Table 4.

Comparison of Fe₃O₄@SiO₂-PMA-Cu catalytic activity with MgFe₂O₄/Cu for the 1,2,3-triazole click synthesis.

Entry	Catalyst system	Conditions	Time (h)	Yield (%)	Ref
1	Fe3O4@SiO2-PMA-Cu	H2O/55 °C	1.5	98	a
2	MgFe2O4/Cu	H2O/60 °C	2.5	96	31

All reactions were carried out with 1 mmol of styrene episulfide, phenylacetylene (1 mmol) and sodium azide (1.2 mmol).

^aThe present method.