Entry

R

Product

Yield/ee (%)^a

Yield/ee (%)^b

1^c

H

2a

66/84(R)

60/83(R)

2 ^c

2-Br

2b

60/66(R)

65/77(R)

3 ^c

3-Br

2c

63/76(R)

65/82(R)

4 ^c

3-CF₃

2d

57/79(R)

62/85(R)

5 ^c

3-OMe

2e

60/80(R)

68/81(R)

6 ^c

4-F

2f

55/67(R)

60/70(R)

7 ^c

4-Cl

2g

65/84(R)

60/72(R)

8 ^c

4-Br

2h

66/86(R)

55/76(R)