Supercritical carbon dioxide , aerobic

An efficient and convenient methodology for the aerobic oxidation of alcohols catalysed by sol-gel trapped perruthenate and promoted by an encapsulated ionic liquid in supercritical carbon dioxide solution has been reported. The reaction is highly selective and useful for substrates otherwise difficult to oxidize.263 A four-component system consisting of acetamido-TEMPO-Cu(C104)2-TMDP-DABCO has been developed for aerobic alcohol oxidation at room temperature. The catalytic system shows excellent selectivity towards the oxidation of benzylic and allylic alcohols and is not deactivated by heteroatom-containing (S, N) compounds. The use of DMSO as the reaction medium allows the catalysts to be recycled and reused for three runs with no significant loss of catalytic activity.264... [Pg.122]

Hou Z, Theyssen N, Brinkmann A et al (2005) Biphasic aerobic oxidation of alcohols catalyzed by polyethylene glycol)-stabilized palladium nanoparticles in supercritical carbon dioxide. Angew Chem Int Ed 44(9) 1346—1349... [Pg.7]

Wang J-Q, Cai F, Wang E et al (2007) Supercritical carbon dioxide and poly(ethylene glycol) an environmentally benign biphasic solvent system for aerobic oxidation of styrene. Green Chem 9(8) 882-887... [Pg.37]

Hou Z, Theyssen N, Leitner W (2007) Palladium nanoparticles stabilised on PEG-modified silica as catalysts for the aerobic alcohol oxidation in supercritical carbon dioxide. Green Chem 9(2) 127-132... [Pg.39]

Wang X, Yang H, Feng B et al (2009) Functionalized polyethylene glycol)-stabilized palladium nanoparticles as an efficient catalyst for aerobic oxidation of alcohols in supercritical carbon dioxide/poly(ethylene glycol) biphasic solvent system. Catal Lett 132 34-40... [Pg.39]

Mallat, T., Seyler, L., Mir Alai, M., et al. (1998). Aerobic Oxidation of a-Substituted Alcohols over Promoted Platinum Metal Catalysts, in B. Hodnett, J. Clark and K. Smith (eds). Supported Reagents and Catalysts in Chemistry, 216, Royal Society of Chemistry, Cambridge, pp. 66-71, cit. in Jenzer, G., Sueur, D., Mallat, T, etal. (2000). Partial Oxidation of Alcohols in Supercritical Carbon Dioxide, Chem. Commun., 22, pp. 2247-2248. [Pg.418]

Hou, Z., Theyssen, N. and Leitner, W. (2007). Palladium Nanoparticles Stabilised on PEG-Modified Sihca as Catalysts for the Aerobic Alcohol Oxidation in Supercritical Carbon Dioxide, Green Chem., 9, pp. 127—132. [Pg.671]

Hou, Z., Theyssen, N., Brinkmann, A., et al. (2008). Supported Palladium Nanoparticles on Hybrid Mesopotous SUica Sinicture/Activity-Relationship in the Aerobic Alcohol Oxidation Using Supercritical Carbon Dioxide, J. Catal., 258, pp. 315—323. [Pg.671]

Maayan, G., Ganchegui, B., Leitner, W, et al. (2006). Selective aerobic oxidation in supercritical carbon dioxide catalyzed by the H5PV2M010O40 polyoxometalate, Chem. Commuru, 21, pp. 2230-2232. [Pg.870]

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