Application and characterization of eggshell as a new biodegradable and heterogeneous catalyst in green synthesis of 7,8-dihydro-4H-chromen-5(6H)-ones
Keywords: زیست تخریب پذیر; Eggshell; Environmentally friendly; Heterogeneous catalyst; Biodegradable; Bioactive catalyst; 7,8-Dihydro-4H-chromen-5(6H)-ones