Optimization of reaction conditions for the acylation of benzyl alcohol catalyzed by Fe₃O₄@SiO₂@K₁₀^a.

Sr. no.	Solvent	Catalyst (mol%)	Time (min)	Yieldb (%)
1	Ethanol	15	360	40
2	Water	15	360	35
3	THF	15	360	50
4	DCM	15	90	75
5	Toluene	15	120	60
6	CH3CN	15	70	80
7	None	15	20	99
8	None	10	70	88
9	None	20	20	99
10	None	None	720	00
11	None	Fe3O4 nanoparticles	20	00
12	None	Fe3O4@SiO2	20	00

^aReaction conditions: benzyl alcohol (1 mmol), acetic anhydride (1.5 mmol), room temperature and solvent (5 ml).

^bIsolated yields.