Ring-opening reactions of 1b with different catalysts and equimolar alcohols A_x.

Runa	Alcohol	Catalyst	Loadingb (equiv.)	Solvent	2(Ax) : 2bc
1	A1	DPP	0.1	Toluene	100 : 0
2	A2	DPP	0.1	Toluene	55 : 45
3	A3	DPP	0.1	Toluene	55 : 45
4	A3	DPP	0.1	CHCl3	3 : 97
5	A3	TU/DBU	0.02, 0.02	Toluene	0 : 100
6	A3	TU/DBU	0.02, 0.02	CHCl3	0 : 100
7	A3	Sn(Oct)2	0.02, 0.02	Toluene	0: 100
8	A3	Sn(Oct)2	0.02, 0.02	CHCl3	0 : 100

^aAll reactions were conducted for 1 h at 20–25 °C (room temperature).

^bRelative to 1b.

^cDetermined using ¹H NMR.