Screening the reaction conditions^a.

Entry	Solvent	Catalyst (mol%)	Temp. (°C)	TBHP (mmol)	Yieldb (%)
1	Water	1	40	2	40
2	EtOH	1	40	2	75
3	CH3CN	1	40	2	60
4	Solvent free	1	40	2	92
5	Solvent free	1	RT	2	50
6	Solvent free	1	40	2	92
7	Solvent free	1	60	2	65
8	Solvent free	—	40	2	25
9	Solvent free	0.5	40	2	65
10	Solvent free	1	40	2	92
11	Solvent free	1.5	40	2	92
12	Solvent free	2	40	2	94
13	Solvent free	1	40	0.5	60
14	Solvent free	1	40	1	92
15	Solvent free	1	40	1.5	85
16	Solvent free	1	40	2	70

^aReaction conditions: benzyl alcohol (1 mmol), 30 min.

^bYields of product isolated.