Copper-functionalized magnetic mesocellular foams: as a magneticallyrecoverable nanocatalyst for carbon-selenuim bonds formation

With the development of nanoscience and nanotechnology, chemists achieved the variouscatalytic reactions due to a wide variety of nanostructured catalysts or immobilization ofhomogeneous catalysts on nanostructured supports[۱]. Among the various nanoparticles,mesoporous silica compounds especially siliceous mesocellular foams (MCFs) due to a threedimensionalmesoporous structure with internal connectivity, large pore size (diameter ۲۰–۵۰nm), uniform pore size ranges, large pore volumes, high surface areas (>۱۰۰۰ m۲ g-۱), a largenumber of silanol groups that contribute to high catalyst loading and high thermal and chemicalstability are good candidates for catalyst supports[۲, ۳]. The formation of C–Se bonds usingcatalytic methods is very popular in diverse fields including organic synthesis, thepharmaceutical industry, and materials science[۴].In this work, we report a new system for the synthesis of phenyl aryl selenides in thepresence of copper-modified-MCF as a novel magnetically reusable nanocatalyst(Scheme ۱).The significant advantages of the designed system include simple separation, reusable forseveral times, eco-friendly, high stability and good to excellent yields of products in relativelymild conditions