{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T22:26:26Z","timestamp":1775600786523,"version":"3.50.1"},"reference-count":20,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2020,12,10]],"date-time":"2020-12-10T00:00:00Z","timestamp":1607558400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/00100\/2020"],"award-info":[{"award-number":["UIDB\/00100\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["IST-ID\/119\/2018"],"award-info":[{"award-number":["IST-ID\/119\/2018"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Catalysts"],"abstract":"<jats:p>A cleaner alternative to the current inefficient oxidation of cyclohexane to adipic acid is presented. Direct oxidation of neat cyclohexene by aq. hydrogen peroxide to adipic acid is selectively achieved in good yield (46%), in the presence of the recyclable C-homoscorpionate iron(II) complex [FeCl2{\u03ba3-HC(pz)3}] (pz = pyrazol-1-yl) and microwave irradiation, by a nitrous oxide-free protocol.<\/jats:p>","DOI":"10.3390\/catal10121443","type":"journal-article","created":{"date-parts":[[2020,12,10]],"date-time":"2020-12-10T00:45:03Z","timestamp":1607561103000},"page":"1443","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Adipic Acid Route: Oxidation of Cyclohexene vs. Cyclohexane"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4323-4328","authenticated-orcid":false,"given":"Ana P. C.","family":"Ribeiro","sequence":"first","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural and Departamento de Engenharia Qu\u00edmica, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal"}]},{"given":"Elisa","family":"Spada","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Padova, 35122 Padova, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3058-7546","authenticated-orcid":false,"given":"Roberta","family":"Bertani","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering, University of Padova, 35122 Padova, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5403-9352","authenticated-orcid":false,"given":"Lu\u00edsa M. D. R. S.","family":"Martins","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural and Departamento de Engenharia Qu\u00edmica, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,12,10]]},"reference":[{"key":"ref_1","unstructured":"(1999\u20132016). Ullmann\u2019s Encyclopedia of Industrial Chemistry, Wiley-VCH. [6th ed.]."},{"key":"ref_2","unstructured":"Adipic acid (ADPA) (2016). World Market Outlook and Forecast up to 2020, Merchant Research and Consulting."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"4229","DOI":"10.1002\/chem.200600189","article-title":"To the core of autocatalysis in cyclohexane autoxidation","volume":"12","author":"Hermans","year":"2006","journal-title":"Chem. Eur. J."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1465","DOI":"10.1039\/C3CY20728E","article-title":"Emerging catalytic processes for the production of adipic acid","volume":"3","year":"2013","journal-title":"Catal. Sci. Technol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.ccr.2014.01.013","article-title":"Tris(pyrazol-1yl) methane metal complexes for catalytic mild oxidative functionalizations of alkanes, alkenes and ketones","volume":"265","author":"Martins","year":"2014","journal-title":"Co-ord. Chem. Rev."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1016\/j.ccr.2019.06.009","article-title":"C-scorpionate complexes: Ever young catalytic tools","volume":"396","author":"Martins","year":"2019","journal-title":"Co-ord. Chem. 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