Select. (%)

Entry

Cat.

Catalyst

Mol cat./mol olefin

Conversion (%)

β-adduct

α-adduct

propylbenzene

Dehydrogenative silylation

1

2

3

4

Karstedt

Karstedt

Karstedt

Karstedt

10−5

3 × 10−5

10−4

10−3

96

85

71

64

100

99.7

98

96.8

/

/

/

/

/

/

2

3.2

/

/

/

/

5

6

Platinum Black

Platinum Black

10−3

5 × 10−3

94

88

100

98.1

/

/

/

1.9

/

/