| 摘要 |
The invention relates to dyes of general formula (I), where X and Y = H, Br or Cl, but not simultaneously H, R = F, Cl, Br, COOR1 or CF3, R' = H or F, R1 = C1-C6 alkyl, one of the groups W1and W2 = hydroxy and the other nitro and Y is always ortho to the hydroxy group, wherein compounds in which R = Cl, bonded to the phenyl ring in the position ortho to the NH group and compounds in which W1 = nitro, W2 = hydroxy, Y = H, X = Cl and R = Br bonded to the phenyl ring in the position meta to the NH group are excluded, mixtures of the above with further dyestuffs and the production and use thereof. |
