Process for preparing 1-amino-2-naphthol-4-sulphonic acid (amido

Details Process for preparing 1-amino-2-naphthol-4-sulphonic acid (amido Process for preparing 1-amino-2-naphthol-4-sulphonic acid (amido

1982-11-05

1984-01-24

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14366

Patent

active

044276010

ABSTRACT:
The process for preparing 1-amino-2-naphthol-4-sulphonic acid by acidifying 3-oxo-4-hydroxyimino-1,2,3,4-tetrahydronaphthalene-1-sulphonic acid or its alkali metal salt in the presence of hydrogen sulphite is carried out in the presence of iron ions.

REFERENCES:
N. Donaldson, "The Chemistry and Technology of Naphthalene Compounds", Edward Arnold (Publishers) Ltd., London, 1958, pp. 325-326.

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