Fig. 6: Substrate scope of aminocarbonylation.
From: Constructing multiple active sites in iron oxide catalysts for improving carbonylation reactions

Reaction conditions: aryl halide (1.0 mmol), amines (1.5 mmol), 1.0 Fe2O3-Ovac (80 mg), Et3N (2.0 equiv.), CO (1.0 MPa), 1,4-dioxane (2.0 mL), 160 °C, 24 h, isolated yields; a36 h; b48 h; c72 h; 3a, 3v, 3x, 3y, 3z and 3aa were produced using iodobenzene; bromobenzene; 1-fluoro-4-iodobenzene; 1-iodo-4-isocyanobenzene; 1-bromo-4-isocyanobenzene and 1-bromo-4-fluorobenzene as substrates respectively.