Process for the preparation of N-acetoacetyl-2,5-dimethoxy-4-chl

Details Process for the preparation of N-acetoacetyl-2,5-dimethoxy-4-chl Process for the preparation of N-acetoacetyl-2,5-dimethoxy-4-chl

1976-04-27

1977-08-16

Demers, Arthur P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C10200

Patent

active

040426220

ABSTRACT:
N-acetoacetyl-2,5-dimethoxy-4-chloroanilide is obtained in high yield and purity by suspending 2,5-dimethoxy-4-chloroaniline in water and adding the complete amount of diketene necessary altogether at the beginning of the reaction. The product is obtained in a purity allowing its use as an azoic coupling component without purification.

REFERENCES:
patent: 1982675 (1934-12-01), Law
patent: 2152132 (1939-03-01), Boese
patent: 2174239 (1939-09-01), Gleason
patent: 2700037 (1955-01-01), Schmid
patent: 2714117 (1955-07-01), Lacey et al.
patent: 2913495 (1959-11-01), Goldsmith
patent: 3063899 (1962-11-01), Ehrhart et al.
patent: 3121743 (1964-02-01), Branch
patent: 3304328 (1967-02-01), Pelley

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