Table 3 Comparison of the proposed catalyst with reported catalysts for the unsymmetrical Hantzsch reaction.

From: Hantzsch reaction using copper nitrate hydroxide-containing mesoporous silica nanoparticle with C3N4 framework as a novel powerful and reusable catalyst

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

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