Process for the preparation of 4,4'-diamino-1,1'-dianthrimides

Details Process for the preparation of 4,4'-diamino-1,1'-dianthrimides Process for the preparation of 4,4'-diamino-1,1'-dianthrimides

1982-11-29

1984-06-05

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C01C 5016

Patent

active

044527420

ABSTRACT:
Process for the preparation of 4,4'-diamino-1,1'-dianthrimides, characterized in that a mixture of an optionally substituted 1,4-diaminoanthraquinone and an optionally substituted 1-aminoanthraquinone in 30-60% strength H.sub.2 SO.sub.4, preferably 40-60% strength H.sub.2 SO.sub.4, is oxidized with peroxomonosulphuric acid or peroxodisulphuric acid, which are preferably employed in the form of the alkali metal or ammonium salts, and the product is then reduced.

REFERENCES:
patent: 1994622 (1935-03-01), Schmidt et al.
patent: 2454679 (1948-11-01), Smyth
patent: 2590825 (1952-03-01), Scalera et al.
patent: 3194820 (1965-07-01), Grelat
The Merck Index, 8 ed. 1968, Stecher et al., editor, pp. 212.
The Chemistry of Synthetic Dyes, vol. II, 1952, Venkatoraman, pp. 892-895.

Affiliated with

Also associated with

Rating

Process for the preparation of 4,4'-diamino-1,1'-dianthrimides 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 4,4'-diamino-1,1'-dianthrimides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of 4,4'-diamino-1,1'-dianthrimides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1496769