Entry

R₂ (mmol)

Aldehyde (mmol)

m-CPBA (mmol)

Oxaziridine Yield (%)

1

Bn (4.6)

6.6

6.9

(4) 93

2

(S)-α-Me-Bn (4.1)

4.9

6.1

(12) 80^a

3

H (NH₄OH) (9.3)

4.6

6.9

(13) 74^a

4

tert-Bu (4.6)

6.6

6.9

NR

5

Cy (4.6)

6.6

6.9

NR