1

SiCl₄

CH₂Cl₂/60˚C - 70˚C

3

92

16

2

SmCl₃

Solvent free/120˚C

8

98

17

3

Cellulose sulfonic acid

Solvent free/110˚C

6

95

30

4

Trimethyl silyl chloride

CH₃CN/reflux

8 - 10

72 - 84

25

5

ZrOCl₂・8H₂O

Solvent free/120˚C

0.66

95

27

6

Amberlyst-15

CH₃CN/reflux

5

90 - 96

28

7

ZnO-acetyl chloride

16

96

26

8

p-dodecyl benzenesulfonic acid

Solvent free/80˚C

10 - 60 min

80 - 93

21

9

Trichloro isocyanuric acid

Ethanol/reflux

0.5

95

20

10

Ni_0.5Co_0.5Fe₂O₄ NPs’

Ethanol-water/110˚C

25 min

95

Present work