Table 2. Chemoselective hydrogenation of N-heteroarenes ^a .

^aReaction conditions: substrate (0.25–0.40 mmol) and Fe(1)/L4(4.5)@C-800 (10 mol% Fe) in ⁱPrOH/H₂O (3/1) (1.2–2.0 mL), heated at 120–150 °C for 70–72 h in the presence of H₂ (3–5 MPa), all yields are isolated unless otherwise mentioned (see ESI for details).

^bReaction was performed in MeOH/H₂O (3/1).

^cReaction was carried out at 120 °C and H₂ (3 MPa).

^dHydrodechlorination product 2 could be detected in 7% yield.

^eFe(1)/L4(4.5)@C-800 (15 mol% Fe) was used.