{"id":2346,"date":"2013-10-03T14:23:16","date_gmt":"2013-10-03T13:23:16","guid":{"rendered":"http:\/\/lewin.ch.pw.edu.pl\/?p=2346"},"modified":"2013-10-14T16:40:10","modified_gmt":"2013-10-14T15:40:10","slug":"2346","status":"publish","type":"post","link":"https:\/\/lewin.ch.pw.edu.pl\/?p=2346","title":{"rendered":"Catalytic Epoxidation of Enones Mediated by Zinc Alkylperoxide\/<i>tert<\/i>-BuOOH Systems"},"content":{"rendered":"<div><i>Organometallics<\/i>, <strong>2013<\/strong>, <i>32<\/i>, 5263-5265.<\/div>\n<div><\/div>\n<div><\/div>\n<div><strong><span style=\"font-size: 2em;\"><br \/>\nCatalytic Epoxidation of Enones Mediated by Zinc Alkylperoxide\/<i>tert<\/i>-BuOOH Systems<\/span><\/strong><\/div>\n<p>&nbsp;<br \/>\n<strong><a href=\"?page_id=355\">Marcin Kubisiak<\/a>,<sup>a<\/sup> <a href=\"?page_id=317\">Karolina Zelga<\/a>,<sup>a<\/sup> <a href=\"?page_id=307\">Iwona Justyniak<\/a>,<sup>b<\/sup> Ewa Tratkiewicz,<sup>a<\/sup> <a href=\"?page_id=396\">Tomasz Pietrzak<\/a>,<sup>a<\/sup> <a href=\"?page_id=\">Abdul R. Keeri<\/a>,<sup>ac<\/sup> Zbigniew Ochal,<sup>a<\/sup> Larissa Hartenstein,<sup>d<\/sup> Peter W. Roesky<sup>d<\/sup> and <a href=\"?page_id=14\">Janusz Lewi\u0144ski<\/a>*<sup>ab<\/sup><\/strong><\/p>\n<p><sup>a <\/sup>Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland<br \/>\n<sup>b <\/sup>Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44\/52, 01-224 Warsaw, Poland<br \/>\n<sup>c <\/sup>University of Warsaw, Faculty of Chemistry, Pasteura 1, 02-093 Warsaw, Poland<br \/>\n<sup>d <\/sup>Institute for Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany<\/p>\n<p><strong>DOI: <\/strong> 10.1021\/om400830e<br \/>\nReceived 13 Aug 2013, Accepted 17 Sep 2013<br \/>\nFirst published online 18 Sep 2013<\/p>\n<p>The epoxidation of enones by zinc alkylperoxides is a challenging task receiving considerable attention in contemporary research; however, until now no well-defined zinc alkylperoxide based systems have been described. Here, a new catalytic method of epoxidation of enones in the presence of zinc alkylperoxides supported by N,N-bidentate ligands and tert-butyl hydroperoxide is reported. A new dimeric zinc alkylperoxide complex supported by an aminotroponiminate ligand is also presented. The studied catalytic systems show high activity in the epoxidation of trans-chalcone, and in the case of a chiral catalyst with the (S,S)-N,N\u2032-bis(1-phenylethyl)aminotroponiminate ligand a moderate enantioselectivity was achieved.<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter  wp-image-2004\" alt=\"organometallics2013epoxidation\" src=\"http:\/\/lewin.ch.pw.edu.pl\/wp-content\/uploads\/2013\/10\/organometallics2013epoxidation.gif\" width=\"400\" \/><\/p>\n<p><a href=\"http:\/\/pubs.acs.org\/doi\/abs\/10.1021\/om400830e\" target=\"_blank\">Paper on ACS website<\/a><\/p>\n<p><a href=\"http:\/\/lewin.ch.pw.edu.pl\/wp-content\/uploads\/2013\/10\/organometallics2013epoxidation.pdf\" target=\"_blank\">Full-text PDF<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Organometallics, 2013, 32, 5263-5265. Catalytic Epoxidation of Enones Mediated by Zinc Alkylperoxide\/tert-BuOOH Systems &nbsp; Marcin Kubisiak,a Karolina Zelga,a Iwona Justyniak,b Ewa Tratkiewicz,a Tomasz Pietrzak,a Abdul R. Keeri,ac Zbigniew Ochal,a Larissa Hartenstein,d Peter W. Roeskyd and Janusz Lewi\u0144ski*ab a Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland b Institute of Physical Chemistry, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2354,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[19],"tags":[],"class_list":["post-2346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper"],"_links":{"self":[{"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=\/wp\/v2\/posts\/2346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2346"}],"version-history":[{"count":7,"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=\/wp\/v2\/posts\/2346\/revisions"}],"predecessor-version":[{"id":2434,"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=\/wp\/v2\/posts\/2346\/revisions\/2434"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=\/wp\/v2\/media\/2354"}],"wp:attachment":[{"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lewin.ch.pw.edu.pl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}