Entry

Catalyst (mol%)

Time (min)

Temperature (℃)

Yield (%)^b

1

[C₂O₂BBTA][TFA] (15)

10

25

NR

2

[C₂O₂BBTA][TFA] (15)

10

60

27

3

[C₂O₂BBTA][TFA] (15)

10

80

38

4

[C₂O₂BBTA][TFA] (15)

10

100

73

5

[C₂O₂BBTA][TFA] (15)

10

125

87

6

[C₂O₂BBTA][TFA] (15)

10

140

87

7

-

10

125

NR

8

[C₂O₂BBTA][TFA] (1)

10

125

43

9

[C₂O₂BBTA][TFA] (5)

10

125

73

10

[C₂O₂BBTA][TFA] (10)

10

125

81

11

[C₂O₂BBTA][TFA] (20)

10

125

85

12

[C₂O₂BBTA][TFA] (15)

1

125

NR

13

[C₂O₂BBTA][TFA] (15)

2.5

125

49

14

[C₂O₂BBTA][TFA] (15)

5

125

73

15

[C₂O₂BBTA][TFA] (15)

7.5

125

78

16

[C₂O₂BBTA][TFA] (15)

15

125

81

17

[C₂O₂BBTA][TFA] (15)

20

125

82