Method of producing aminobenzimidazolones

Details Method of producing aminobenzimidazolones Method of producing aminobenzimidazolones

1981-06-22

1983-07-12

Schwartz, Richard A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

564441, C07D23526

Patent

active

043932169

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##

REFERENCES:
Sonoda, N., et al., J. Am. Chem. Soc., 93, 6344, (1971).
Kondo, K., et al., Angew. Chem. Int. Ed. Engl., 18, 691, 692, (1979).
Falbe, J. (Editor), New Syntheses with Carbon Monoxide, Springer-Verlag, New York, 1980, pp. 291-292, 296-297, 303-307.

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