A simple and efficient procedure for the synthesis of unsymmetrical diaryl selenides has been developed by magnetically separable CuFe₂O₄ nanoparticle catalyzed reactions of organoboranes with PhSeBr in recyclable PEG-400 medium at 80 °C and Cs₂CO₃ as base. Using this protocol, a variety of unsymmetrical selenides were obtained in good to excellent yields. The copper ferrite nanoparticles were magnetically separated, recycled, and reused up to four cycles.

(2013). Recent Developments in the Synthesis of Quinoxaline Derivatives by Green Synthetic Approaches. Organic Preparations and Procedures International: Vol. 45, No. 1, pp. 1-27.