FIELD: chemistry.
SUBSTANCE: invention relates to a novel method of producing halogen-substituted aromatic amines. The method includes hydrogenating halogen-substituted aromatic nitro-compounds in an isopropanol medium in the presence of aluminium oxide as a heterogeneous catalyst. The process is carried out by adding supercritical isopropyl alcohol at temperature of 250-340°C and pressure of 150-220 atm.
EFFECT: conducting the process in said conditions considerably shortens reaction time (less than 6 minutes instead of 3,5-6 hours), does not require use of expensive catalysts and enables to obtain products with high selectivity, output and conversion.
2 cl, 5 tbl, 4 ex
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Authors
Dates
2014-10-27—Published
2013-07-16—Filed