| 摘要 |
<p>New water-soluble fibre-reactive green phthalocyanineazo dyes of the formula I are obtained by diazotising an amine of the corresponding phthalocyanine series of the formula <IMAGE> where the amino group is attached to an aromatic carbon atom of the radical ar, and coupling in an aqueous medium at a pH of 3-8 with a succinic acid derivative of the formula <IMAGE> cyclising the resulting hydrazone by the action of alkalis to form a parazolone and coupling the latter with the diazonium compound of an amine of the formula <IMAGE> or with the diazonium compound of an amine of the formula H2N-B-E. The symbols A, B, Pc, ar, R1 to R4 , R7, k, l and m are each defined in Claim 1, the sum k + l + m being 3 or 4. When R7 in the formula I is hydrogen, E is nitro which is converted into amino or is <IMAGE>acyl), in which case the coupling dye is hydrolysed. In either case the dye obtained is reacted with a compound of the formula X-A, where X is a group that is detachable by nucleophilic attack from an amino group. The dyes of the formula I are highly suitable for dyeing and printing cellulose and natural and synthetic polyamide materials, show a high yield of fixation and produce yellowish to bluish green dyeings and prints of high brilliance and colour strength combined with very good fastness properties. <IMAGE></p> |
