Abstract

This review describes recent progresses in the selective reduction of aromatic nitro-groups to amines catalyzed by homogeneous ruthenium or rhodium catalysts under CO/H2O conditions. These catalytic reactions are useful from both synthetic and industrial viewpoints, because the after-treatment of by-products can be simplified in comparison to the conventional methods, since the reaction proceeds with extremely high selectivity. Efficient and convenient palladium–phosphine catalysts for hydrocarbonylation of chlorobenzenes affording benzoic acid derivatives in high yields are also described.

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