Abstract New valuable basic oxazine dyestuffs of the formula ##STR1## in which R is hydrogen or lower alkyl, R 1 is hydrogen or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, R 2 and R 3 each is hydrogen or lower alkyl or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, or R 1 and R 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.( - ) 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.
Inventors
👤 Eberhard Mundlos
👤 Reinhard Mohr
👤 Luis Herz
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-07 00:42
CPC Classifications
C; C09; C09B; C09B19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A basic oxazine dyestuff of the formula I ##STR26## in which R is hydrogen or lower alkyl, R 1 is hydrogen or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, R 2 and R 3 each is hydrogen or lower alkyl or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, or R 1 and R 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.( - ) is an anion.
Claim 2
Dependent Claim
98 words
A basic oxazine dyestuff of the formula I ##STR26## in which R is hydrogen or lower alkyl, R 1 is hydrogen or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, R 2 and R 3 each is hydrogen or lower alkyl or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, or R 1 and R 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.( - ) is an anion.