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The HM material was used to immobilise the [Mo(O)<jats:sub>2<\/jats:sub>Cl<jats:sub>2<\/jats:sub>] complex. The resultant material (HM\u2010Mo) is an active and selective catalyst in the liquid\u2010phase epoxidation of olefins [<jats:italic>cis<\/jats:italic>\u2010cyclooctene, (<jats:italic>R<\/jats:italic>)\u2010(+)\u2010limonene, <jats:italic>trans<\/jats:italic>\u20102\u2010octene, 1\u2010octene] with <jats:italic>t<\/jats:italic>BuOOH at 55 \u00b0C and gives comparable epoxide yields to those observed for the free complex [MoCl<jats:sub>2<\/jats:sub>(O)<jats:sub>2<\/jats:sub>{OP(CH<jats:sub>2<\/jats:sub>CH<jats:sub>3<\/jats:sub>)(Ph)<jats:sub>2<\/jats:sub>}<jats:sub>2<\/jats:sub>] (<jats:bold>1<\/jats:bold>), under similar reaction conditions: the crystal structure of complex <jats:bold>1<\/jats:bold> remains the same after reaction with <jats:italic>t<\/jats:italic>BuOOH. The oxidant is essentially consumed in the HM\u2010Mo or <jats:bold>1<\/jats:bold> catalysed epoxidation of the olefin. In the case of limonene (possesses endo\u2010 and exocyclic C=C bonds), the molar ratio of 1,2\u2010epoxy\u2010<jats:italic>p<\/jats:italic>\u2010menth\u20108\u2010ene\/1,2\u20138,9\u2010diepoxy\u2010<jats:italic>p<\/jats:italic>\u2010menthane at ca. 90\u2009% conversion (reached after 24 h reaction) is ca. 5 and 10 for <jats:bold>1<\/jats:bold> and HM\u2010Mo, respectively, indicating a favourable regioselectivity towards the epoxidation of the endocyclic C1\u2013C2 double bond, especially in the case of the heterogeneous catalyst.<\/jats:p>","DOI":"10.1002\/ejic.200901093","type":"journal-article","created":{"date-parts":[[2010,2,12]],"date-time":"2010-02-12T13:01:17Z","timestamp":1265979677000},"page":"1405-1412","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Nanostructured Dioxomolybdenum(VI) Catalyst for the Liquid\u2010Phase Epoxidation of Olefins"],"prefix":"10.1002","volume":"2010","author":[{"given":"Alichandra","family":"Castro","sequence":"first","affiliation":[]},{"given":"Jo\u00e3o C.","family":"Alonso","sequence":"additional","affiliation":[]},{"given":"Anabela A.","family":"Valente","sequence":"additional","affiliation":[]},{"given":"Patr\u00edcia","family":"Neves","sequence":"additional","affiliation":[]},{"given":"Paula","family":"Brand\u00e3o","sequence":"additional","affiliation":[]},{"given":"Vitor","family":"F\u00e9lix","sequence":"additional","affiliation":[]},{"given":"Paula","family":"Ferreira","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2010,3,9]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200503075"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1039\/a709143e"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1081\/CR-100100262"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0926-860X(00)00855-3"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/adsc.200390051"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1039\/B303073N"},{"key":"e_1_2_6_7_2","unstructured":"\u00a0"},{"key":"e_1_2_6_8_2","unstructured":"M.Schulz J. 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