Functionalization of the magnetic chitosan support with dipyridylamine as a nitrogen-rich pincer ligand for Pd immobilization and investigation of catalytic efficiency in Sonogashira coupling

Modification of Pillared Intercalated Montmorillonite Clay as Heterogeneous Pd Catalyst Supports

“…Whereas, electron-donating groups have an opposite effec on the breaking of C-Br bonding, resulting in low yield (entry 11, 12). For a similar reaction with similar reaction conditions, the novel catalysts prepared in this work show superio comprehensive catalytic performances to other recent Pd heterogeneous catalytic systems [28][29][30][31]. Besides the model reaction, the Pd@polymer/AlMn 0.15 -PM nanocomposite catalysis system can be well extended to the Sonogashira coupling reactions of other aryl halides with phenyl acetylene.…”

“…Whereas, electron-donating groups have an opposite effect on the breaking of C-Br bonding, resulting in low yield (entry 11, 12). For a similar reaction with similar reaction conditions, the novel catalysts prepared in this work show superior comprehensive catalytic performances to other recent Pd heterogeneous catalytic systems [28][29][30][31].…”