Introduction of efficient catalytic system for the regioselective aerobic bromination of aromatic compounds

Abstract

A highly regioselective aerobic bromination of aromatic compounds has been achieved using Fe₃O₄@SiO₂/CuO nanocatalyst and O₂ as a green oxidant. In this procedure, the reactions gave high yields and para-selectivity for the various aromatic compounds. Mechanistic studies are described, and the possible mechanisms are proposed. Recyclability of the Fe₃O₄@SiO₂/CuO nanocatalyst has also been explored upon aerobic bromination of aromatic compounds. The nanocatalyst can be reused five times without any significant decrease in the catalytic activity and selectivity.

Graphical Abstract

Keywords:

• Aerobic bromination
• Fe₃O₄@SiO₂/CuO
• potassium bromide
• regioselective

Acknowledgments

The authors thankful to the research council of Shahrekord and Yazd University for their supports of this research.