TABLE 1.

Determination of the best conditions such as the catalyst, amount of catalyst, and temperature for the synthesis of 7a.

Entry	Catalyst	Temp. (°C)	Catalyst (g)	Time (h)	Yield % a
1	None	r.t	-	10	-
2	None	100	-	8	-
3	CdO-NPs	r.t	0.01	4	45
4	CdO-NPs	r.t	0.015	3	58
5	CdO-NPs	r.t	0.02	3	65
6	Fe3O4-MNPs	r.t	0.015	3	35
7	Ag NPs	r.t	0.015	3	78
8	MWCNT	r.t	0.015	3	27
9	CuO-NPs	r.t	0.015	3	38
10	Ag/Fe3O4/CdO	r.t	0.015	3	80
11	Fe3O4/CdO	r.t	0.015	3	70
12	Ag/CdO@ MWCNT	r.t	0.015	3	78
13	Fe3O4/CdO/MWCNT	r.t	0.015	3	70
14	CdO@ MWCNT	r.t	0.015	3	68
15	Ag/Fe3O4/MWCNT	r.t	0.015	3	75
16	Ag/Fe3O4/CdO@MWCNT	r.t	0.015	3	87
17	Ag/Fe 3 O 4 /CdO@MWCNT	r.t	0.02	3	95
18	Ag/Fe3O4/CdO@MWCNT	reflux	0.02	3	95
18	Ag/Fe3O4/CdO@MWCNT	r.t	0.015	3	87
19	Ag/Fe3O4/CdO@MWCNT	r.t	0.025	3	95

^aIsolated yields. Bold indicates best condition for performing reactions.