Process for the preparation of 4-amino-1,8-naphthalimides

Details Process for the preparation of 4-amino-1,8-naphthalimides Process for the preparation of 4-amino-1,8-naphthalimides

1978-01-09

1979-10-23

Berch, Mark L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544126, 544331, 544332, 544333, 544361, C07D22114

Patent

active

041722027

ABSTRACT:
N-substituted amides or optionally N-substituted hydrazides of 4-amino-naphthalic acids which may be substituted in 3-position by a sulfo group are obtained by reacting 4-halo-1,8-naphthalic anhydride with a primary amine or an optionally N-substituted hydrazine having a pK.sub.a -value of at least 8, exchanging in the so-obtained 4-halo-naphthalimide the halogen for the amino group by reacting it with ammonia and, optionally, subsequent sulfonation. The products are dyeing matters useful for the coloration of synthetic fibers, plastics, oils, waxes, resins, paper, printing pastes, lacquers or natural polyamides, especially for daylight-fluorescence pigments.

REFERENCES:
patent: 1796011 (1931-03-01), Eckert
patent: 2006017 (1935-06-01), Eckert
patent: 2385106 (1945-09-01), Scalera
Okada et al., I, Chem. Abs., 78, 148978f (1973).
Okada et al., II, Chem. Abs., 77, 76689s (1972).
Okazaki et al., Chem. Abs., 52, 337a (1956).

Affiliated with

Also associated with

Rating

Process for the preparation of 4-amino-1,8-naphthalimides 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-amino-1,8-naphthalimides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of 4-amino-1,8-naphthalimides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-410523