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The investigation, initiated with the oxidation of cyclohexane, identified the cumene hydroperoxide (CumHPO) as the optimal oxidant and ligands <jats:bold>L3<\/jats:bold>, <jats:bold>L4<\/jats:bold>, and <jats:bold>L7<\/jats:bold> as effective in chlorinated benzene solvents. Cobalt catalyst (Cat. 1) demonstrated superior activity in the oxidation of octadecane, achieving a 42% yield with a minimal amount of catalyst. The catalytic system was successfully extended to the C\u2500H oxidation of POE, introducing functional groups in solvents like 1,2\u2010Cl<jats:sub>2<\/jats:sub>C<jats:sub>6<\/jats:sub>H<jats:sub>4<\/jats:sub> and 1,2,4\u2010Cl<jats:sub>3<\/jats:sub>C<jats:sub>6<\/jats:sub>H<jats:sub>3<\/jats:sub>. Our findings propose a simple and green approach for the postfunctionalization of POE, offering versatility and potential for broader applications in the field of polymeric compounds.<\/jats:p>","DOI":"10.1002\/chem.202500510","type":"journal-article","created":{"date-parts":[[2025,4,17]],"date-time":"2025-04-17T08:18:46Z","timestamp":1744877926000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Cobalt\u2010Catalyzed C\u2500H Oxidation of Alkanes and Postfunctionalization of Polyolefin Elastomers"],"prefix":"10.1002","volume":"31","author":[{"given":"Chae Eun","family":"Hong","sequence":"first","affiliation":[{"name":"Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min Seok","family":"Oh","sequence":"additional","affiliation":[{"name":"Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seunghwan","family":"An","sequence":"additional","affiliation":[{"name":"Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kwang Ho","family":"Song","sequence":"additional","affiliation":[{"name":"Department of Chemical &amp; Biological Engineering Korea University Seoul 02841 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5079-3860","authenticated-orcid":false,"given":"Sunwoo","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Chemistry Chonnam National University Gwangju 61186 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,5,6]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578-021-00407-8"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10311-021-01334-4"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-4628(19971205)66:10<2005::AID-APP17>3.0.CO;2-2"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0032-3861(02)00639-0"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/TDEI.2015.7076762"},{"key":"e_1_2_8_6_1","first-page":"1347","volume":"27","author":"Yanjarappa M. 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