Comparison of the effects of using different catalysts for the synthesis of products by C–N coupling.

Entry	Catalyst	Product	Ref.
1	MCS-BAT-Cu(ii)-catalyzed	1-Aryl-5-amino-1H-tetrazoles	59
2	Magnetic γ-Fe2O3@Cu-LDH	Quinolines	48
3	Pd/Cu-free co-catalyzed	Abemaciclib and Fedratinib	60
4	PNP-SSS	Buchwald–Hartwig C–N cross coupling	61
5	[Cu(BDC-NH2)@Schiff base Pd(ii)]catalyst	1-(2-Oxoethyl)-1H-pyrrole-2-carbonitriles with p-tolylboronic acid	This work