Entry

R₁

Oxaziridine Yield (%)^a

1

Me (5)

75

2

n-Bu (6)

68^b

3

i-Bu (7)

93

4

tert-Bu (4)

93

5

Cy (8)

69

6

Ph (9)

86

7

4-MeOC₆H₄ (10)

79

8

4-NO₂C₆H₄ (11)

82