Copper(II) Complexes of Arylhydrazone of 1H-Indene-1,3(2H)-dione as Catalysts for the Oxidation of Cyclohexane in Ionic Liquids
The copper(II) complexes [CuL(H2O)2]∙H2O (1) and [CuL(dea)] (2) [L = 2-(2-(1,3-dioxo-1H-inden-2(3H)-ylidene)hydrazinyl)benzenesulfonate, dea = diethanolamine] were applied as catalysts in the peroxidative (with tert-butyl-hydroperoxide or hydrogen peroxide) conversion of cyclohexane to cyclohexanol...
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| Veröffentlicht in: | Catalysts 2018-12, Vol.8 (12), p.636 |
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| container_title | Catalysts |
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| creator | Tiago, Gonçalo A. O. Ribeiro, Ana P. C. C. Guedes da Silva, M. Fátima Mahmudov, Kamran T. Branco, Luís C. Pombeiro, Armando J. L. |
| description | The copper(II) complexes [CuL(H2O)2]∙H2O (1) and [CuL(dea)] (2) [L = 2-(2-(1,3-dioxo-1H-inden-2(3H)-ylidene)hydrazinyl)benzenesulfonate, dea = diethanolamine] were applied as catalysts in the peroxidative (with tert-butyl-hydroperoxide or hydrogen peroxide) conversion of cyclohexane to cyclohexanol and cyclohexanone, either in acetonitrile or in any of the ionic liquids [bmim][NTf2] and [hmim][NTf2] [bmim = 1-butyl-3-methylimidazolium, hmim = 1-hexyl-3-methylimidazolium, NTf2 = bis(trifluoromethanesulfonyl) imide]. Tert-butyl-hydroperoxide led to better product yields, as compared to H2O2, with a selectivity directed towards cyclohexanone. The ILs showed a better performance than the conventional solvent for the copper complex 1. No catalytic activity was observed for 2 in the presence of an IL. |
| doi_str_mv | 10.3390/catal8120636 |
| format | Article |
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O.</au><au>Ribeiro, Ana P. C.</au><au>C. Guedes da Silva, M. Fátima</au><au>Mahmudov, Kamran T.</au><au>Branco, Luís C.</au><au>Pombeiro, Armando J. L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Copper(II) Complexes of Arylhydrazone of 1H-Indene-1,3(2H)-dione as Catalysts for the Oxidation of Cyclohexane in Ionic Liquids</atitle><jtitle>Catalysts</jtitle><date>2018-12-01</date><risdate>2018</risdate><volume>8</volume><issue>12</issue><spage>636</spage><pages>636-</pages><issn>2073-4344</issn><eissn>2073-4344</eissn><abstract>The copper(II) complexes [CuL(H2O)2]∙H2O (1) and [CuL(dea)] (2) [L = 2-(2-(1,3-dioxo-1H-inden-2(3H)-ylidene)hydrazinyl)benzenesulfonate, dea = diethanolamine] were applied as catalysts in the peroxidative (with tert-butyl-hydroperoxide or hydrogen peroxide) conversion of cyclohexane to cyclohexanol and cyclohexanone, either in acetonitrile or in any of the ionic liquids [bmim][NTf2] and [hmim][NTf2] [bmim = 1-butyl-3-methylimidazolium, hmim = 1-hexyl-3-methylimidazolium, NTf2 = bis(trifluoromethanesulfonyl) imide]. Tert-butyl-hydroperoxide led to better product yields, as compared to H2O2, with a selectivity directed towards cyclohexanone. The ILs showed a better performance than the conventional solvent for the copper complex 1. No catalytic activity was observed for 2 in the presence of an IL.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/catal8120636</doi><orcidid>https://orcid.org/0000-0001-8323-888X</orcidid><orcidid>https://orcid.org/0000-0003-4323-4328</orcidid><orcidid>https://orcid.org/0000-0003-4836-2409</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Acetonitrile Alcohol Catalysis Catalysts Catalytic activity Chemical reactions Coordination compounds Copper compounds Cyclohexane Cyclohexanone Diethanolamine Diketones Hydrocarbons Hydrogen peroxide Indene Ionic liquids Oxidation Selectivity Solvents |
| title | Copper(II) Complexes of Arylhydrazone of 1H-Indene-1,3(2H)-dione as Catalysts for the Oxidation of Cyclohexane in Ionic Liquids |
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