FIELD: chemistry.
SUBSTANCE: invention relates to an improved method for catalytic hydrogenation of an aromatic or heteroaromatic nitro compound, substituted with one or more substitutes selected from a group consisting of halogen atoms and oxygen-containing or sulphur-containing groups, to a corresponding amine in the presence of a platinum catalyst which includes elementary platinum on a support. The platinum catalyst is modified with a molybdenum compound and a phosphorus compound, where the phosphorus compound is hypophosphorous acid or a salt thereof, or a reaction product thereof. The invention also relates to a modified supported platinum catalyst used in said method.
EFFECT: method enables selective reduction of aromatic and heteroaromatic nitro compounds, substituted with halogens or oxygen-containing or sulphur-containing substitutes, to obtain corresponding amines with high output, without the need for rigid reaction conditions or unjustifiably large amounts of the catalyst.
12 cl, 2 ex
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