Diene

Molar ratio

diene:HQ

NQ content (C_NQ), %

NQ yield (Y_NQ), %

DMB

1.2:1

52^a

38

Piperylene

1:1

97

62

1,3-butadiene, atmosphere

>1:1

12^b

6

1,3-butadiene,

1:1

99

51

1,3-cyclohexadiene

1:1

87^c

84^c