Synthesis of bis-quaternary ammonium peroxotungstates (peroxomolybdates) and their catalytic activity in oxidation of alcohols by aqueous H2O2

SHI Xianying, WEI Junfa

Front. Chem. China ›› 2007, Vol. 2 ›› Issue (1) : 70-73.

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PDF(302 KB)
Front. Chem. China ›› 2007, Vol. 2 ›› Issue (1) : 70-73. DOI: 10.1007/s11458-007-0014-8

Synthesis of bis-quaternary ammonium peroxotungstates (peroxomolybdates) and their catalytic activity in oxidation of alcohols by aqueous H2O2

  • SHI Xianying, WEI Junfa
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Abstract

Three kinds of bis-quaternary ammonium salts of peroxotungstate and peroxomolybdate, such as PhCH2N-(CH2)6NCH2Ph[W(O2)4] ° 2H2O, PhCH2N(CH2)6NCH2Ph[WO(O2)2(C2O4)] and PhCH2N(CH2)6NCH2Ph [MoO(O2)2(C2O4)], have been synthesized and characterized. Their catalytic activity in the oxidation of cyclohexanol and benzyl alcohol was investigated with only aqueous 30% hydrogen peroxide. The results show that the bis-quaternary ammonium peroxotungstates are excellent catalysts in the oxidation of benzyl alcohol and cyclohexanol under moderate conditions. However, the catalytic ability of bis-quaternary ammonium peroxomolybadates is relatively poor. The yields of benzyl acid, benzaldehyde, and cyclohexanone reached up to 93.0%, 93.6%, and 91.7%, respectively.

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SHI Xianying, WEI Junfa. Synthesis of bis-quaternary ammonium peroxotungstates (peroxomolybdates) and their catalytic activity in oxidation of alcohols by aqueous H2O2. Front. Chem. China, 2007, 2(1): 70‒73 https://doi.org/10.1007/s11458-007-0014-8
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