| 摘要 |
1,053,300. Anthraquinone basic dyes. L'OREAL. Oct. 29, 1963 [Oct. 29, 1962: Oct. 24, 1963], No. 42691/63. Heading C4P. [Also in Division D1] The invention comprises dyes having the general formula. in which one X is -NH-Z, the other two are hydrogen in which Z is a group -ArNRR 1 in which Ar is an arylene radical, R and R 1 are alkyl (C 1 -C 4 ) groups or form together with the nitrogen atom a piperidine or morpholine ring or alternatively Z may be the group -(CH 2 ) n NRR 1 in which R and R 1 form part of the heterocyclic rings as above, n has the values 2-6. The invention also comprises the quaternary ammonium salts of the above, especially the methyl sulphate and benzyl chloride derivatives. The dyes are obtained by the reaction of a diamine of formula NH 2 -(CH 2 ) n -NRR 1 or NH 2 -Ar-NRR 1 with quinizarin, leuco quinizarin (followed by oxidation) or 1,5- or 1,8-dichloroanthraquinone followed if required by quaternization in the presence or absence of an organic solvent. Many examples of these dyes are given. |
