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S. Swami and R. Shrivastava
Al 2 O 3
Al 2 O 3
Al 2 O 3
Al 2 O 3
Fe 2 O 3
Al 2 O 3
Fe 2 O 3
Ag
Ag-Al 2 O 3 @Fe 2 O 3
Ag
Fe 2 O 3
Fe(NO 3 ) 3. 9H 2 O
= Fe
3+
NH 4 OH
= FeOH 3
Calcination, 873K, 6Hrs
Al 2 O 3 @Fe 2 O 3
Ag-NPs
Scheme 10 Synthesis of mesoporous Ag-Al 2 O 3 @Fe 2 O 3 core–shell nanocatalyst
NH 2
N 3
N
N
N
Conc.Hcl:H 2 O(1:1)
NaNO 2 , 0
o
C -5
o
C
NaN 3
Phenylacetylene
Ag-Al 2 O 3 @Fe 2 O 3
Scheme 11 One–pot synthesis of 1,4-diphenyl-1H-1,2,3-triazole
Ag-Al 2 O 3 @Fe 2 O 3
OCOCH 3
OH
CH 3 COOH
Scheme 12 Acylation of benzyl alcohol
thereafter the obtained amino-coated Fe 3 O 4 nanoparticles were reacted with acryloyl chloride led to acryloxy groups-functionalized magnetic Fe 3 O 4 nanoparticles.
These acryloxyl groups-functionalized magnetic Fe 3 O 4 nanoparticles reacted with
tetraethyldiethylenetriamine to get Fe 3 O 4 -TEDETA Nps. Finally, the complexes
CuCl 2 /Fe 3 O 4 -TEDETA were prepared by the reactions of copper(II) chloride with
the individual ligands MNO-TEDETA ethanol. These synthesized CuCl 2 /Fe 3 O 4 -
TEDETA used as catalyst in condensation of 1-aminobenzamide with aldehyde to
afford the corresponding 2,3-dihydroquinazolin-4(1H)-one derivatives in excellent
yield at reflux conditions (Ghorbani-Choghamarani and Norouzi 2014).