Table 2. Estragole Isomerization in Biphasic Systems Containing ILs and Charge-Tagged Ligands^a.

entry	ligand	conversion (%)	selectivity (%)b	Ru content (mg/kg)c
1		100	96	160 ± 4
first recharge		39	82
second recharge		7	86
2	L1	100	96	61.1 ± 2.1
first recharge		88	77
second recharge		17	82

^aReaction conditions: estragole 13.0 mmol, estragole/1 = 2500, BMI·PF₆ 0.5 g, t = 20 min and 1 h, T = 80 °C, estragole filtered over aluminum oxide, and products separated by decantation.

^bSelectivity for trans-anethole.

^cRu content in the organic phase.