conjugadas\/","title":{"rendered":"N-aminidas de alcoxicarbonilcicloimonio, \u00c2\u00bf1,3 \u00f3 1,4-dipolos?. sintesis y reactividad de nuevas heterobeta\u00ednas mesom\u00e9ricas conjugadas."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jes\u00fas Valenciano Mart\u00ednez <\/strong><\/h2>\n<p>El trabajo que se presenta en esta memoria constituye el ejemplo m\u00e1s representativo de la utilizaci\u00f3n de n-aminidas de alcoxicarbonilcicloimonio como equivalentes de 1,4-dipolos (1,4-nucle\u00f3filo-electr\u00f3filos) en la construcci\u00f3n de nuevas heterobeta\u00ednas mesom\u00e9ricas conjugadas. Del estudio realizado sobre dichas n-aminidas frente a diferentes dipolar\u00f3filos, se pueden establecer las siguientes conclusiones:  se ha encontrado un comportamiento dual (1,3-dipolo\/1,4-nucle\u00f3filo-electr\u00f3filo) de las n-aminidas de azinio dependiendo del tipo de diplar\u00f3filo empleado:  * las n-aminidas de alcoxicarbonilazinio se comportan como 1,4-nucle\u00f3filo-electr\u00f3filos frente a heterocumulenos (iso(tio) cianatos y carbodiimidas) y cloruros de imido\u00edlo heteroarom\u00e1ticos, dando lugar a heterobeta\u00ednas que contiene el sistema de pirido (2,1-f) (1,2,4)triazinio, a trav\u00e9s de un proceso de cilcocondensaci\u00f3n (4+2).  * la n-aminida de 2-etoxicarbonilpiridinio act\u00faa como 1,3-dipolo frente adipolar\u00f3filos olef\u00ednicos activados, dando lugar a los correspondientes productos de ciloadici\u00f3n (3+2).  * la n-aminida de 2-etoxicarbonilpiridinio se comporta como 1,3-dipolo frente a dipolar\u00f3filos acetil\u00e9nicos.  el estudio te\u00f3rico del mecanismo de formaci\u00f3n del sistema de pirido (1,2-b)piridazinio se ha realizado mediante an\u00e1lisis pm3-fmo y c\u00e1lculos ab initio de la superficie de energ\u00eda potenciales (ircs) a nivel rhf\/6-31+g*.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>N-aminidas de alcoxicarbonilcicloimonio, \u00c2\u00bf1,3 \u00f3 1,4-dipolos?. sintesis y reactividad de nuevas heterobeta\u00ednas mesom\u00e9ricas conjugadas.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 N-aminidas de alcoxicarbonilcicloimonio, \u00c2\u00bf1,3 \u00f3 1,4-dipolos?. sintesis y reactividad de nuevas heterobeta\u00ednas mesom\u00e9ricas conjugadas. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jes\u00fas Valenciano Mart\u00ednez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Alcal\u00e1<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 23\/11\/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>Juan  Jos\u00e9 Vaquero L\u00f3pez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jose Elguero <\/li>\n<li>ermitas Alcalde (vocal)<\/li>\n<li>Jos\u00e9 joaquin Barluenga mur (vocal)<\/li>\n<li>Miguel \u00e1ngel Yus astiz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jes\u00fas Valenciano Mart\u00ednez El trabajo que se presenta en esta memoria constituye el ejemplo m\u00e1s representativo de 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