Table 6 Comparison results of Sm-bis(PYT)@boehmite with other catalysts for the synthesis of 5-phenyl-1H-tetrazole.

1

CoY Zeolite

DMF, 120 °C

14

90

⁹⁶

2

MCM-41@Cu

H₂O, 80 °C

0.75

68

⁹⁷

3

Cu–Zn alloy nanopowder

DMF, 135 °C

10

95

⁹⁴

4

B(C₆F₅)₃

DMF, 120 °C

8

94

⁹⁸

5

Fe₃O₄@SiO₂/Salen Cu(II)

DMF, 120 °C

7

90

⁹⁹

6

Fe₃O₄/ZnS HNSs

DMF, 120 °C

24

81.1

¹⁰⁰

7

Mesoporous ZnS

DMF, 120 °C

36

86

¹⁰¹

8

AgNO₃

DMF, 120 °C

5

92

¹⁰²

9

CuFe₂O₄

DMF, 120 °C

12

82

¹⁰³

10

Nano ZnO/Co₃O₄

DMF, 130 °C

12

90

¹⁰⁴

11

Cu-TBA@biochar

PEG-400, 130 °C

7

98

⁷³

12

l-Cysteine-Pd@MCM-41

PEG-400, 100 °C

3

98

⁷⁸

13

Ni-MP(AMP)₂@Fe-biochar

PEG-400, 120 °C

4

92

⁶²

14

Cu(II)-Adenine-MCM-41

PEG-400, 130 °C

5

92

¹⁰⁵

15

Pd‐Arg@boehmite

PEG-400, 120 °C

7

97

⁶⁰

16

ZrO-SB-APT@MCM-41

PEG-400, 120 °C

2

86

¹⁰⁶

17

Cu-DABP@Fe₃O₄/MCM-41

PEG-400, 130 °C

2

99

¹⁰⁷

18

Sm-bis(PYT)@boehmite

PEG-400, 120 °C

1.5

96

This work