{"id":534,"date":"2020-06-08T11:30:28","date_gmt":"2020-06-08T09:30:28","guid":{"rendered":"https:\/\/sites.unimi.it\/apisgroup\/?p=534"},"modified":"2022-01-21T13:04:14","modified_gmt":"2022-01-21T12:04:14","slug":"vancomycin-iridium-iii-interaction-an-unexplored-route-for-enantioselective-imine-reduction","status":"publish","type":"post","link":"https:\/\/sites.unimi.it\/apisgroup\/2020\/06\/08\/vancomycin-iridium-iii-interaction-an-unexplored-route-for-enantioselective-imine-reduction\/","title":{"rendered":"Vancomycin-Iridium (III) Interaction: An Unexplored Route for Enantioselective Imine Reduction"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The chiral structure of antibiotic vancomycin (Van) was exploited as an innovative coordination sphere for the preparation of an IrCp* based hybrid catalysts. We found that Van is able to coordinate iridium (Ir(III)) and the complexation was demonstrated by several analytical techniques such as MALDI-TOF, UV, Circular dichroism (CD), Raman IR, and NMR. The hybrid system so obtained was employed in the Asymmetric Transfer Hydrogenation (ATH) of cyclic imines allowing to obtain a valuable 61%&nbsp;<em>e.e.<\/em>&nbsp;(<em>R<\/em>) in the asymmetric reduction of quinaldine&nbsp;<strong>2<\/strong>. The catalytic system exhibited a saturation kinetics with a calculated efficiency of K<sub>cat<\/sub>\/K<sub>M<\/sub>&nbsp;= 0.688 h<sup>\u22121<\/sup>mM<sup>\u22121<\/sup>.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><a href=\"https:\/\/doi.org\/10.3390\/molecules24152771\">https:\/\/doi.org\/10.3390\/molecules24152771<\/a><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>The chiral structure of antibiotic vancomycin (Van) was exploited as an innovative coordination sphere for the preparation of an IrCp* based hybrid catalysts. We found that Van is able to coordinate iridium (Ir(III)) and&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":535,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-534","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vancomycin-Iridium (III) Interaction: An Unexplored Route for Enantioselective Imine Reduction - APIS group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites.unimi.it\/apisgroup\/2020\/06\/08\/vancomycin-iridium-iii-interaction-an-unexplored-route-for-enantioselective-imine-reduction\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vancomycin-Iridium (III) Interaction: An Unexplored Route for Enantioselective Imine Reduction - APIS group\" \/>\n<meta property=\"og:description\" content=\"The chiral structure of antibiotic vancomycin (Van) was exploited as an innovative coordination sphere for the preparation of an IrCp* based hybrid catalysts. 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