{"id":63784,"date":"2008-04-04T00:00:00","date_gmt":"2008-04-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/reacciones-de-activacion-c-h-promovidas-por-complejos-pol1hidruro-de-osmio\/"},"modified":"2008-04-04T00:00:00","modified_gmt":"2008-04-04T00:00:00","slug":"reacciones-de-activacion-c-h-promovidas-por-complejos-pol1hidruro-de-osmio","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/compuestos-organometalicos\/reacciones-de-activacion-c-h-promovidas-por-complejos-pol1hidruro-de-osmio\/","title":{"rendered":"Reacciones de activaci\u00f3n c-h promovidas por complejos pol1hidruro de osmio"},"content":{"rendered":"

Tesis doctoral de Beatriz Eguillor Armend\u00e1riz <\/strong><\/h2>\n

Los resultados recogidos en esta memoria ponen de manifiesto que el complejo osh3(snph2c1) {h2-ch2=c(ch3)]pipr2}(pipr3)activa selectivamente enlaces c-h de aldeh\u00eddos. La activaci\u00f3n de benzaldeh\u00eddo y benzaldeh\u00eddos para-sustituidos ocurre en laposici\u00f3n orto del sustituyente fenilo. Cuando el benzaldeh\u00eddo est\u00e1 sustituido en posici\u00f3n meta, la selectividad del proceso dependedel sustituyente. El grupo metoxi no genera selectividad, mientras que un fragmento trifluorometilo favorece la activaci\u00f3n del enlaceorto-ch menos congestionado. La activaci\u00f3n de 3-furaldeh\u00eddo y de 1-ciclohexen-l-carboxaldeh\u00eddo tiene lugar en uno de los enlacescbeta-h.El complejo osh3(snph2c1){h2-ch2=c(ch3)]pipr2}(pipr3) tambi\u00e9n activa enlaces c(sp2)-h de 2-vinilpiridina,(e)-n-(fenilmetilen)-2-piridinamina y cetonas alfa,beta-insturadas para dar heterometalaciclos de cinco miembros. En sustratos quecontienen grupos arom\u00e1ticos y olef\u00ednicos, como la bencilidenacetofenona, se observa selectividad cin\u00e9tica hacia la activaci\u00f3n delenlace cbeta(sp2)-h oleflnico y termodin\u00e1mica hacia la del enlace orto c-h del sustituyente fenilo.El complejo hexahidruro osh6(pipr3)2 activa uno de los enlaces c(sp3)-h de un grupo metilo de 8-metilquinole\u00edna y de2-(dimetilamino)piridina para dar derivados trihidruro – heterometalaciclo que muestran intercambio de posici\u00f3n entre los \u00e1tomos dehidr\u00f3geno unidos al centro met\u00e1lico y de \u00e9stos con los del grupo metileno del heterometalaciclo. El asistente quinole\u00edna proporcionaenerg\u00edas de activaci\u00f3n menores que el asistente 2-metilaminopiridina para el intercambio hidruro – metileno. Los complejostrihidruro – heterometalaciclo muestan un comportamiento sensiblemente diferente frente a la protonaci\u00f3n con hbf4. Mientras queel derivado osh3(ch2c9h6n)(pipr3)2 da una especie hidruro – dihidr\u00f3geno que contiene coordinada una mol\u00e9cula de8-metilquinole\u00edna a trav\u00e9s del nitr\u00f3geno y del sustituyente metilo en la forma h3-h2c, el complejo osh3 {ch2n(ch3)-o-c5h4n}<\/p>\n

 <\/p>\n

Datos acad\u00e9micos de la tesis doctoral \u00abReacciones de activaci\u00f3n c-h promovidas por complejos pol1hidruro de osmio<\/strong>\u00ab<\/h3>\n
    \n
  • T\u00edtulo de la tesis:<\/strong>\u00a0 Reacciones de activaci\u00f3n c-h promovidas por complejos pol1hidruro de osmio <\/li>\n
  • Autor:<\/strong>\u00a0 Beatriz Eguillor Armend\u00e1riz <\/li>\n
  • Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n
  • Fecha de lectura de la tesis:<\/strong>\u00a0 04\/04\/2008<\/li>\n<\/ul>\n

     <\/p>\n

    Direcci\u00f3n y tribunal<\/h3>\n
      \n
    • Director de la tesis<\/strong>\n
        \n
      • Miguel \u00e1ngel Esteruelas Rodrigo<\/li>\n<\/ul>\n<\/li>\n
      • Tribunal<\/strong>\n
          \n
        • Presidente del tribunal: carmen N\u00e1jera domingo <\/li>\n
        • P\u00e9rez romero pedro j. (vocal)<\/li>\n
        • Carlos Sa\u00e1 rodr\u00edguez (vocal)<\/li>\n
        • f\u00e9lix angel Jal\u00f3n sot\u00e9s (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Tesis doctoral de Beatriz Eguillor Armend\u00e1riz Los resultados recogidos en esta memoria ponen de manifiesto que el complejo osh3(snph2c1) {h2-ch2=c(ch3)]pipr2}(pipr3)activa […]<\/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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[863,53714,13610],"tags":[140822,57824,19243,51030,18476,76791],"class_list":["post-63784","post","type-post","status-publish","format-standard","hentry","category-compuestos-organometalicos","category-hidruros","category-zaragoza","tag-beatriz-eguillor-armendariz","tag-carlos-saa-rodriguez","tag-carmen-najera-domingo","tag-felix-angel-jalon-sotes","tag-miguel-angel-esteruelas-rodrigo","tag-perez-romero-pedro-j"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/63784","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=63784"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/63784\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=63784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=63784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=63784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}