{"id":13504,"date":"2018-03-09T08:59:49","date_gmt":"2018-03-09T08:59:49","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/propargilaciones-intramoleculares-catalizadas-por-pd0-de-aldehidos-y-cetonas-a-traves-de-intermedios-organometalicos-de-cinc\/"},"modified":"2018-03-09T08:59:49","modified_gmt":"2018-03-09T08:59:49","slug":"propargilaciones-intramoleculares-catalizadas-por-pd0-de-aldehidos-y-cetonas-a-traves-de-intermedios-organometalicos-de-cinc","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/propargilaciones-intramoleculares-catalizadas-por-pd0-de-aldehidos-y-cetonas-a-traves-de-intermedios-organometalicos-de-cinc\/","title":{"rendered":"Propargilaciones intramoleculares, catalizadas por pd(0), de aldehidos, y cetonas a traves de intermedios organometalicos de cinc."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Monica Arrate Martinez <\/strong><\/h2>\n<p>Existen pocos procedimientos para la sintesis de cicloalcanoles homoproparg\u00edlicos, compuestos de importancia sint\u00e9tica y biol\u00f3gica. Por otra parte los ya existentes presentan problemas de regioselectividad. Por ello se ha desarrollado un nuevo metodo basado en el concepto de propargilaci\u00f3n intramolecular a traves de intermedios organometalicos, conduncente a los citados cicloalcanoles homopropargilicos. Este nuevo metodo utiliza esteres propargilicos como sustratos, que son transformados en los productos a traves de intermedios organometalicos de cinc generados a partir de et2zn y una cantidad catalitica de pd(0).  dependiendo de las condiciones de reacci\u00f3n, del tipo de sustrato utilizado (aldeh\u00eddo o cetona), de los ligandos del catalizador de pd(0) y del disolvente (thf o benceno), pueden obtenerse diferentes resultados estereoquimicos en los productos, lo cual proporciona una gran versatilidad al m\u00e9todo.  los factores que determinan el curso estereoqu\u00edmico del proceso han sido discutidos y la estrategia ha sido aplicada a la sintesis de biciclos asi como a la sintesis diastereoselectiva de ciclopentanos enantiomericamente puros a partir de sustratos derivados de carbohidratos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Propargilaciones intramoleculares, catalizadas por pd(0), de aldehidos, y cetonas a traves de intermedios organometalicos de cinc.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Propargilaciones intramoleculares, catalizadas por pd(0), de aldehidos, y cetonas a traves de intermedios organometalicos de cinc. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Monica Arrate Martinez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 26\/10\/2001<\/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>Jos\u00e9 Miguel Aurrecoechea Fernandez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: marcial Moreno ma\u00f1as <\/li>\n<li>Francisco Javier Sardina l\u00f3pez (vocal)<\/li>\n<li>angel Rodriguez de lera (vocal)<\/li>\n<li>eduardo Rubio royo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Monica Arrate Martinez Existen pocos procedimientos para la sintesis de cicloalcanoles homoproparg\u00edlicos, compuestos de importancia sint\u00e9tica y [&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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