Sulfonic resins as catalysts for the oxidation of alcohols with H2O2/KBr

Dorado, Vicente ; Herrerías, Clara I. (Universidad de Zaragoza) ; Fraile, José M.

Resumen: Sulfonic resins can replace homogeneous sulfonic acids in the oxidation of alcohols with the H2O2/KBr system. The performance of different resins was tested with methyl 9(10)-hydroxystearate, a secondary fatty alcohol. The structural features of the resin were more important than the acid strength for the catalytic performance of this reaction. The optimization of the reaction conditions allows the recovery of the resin, although regeneration is required due to the active role of KBr, and a significant loss of sulfonic groups can be detected after nine runs. In the case of primary fatty alcohols, the oxidation leads to carboxylic acids, which are esterified with the starting alcohol under the acidic conditions. For cyclic secondary alcohols, the steric hindrance around the hydroxyl group seems to be important for the efficiency of the oxidation to ketone.

Idioma: Inglés

DOI: 10.3390/catal14010074

Año: 2024

Publicado en: Catalysts 14, 1 (2024), 74 [11 pp.]
ISSN: 2073-4344

Factor impacto JCR: 4.0 (2024)

Categ. JCR: CHEMISTRY, PHYSICAL rank: 83 / 185 = 0.449 (2024) - Q2 - T2

Factor impacto SCIMAGO: 0.746 - Physical and Theoretical Chemistry (Q2) - Catalysis (Q3)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E37-23R
Financiación: info:eu-repo/grantAgreement/ES/MCIU/RTI2018-093431-B-I00
Financiación: info:eu-repo/grantAgreement/ES/MINECO/PID2021-125762NB-I00

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)