Process for the production of an aromatic hydrazo compound
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United States of America Patent
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Sep 15, 1998
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app pub date -
Jul 27, 1992
filing date -
Apr 5, 1989
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Abstract
A process for the production of an aromatic hydrazo compound, which comprises catalytically reducing an aromatic nitro compound with hydrogen in an alkali metal hydroxide aqueous solution and a hydrogen-donating solvent in the presence of a noble metal catalyst and a quinoid compound cocatalyst at a high temperature under a high pressure, the hydrogen-donating solvent being a cyclic hydrocarbon in which hydrogen atoms are attached to its basic skeleton having 1 to 4 aromatic rings and at least one unsaturated carbon-carbon bond remains.
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