Entry

Cobalt salt (mol%)

Yield/%

Selectivity

2

1

2/1

1

Co(ClO4)2∙6H2O (10)

8.2

40.1

16.9/83.1

2

Co(ClO4)2∙6H2O (25)

39.1

18.0

68.5/31.5

3

Co(ClO4)2∙6H2O (50)

52.4

7.8

87.0/13.0

4

Co(ClO4)2∙6H2O (75)

61.7

4.0

93.9/6.1

5

Co(ClO4)2∙6H2O (100)

71.5

0.0

100.0/0.0

6

Co(BF4)2∙6H2O (10)

10.3

32.0

24.3/75.7

7

Co(BF4)2∙6H2O (25)

44.8

12.2

78.6/21.4

8

Co(BF4)2∙6H2O (50)

62.3

7.4

89.4/10.6

9

Co(BF4)2∙6H2O (75)

66.1

0.0

92.4/7.6

10

Co(BF4)2∙6H2O (100)

75.8

0.0

100.0/0.0