RT Journal Article T1 Aromatic aldehyde oxidation by hexacyanoferrate(III) catalyzed by Ru(VI) in alkaline medium A1 Alcolado Olivares, Clara Inés A1 Poblete Pérez, Javier A1 García Río, Luis A1 Jiménez Martínez, Elena A1 Poblete Martín, Francisco Javier K1 Oxidation mechanism K1 Aromatic aldehydes K1 Ruthenate ion K1 Hexacyanoferrate(III) K1 Alkaline medium AB In this study, the selective oxidation of aromatic aldehydes has been investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction order with respect to the oxidant and the aromatic aldehyde is complex while the reaction order with respect to Ru(VI) is one. The proposed mechanism presents two catalytic cycles for the two active species of the catalyst. In each cycle, Ru(VI) species forms a complex with the anion of hydrated benzaldehyde which decomposes to form benzoic acid. The function of hexacyanoferrate(III) is the regeneration of catalyst species. A quantitative structure–activity relationship was analyzed using the Hammett equation for decomposition complex step. This analysis showed that deactivating groups in para- position enhances this process PB Elsevier SN 0167-7322 YR 2024 FD 2024-01-01 LK https://hdl.handle.net/10347/44400 UL https://hdl.handle.net/10347/44400 LA eng NO C.I. Alcolado, J. Poblete, L. García-Río, E. Jiménez, F.J. Poblete, Aromatic aldehyde oxidation by hexacyanoferrate(III) catalyzed by Ru(VI) in alkaline medium, Journal of Molecular Liquids, Volume 393, 2024, 123580, ISSN 0167-7322, https://doi.org/10.1016/j.molliq.2023.123580 NO inancial support from the University of Castilla-La Mancha and the European Regional Development Fund (FEDER) (grant n° 2023-GRIN-34143) is gratefully acknowledged DS Minerva RD 28 abr 2026