Catalytic preparation of carbonamides

Details Catalytic preparation of carbonamides Catalytic preparation of carbonamides

1984-07-03

1987-04-07

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

564138, 564139, 564141, 564143, C07C103133

Patent

active

046559728

ABSTRACT:
Carbonamides are prepared from carboxylic acids and ammonia in the presence of a catalytic amount of a hydrated oxide.
Preferably a hydrated titanium-, zirconium- or tin oxide in an amount between 0.05 to 10% by weight is used. The hydrated oxide contains at least 4% of water.

REFERENCES:
patent: 2070991 (1937-02-01), Hund et al.
patent: 3801610 (1974-04-01), Werdehausen et al.
patent: 3816483 (1974-06-01), Werdehausen et al.
patent: 3920523 (1975-11-01), Lichtenwalter et al.
patent: 4277410 (1981-07-01), Li et al.

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