Basic oxazine dyestuffs

Details Basic oxazine dyestuffs Basic oxazine dyestuffs

1975-03-19

1977-02-22

Meyers, Albert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260244R, 260246R, C07D26500, C07D26512, C07D27300, C07D29500

Patent

active

040091627

ABSTRACT:
New valuable basic oxazine dyestuffs of the formula ##STR1## in which R is hydrogen or lower alkyl, R.sub.1 is hydrogen or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, R.sub.2 and R.sub.3 each is hydrogen or lower alkyl or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, or R.sub.1 and R.sub.2 form together with the nitrogen atom the pyrrolidino, piperazino, piperidino or morpholino ring, and the phenyl nucleus a is substituted by lower alkyl, lower alkoxy, acetyl, cyano, halogen, phenoxy or trifluoromethyl, and X.sup.(.sup.-) is an anion has been found which are well suitable for the dyeing or printing of tanned cellulose fibers, silk, leather, or acetate rayon, synthetic polyamide fibers or acid-modified polyester and polyamide fibers and fibers containing polyacrylonitrile or polyvinylidene cyanide. The dyeings and prints obtained are bright and color-intensive and have good fastnesses to light and to wet processing.

REFERENCES:
patent: 2376283 (1945-05-01), Short et al.
patent: 3629248 (1971-12-01), Shafer et al.
patent: 3681347 (1972-08-01), Herz et al.

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