| 摘要 |
Disclosed are compounds of the formula, <IMAGE> or WHEREIN D is, <IMAGE> X is -COOM or -SO3M, R1 and R2, independently, are hydrogen, halogen, C1-3alkyl or C1-3alkoxy, M IS 1, 2 OR 3, AND, WHEN 3, THE TWO SULPHO GROUPS ARE OTHER THAN ON ADJACENT CARBON ATOMS, N IS 1 OR 2, WITH THE PROVISO THAT THE SUM OF N + M IS 3 OR 4, R3 is hydrogen, C1-3alkyl or C1-3alkoxy, R4 is hydrogen or C1-3alkyl, R3 and R4, when both other than hydrogen, being in para position relative to each other, R is hydrogen or, <IMAGE> it being hydrogen only when D is, <IMAGE> in which the -COOM group is m- or p- to the azo linkage, R5 is -CHR6-CHR6-O-CHR7CH2O-pH, either both R6's are hydrogen, or one of the R6's is hydrogen, the other methyl or ethyl, R7 is hydrogen, methyl or ethyl, R8 is hydrogen, C1-6alkyl or -CHR6-CHR6-O-CHR7CH2O-qH, Y is -NR9R10 or -N(R11)-CHR6</=CHR6-O-CHR7CH2O-rH, R9 and R10, independently, are hydrogen or C1-6alkyl, preferably both not being simultaneously tertiary alkyl, R11 is hydrogen, C1-6alkyl or -CHR6-CHR6O-CHR7CH2-tH, p, q, r and t, independently, are 0, 1, 2 or 3, and M is hydrogen or a non-chromophoric cation, their production and use in the dyeing of paper and leather, particularly the Former, optionally in the form of concentrated liquid or powder or granulate dyeing preparations. The compounds have good solubility in cold water, substantivity and pH stability and produce dyeings having notable fastness to light and resistance to bleeding. |
