Highly efficient oxidation of alcohols and aromatic compounds catalysed by the Ru-Co-Al hydrotalcite in the presence of molecular oxygen

Modern Oxidation of Alcohols Using Environmentally Benign Oxidants

“…Subsequently, the same group showed that the activity of the Ru-HT was significantly enhanced by the introduction of cobalt(II), in addition to ruthenium(III), into the brucite layer [64]. For example, cinnamyl alcohol underwent complete conversion in 40 min in toluene at 60 C in the presence of Ru/Co-HT, compared with 31% conversion under the same conditions with Ru-HT.…”

Oxidation of Alcohols with Molecular Oxygen

“…The activity of Ru − Mg − Al/HT could be enhanced by replacement of the Mg 2+ ions with other divalent metal cations, while preserving the carbonate anions in the interlayer [178]. One-pot synthesis of quinolines from 2-aminobenzyl alcohols via aerobic oxidation and aldol reaction, catalyzed by a bifunctional hydrotalcite-supported Ru catalyst (Ru/HT, 10 5 Pa, 100 • C, in toluene) [177].…”

Catalytic Activity of Cobalt Containing MCM-41 and HMS in Liquid Phase Oxidation of Diphenylmethane

“…Wang and coworkers used cobalt doped MCM-41 and cobalt doped mesoporous TiO 2 for oxidation of diphenylmethane to benzophenone [17,18]. Some authors have used hydrotalcite like materials e. g. MnO 4 -exchanged MgAl [8], NiAl [19], MnMgAl [9] and Ru-Co-Al [20] for the selective oxidation of diphenylmethane using O 2 with the result of moderate to high benzophenone yields. Very promising results were observed by Kishore et al [11] for the oxidation of diphenylmethane over transition metal containing ternary hydrotalcites.…”