Table 4. Survey of Pseudo Halide Substrates^a.

entry	X	yield (%)b
1	Me	0
2	Ac	43
3	Piv	47
4	Ms	54
5	Ts	62
6	Tf	57
7	CO2tBu	75
8	SO2NEt2	89
9	CONEt2	91

^aReaction conditions: phenol-based electrophiles(1 mmol), phenylboronic acid (1 mmol), NaOC₂H₄OH (2.0 mmol), Fe₃O₄@SiO₂–EDTA–Ni(II) catalyst (0.018 g, 1 mol %), EG (3 mL), 100 °C, 6 h.

^bIsolated yield.