Table 2.

Reactivity and selectivity of 1·Mb and 1·Mb(A71S) in the sulfoxidation of thioanisole at pH= 7.^a

Entry	Catalyst	e.e. of sulfoxideb	Yield% of sulfoxideb	Yield% of sulfone
1	1·Mb	60±1.2	49.4±1.8	0c
2	1·Mb (A71S)	58±0.9	50.0±1.2	2.1±0.8

^aReactions were performed with 5 mM substrate, 10 mM H₂O₂, and 0.5 mM catalyst in 200 μL Hepes buffer (50 mM, pH= 7, 5% MeOH) at 4°C for 10 min.

^bYield and e.e. were determined by GC with a chiral G-TA column using acetophenone as an internal standard.

^cSulfone was not detected.