Aromatic aldehyde oxidation by hexacyanoferrate(III) catalyzed by Ru(VI) in alkaline medium

被引：0

作者：

Alcolado, C. I. ^{[1
,2
]}

Poblete, J. ^{[3
]}

Garcia-Rio, L. ^{[4
]}

Jimenez, E. ^{[1
,2
]}

Poblete, F. J. ^{[1
,2
]}

机构：

[1] Univ Castilla La Mancha UCLM, Fac Chem Sci & Technol, Dept Phys Chem, Avda Camilo Jose Cela 1B, Ciudad Real 13071, Spain

[2] UCLM, Inst Invest Combust & Contaminac Atmosfer, Res Insitute Combust & Atmospher Pollut, ICCA, Camino Moledores s-n, Ciudad Real 13071, Spain

[3] Univ Castilla La Mancha UCLM, Fac Chem Sci & Technol, Dept Inorgan Organ & Biochem, Ave Camilo Jose Cela 10, Ciudad Real 13071, Spain

[4] Univ Santiago, Fac Chem, Dept Phys Chem, Avda Ciencias S-N, Santiago De Compostela 15701, Spain

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2024年 / 393卷

关键词：

Oxidation mechanism; Aromatic aldehydes; Ruthenate ion; Hexacyanoferrate(III); Alkaline medium; REACTIVITY; KINETICS; ALCOHOLS; RU(III);

D O I：

10.1016/j.molliq.2023.123580

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：7

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