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6640954 
Journal Article 
EPOXIDATION OF CYCLOOCTENE WITH AQUEOUS HYDROGEN-PEROXIDE CATALYZED BY MOLYBDATE BOUND TO COLLOIDAL POLYMERS 
Srinivasan, S; Ford, WT; , 
1991 
1 
New Journal of Chemistry
ISSN: 1144-0546
EISSN: 1369-9261 
GAUTHIER-VILLARS 
PARIS 
693-699 
WOS:A1991GG22000015 
Epoxidation of cyclooctene in aqueous hydrogen peroxide was catalyzed by ammonium molybdate in the absence of organic solvent. Typically 1.3 mol % of Mo(VI) bound to 60 nm colloidal anion exchange polymers catalyzed 90% conversion of cyclooctene to > 99% cyclooctene oxide by excess hydrogen peroxide in 24 h at 40-degrees-C. Only 12% epoxide was formed in the absence of colloidal particles. Under the same conditions styrene and cyclohexene gave complex product mixtures, and 1-octene did not react. The colloidal polymer supports enable oxidations of water-insoluble alkenes without use of organic solvents. Qualitatively the higher activity of the peroxomolybdate bound to latex than in aqueous solution may be attributed to the higher local concentrations of both the alkene and the catalyst in the latex.