Process for the preparation of triphendioxazine dyestuffs amidat

Details Process for the preparation of triphendioxazine dyestuffs amidat Process for the preparation of triphendioxazine dyestuffs amidat

1997-07-15

1999-08-31

Raymond, Richard L.

Bleaching and dyeing; fluid treatment and chemical modification

Reactive dye composition, process, or product

Alkylene sulfato, halotriazine, halodiazine,...

8566, 8680, 544 76, 544 77, C07D49804

Patent

active

059448547

ABSTRACT:
According to the invention, a process for the preparation of triphendioxazines systemetrically or asymmetrically amidated on both sides comprises reducing a triphendioxazine chromophore, which is optionally already amidated on one side, to give the leuco form end amidating and re-oxidizing the leuco form. Products amidated on both sides are obtained in this manner with a high yield and product quality. Novel triphendioxazine dyestuffs are furthermore prepared in this manner.

REFERENCES:
patent: 3883523 (1975-05-01), Parton
patent: 4933446 (1990-06-01), Sawamoto et al.
patent: 5272267 (1993-12-01), Miuyamoto et al.
patent: 5405947 (1995-04-01), Hoppe et al.
patent: 5438137 (1995-08-01), Miyamoto et al.
patent: 5456726 (1995-10-01), Kawabata et al.
patent: 5484458 (1996-01-01), Russ et al.
patent: 5486607 (1996-01-01), Miyamoto et al.
Hisao Nishi et al., "A New Synthesis of Triphenodithiazines and Triphenodithiazinequinoes", Bulletin of the Chemical Society of Japan, Bd. 56, Nr. 5, May 1983, Tokyo Japan, pp. 1482-1486 XPOO2026132.

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