Synthesis and characterization of recyclable and recoverable MMT-clay exchanged ammonium tagged carbapalladacycle catalyst for Mizoroki-Heck and Sonogashira reactions in ionic liquid media

▶ An ammonium tagged carbapalladacycle has been synthesized in good overall yield and is well characterized. ▶ An organic-inorganic hybrid system has been synthesized by intercalating the synthesized carbapalladacycle in between the layers of Na+-MMT clay. ▶ The ammonium tag facilitates the intercalation of carbapalladacycle by increasing organophilicity of clay. ▶ The prepared carbapalladacycle and its clay-nanocomposite have been efficiently used as recyclable catalytic system in ionic liquid media for carrying out Mizoroki-Heck and Sonogashira reactions with high TONs/TOFs. ▶ The catalytically inert ammonium tag does not interfere in the reaction, instead being ionophilic it enhances the immobilization of carbapalladacycle in ionic liquid medium.