Table 2.

Oxidation of sulfides to sulfoxides with hydrogen peroxide ^a.

Entry	Substrate	Time (min)	Conversion (%)	Sulfoxide b	Yield (%)c
1		80	100		99
2		120	100		93
3		75	100		94
4		50	100		92
5		35	100		90
6		70	100		93
7		50	100		91
8		60	100		92
9		48	100		90
10		30	100		96
11		26	100		93
12		45	100		91

^a 2 mmol of substrate at room temperature and 8 mmol of 30% aqueous H₂O₂, in glacial acetic acid (2 mL) at room temperature.

^b The products were identified by comparison of physical and spectroscopic properties with authentic compounds.

^c Isolated yields on the basis of the weight of the pure product obtained.