Table 3.

Comparison of the proposed catalyst with reported catalysts for the unsymmetrical Hantzsch reaction.

Catalyst	Amount	Time (min)	Solvent	Temp. (°C)	Yield (%)	Ref.
SBA-15@Glycine-Cu	80 mg	90	Ethanol	60	96	16
Fe3O4@SiO2-/ZnCl2	50 mg	25	–	110	90	17
MCM-41@PDCA-C	10 mg	10	–	100	94	22
IRMOF-3	4 mol%	180	–	60	91	61
MoO3 promotedCeO2-ZrO2	200 mg	45	Ethanol	reflux	93	23
Fe3O4@MCM-41@Cu-P2C	20 mg	200	PEG	80	92	62
MSN/C3N4/CNH	10 mg	15	–	50	94	Our work