Screening the reaction parameters for the synthesis of 6d.

Entry	Fe3−xBixO4/SiO2@l-ArgEt3+I−/Zn(ii) (g)/solvent (3 mL)/temperature (°C)	Time (h)	Yield (%)
1	0.032/—/rt	24	32
2	0.032/—/60	12	20
3	0.032/H2O/rt	16	10
4	0.032/EtOH/rt	16	62
5	0.04/EtOH/rt	12	51
6	0.02/EtOH/rt	16	67
7	0.024/EtOH/rt	20	67
8	0.012/EtOH/rt	9	83
9	0.012/EtOH–H2O (1 : 1)/rt	12	10
10	0.012/EtOH–H2O (1 : 1)/50	10	40
11	0.012/PEG (2000)/rt	10	5
12	0.012/EtOH/0	20	—