Process for preparing 1-amino-naphthalene-7-sulphonic acid

Details Process for preparing 1-amino-naphthalene-7-sulphonic acid Process for preparing 1-amino-naphthalene-7-sulphonic acid

1976-07-16

1978-05-23

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260581, C07C14360, C07C 8504

Patent

active

040910130

ABSTRACT:
1-Amino-naphthalene-7-sulphonic acid is prepared by reacting 1-chloro-naphthalene-4,7-disulphonic acid with ammonia at elevated temperatures in the presence of water and optionally in the presence of a catalyst such as a copper catalyst.

REFERENCES:
patent: 2040396 (1936-05-01), Morrell et al.
patent: 2266228 (1941-12-01), Matthaeus et al.
patent: 2490813 (1949-12-01), Hughes et al.
patent: 3231616 (1966-01-01), Jones
patent: 3865876 (1975-02-01), Chenevey et al.

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