Method of producing aminobenzimidazolones
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United States of America Patent
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Jul 12, 1983
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N/A
app pub date -
Jun 22, 1981
filing date -
Dec 30, 1980
priority date (Note) -
Expired
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Abstract
A method of producing aminobenzimidazolones which comprises reacting a compound I having the general formula ##STR1## wherein X, Y and Z independently represent a substituent selected from the group consisting of a nitro group and an amino group, with carbon monoxide in solvent in the presence of selenium and an inorganic base or an organic base, and in the presence of water when the compound I has nitro groups, thereby providing a compound II having the general formula ##STR2##
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