Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1991-11-22
1993-08-31
Hollrah, Glennon H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
560344, 564 60, 564 61, C07C27576
Patent
active
052411184
ABSTRACT:
A process for preparing trisubstituted ureas is disclosed. A nitroarene is reacted with carbon monoxide and a secondary amine in the presence of a Group VIII transition metal catalyst and optionally one or more promoters selected from primary amines, halide ion-containing compounds, and chelating phosphorus and nitrogen compounds.
REFERENCES:
patent: 3993685 (1976-11-01), Zajacek et al.
patent: 4052454 (1977-10-01), Zajacek et al.
patent: 4871871 (1989-10-01), Shawl et al.
patent: 4873364 (1989-10-01), Shawl et al.
patent: 4883908 (1989-11-01), Shawl et al.
patent: 5099021 (1992-03-01), Worther et al.
J. Org. Chem. 40 (1975) 2819.
Helv. Chim. Acta. 55 (1972).
Chem. Abstracts 90 22659g (Swiss Patent No. 605,699) (1979).
J. Mol. Catal. 59 (1990) L15.
J. Organometal. Chem. 290 (1985) 249.
Chem. Abstracts 104 224726v (East German Patent No. 227,700) (1986).
West German Patent No. 3,405,582 (Chem. Abstracts 102 78596t) (1985).
Chem. Abstracts 91 20147k (West German Patent No. 2,742,158) (1975).
J. Org. Chem. 53 (1988) 1243.
Kesling, Jr. Haven S.
Saxton Robert J.
Shawl Edward T.
Shum Wilfred P.
Zajacek John G.
Arco Chemical Technology L.P.
Hollrah Glennon H.
Schuchardt Jonathan L.
LandOfFree
Process for the preparation of trisubstituted ureas by reductive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of trisubstituted ureas by reductive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of trisubstituted ureas by reductive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2298999