Aerobic oxidation and oxidative bromination in aqueous medium using polymer anchored oxovanadium complex

• Polymer anchored oxovanadium catalyst was synthesized and characterized.
• This catalyst shows excellent catalytic activity towards aerobic oxidation of alcohols.
• This catalyst is also effective in oxidative bromination reaction.
• All the above reactions are carried out in aqueous medium.
• This catalyst can be recycled upto six times.

Polymer anchored oxovanadium catalyst was synthesized and characterized. Its catalytic activity was evaluated for the oxidation of various primary and secondary alcohols with molecular oxygen under mild reaction conditions. This catalyst was also effective for the oxidative bromination reaction of organic substrates with 90–100% selectivity of mono substituted products with H2O2/KBr at room temperature. The above reactions require low temperature, short time period and most importantly all the above reactions occur in aqueous medium. The developed catalyst can be facilely recovered and reused six times without significant decrease in activity and selectivity.

The aerobic oxidation of alcohols in aqueous medium is efficiently catalysed by polymer anchored oxovanadium catalyst. It was also effective for the oxidative bromination reaction with 90–100% selectivity of mono substituted products. This catalyst was reusable upto six times without significant loss of its initial activity.Figure optionsDownload as PowerPoint slide