Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1989-11-15
1992-02-11
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
546171, 546311, 548301, 552236, 552238, 562 58, 564 86, 564416, 564417, 564418, 564420, C07C20936
Patent
active
050877550
ABSTRACT:
A process for producing an aromatic amine under moderate conditions is provided wherein a catalyst higher in activity than conventional catalysts is used. Reduction of an aromatic nitro compound under a CO/H.sub.2 O system is conducted using a rhodium compound catalyst in the presence of an aqueous alkali solution such as aqueous sodium hydroxide solution. Alternatively, an aromatic nitro compound is reduced under a CO/H.sub.2 O system using a rhodium compound or a ruthenium compound catalyst in the presence of the aqueous alkali solution and additionally at least one compound of amine compounds, diamine compounds, phosphine compounds, phosphite compounds, and diphosphine compounds.
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Ishino Masaru
Nomura Kotohiro
Raymond Richard L.
Sumitomo Chemical Company Limited
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