immobilized copper complex on biodegradable cellulose: catalytic application for the green synthesis of 2h-indazolo[1,2-b]phthalazine trione derivatives and synthesis of cuo nanoparticles

An immobilized copper (ii) complex on micro cellulose (cell-dabco-cu) was synthesized and characterized by ft-ir, tga, and sem. the catalytic activity of cell-dabco-cu was evaluated as a recoverable and green catalyst for the four-component synthesis of 2h-indazolo[1,2-b]phthalazine trione derivatives in solvent-free conditions. the notable advantages of this procedure include excellent yields, short experimental time, and easy preparation of the catalyst. the feature of this work is using of cell-dabco-cu as a starting material to prepare single-phase cuo nanoparticles (cuo nps) via a solid-state decomposition procedure. the cuo nanoparticles with an average size of 40 nm were obtained by the direct calcination of cell-dabco-cu.