01834nas a2200253   4500008004100000022001400041245019100055210006900246260007300315300001000388490000800398520085200406653001201258653001201270653001701282653001401299653002801313653002001341653002101361100002101382700002101403700002801424856012801452       2007                        eng d  a1381-116900a[SbW9O33]-based polyoxometalate combined with a phase transfer catalyst: A highly effective catalyst system for selective oxidation of alcohols with H2O2, and spectroscopic investigation0 aSbW9O33based polyoxometalate combined with a phase transfer cata  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a52-580 v2623 a<p>Na-9[SbW9O33] in conjunction with a phase transfer catalyst, methyltricapryl ammonium chloride, is highly efficient for selective oxidation of variety of alcohols with aq. H2O2 to yield corresponding carbonyls. Most importantly the reactions are carried out in the absence of any organic solvents especially halogenated solvents. In case of allylic alcohols, the catalyst is highly selective for the alcohol oxidation reaction and least selective for epoxidation reaction in the presence of aq. H2O2. IR studies support the formation of W-peroxo intermediate species and also support the stability of the catalyst in the presence of phase transfer compound under the present experimental condition. The catalyst can be reused after careful decomposition of peroxide of the final reaction mixture. (c) 2006 Elsevier B.V. All rights reserved.</p>10aAlcohol10aAq.H2O210aNag[SbW9O33]10aOxidation10aPhase transfer catalyst10aPolyoxometalate10apolyoxotungstate1 aIngle, Rohit, H.1 aRaj, N., K. Kala1 aManikandan, Palanichamy  uhttps://library.ncl.res.in/content/sbw9o33-based-polyoxometalate-combined-phase-transfer-catalyst-highly-effective-catalyst