Comparison of the catalytic performances of the as-prepared nanocatalyst with the reported ones.

Entry	Catalyst	Condition	Time (min)	Yield (%)	Ref.
1	AcOH	MW, r.t.	9	92	34
2	Gl.AcOH	70 °C	180	85	45
3	Oxalic acid	EtOH/H2O, reflux	120	92	35
4	Et3N	MeCN/EtOH, r.t.	1440	86	38
5	DABCO	EtOH, reflux	600	60	24
6	Pyridine	EtOH, r.t.	45	90	36
7	β-Cyclodextrin	EtOH/H2O, 70 °C	50	92	37
8	M-MSNs	EtOH, 78 °C	70	67	—
9	CuO(QDs)	EtOH, 78 °C	70	81	—
10	M-MSNs/CuO(QDs)	EtOH, 78 °C	70	95	This work