| Full text | |
| Author(s): |
Saltarelli, Michelle
[1]
;
de Faria, Emerson H.
[1]
;
Ciuffi, Katia J.
[1]
;
Nassar, Eduardo J.
[1]
;
Trujillano, Raquel
[2]
;
Rives, Vicente
[2]
;
Vicente, Miguel A.
[2]
Total Authors: 7
|
| Affiliation: | [1] Univ Franca, Ave Dr Armando Salles Oliveira 201 Pq Univ, BR-14404600 Franca, SP - Brazil
[2] Univ Salamanca, Fac Ciencias Quim, Dept Quim Inorgan, GIR QUESCAT, E-37008 Salamanca - Spain
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | MOLECULAR CATALYSIS; v. 462, p. 114-125, JAN 2019. |
| Web of Science Citations: | 1 |
| Abstract | |
An aminoiron(III) porphyrin immobilized on an alumina matrix was prepared and used as catalyst for the oxidation of organic substrates. Powder alumina had been prepared by a non-hydrolytic sol-gel method through condensation of aluminum chloride with anhydrous ethanol. Then, iron(III) {[}5,10,15,20-tetrakis(2,6-dichloro-3-aminophenyl)-porphyrin] was immobilized on the alumina powder under magnetic stirring, reflux, and inert atmosphere. Ultraviolet-visible and infrared spectroscopies, powder X-ray diffraction, scanning electron microscopy and thermal analysis were applied for characterizing the resulting material, confirming that the ironporphyrin was immobilized on the alumina support. The catalytic activity of ironporphyrin/alumina was evaluated in the oxidation of (Z)-cyclooctene and cyclohexane and in the Baeyer-Villiger oxidation of cyclohexanone using iodosylbenzene or hydrogen peroxide as oxygen donors. The novel immobilized catalyst proved to be a promising system for the efficient and selective oxidation of the organic substrates with 85-92% selectivity to the epoxide in the oxidation of alkenes and 25-41% to the ketone in the oxidation of cyclohexane. As for the Baeyer-Villiger oxidation of cyclohexanone, good conversion to c-caprolactone was observed as well. The material is a reusable heterogeneous catalyst, which makes it more economically feasible than its homogeneous counterpart. (AU) | |
| FAPESP's process: | 16/50322-2 - Materials with advanced technological and environmental applications |
| Grantee: | Katia Jorge Ciuffi Pires |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 16/01501-1 - Multifunctional catalysts for advanced oxidation processes employing biogenic matrices or clays |
| Grantee: | Katia Jorge Ciuffi Pires |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 13/19523-3 - Functional Biohybrid materials based on layered and/or fibrous natural clays with multifaceted applications |
| Grantee: | Emerson Henrique de Faria |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 12/08618-0 - Synthesis and characterization of zeolites obtained from natural clays for dye adsorption |
| Grantee: | Priscila Martins Pereira Rodarte |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |