Table 2.

Cyclohexene cyclic carbonate synthesis from cyclohexene oxide catalysed by A and [Bu₄N]Br.^[a]

Entry	Catalyst [mol %]	T [°C]	p [bar][b]	t [h]	Conv. [%][c]	Chemoselectivity 11 [%][c]
1	A (2)+[Bu4N]Br (3)	120	75	4	97	84
2	A (2)	120	75	4	78	69
3	[Bu4N]Br (3)	120	75	4	60	88
4	none	120	75	4	0	–

[a] Reaction conditions: 10 (6.3 mmol), biphenyl (10 mol %) as an internal standard. [b] Pressure of CO₂ at 40 °C. [c] Derived from quantitative ¹H NMR spectroscopy.