| 摘要 |
<p>Anthraquinone dyestuffs of formula: in which X is hydroxy or amino, R is hydroxy, alkoxy, mercapto- or alkyl mercapto- groups, Z is a phenylene or naphthalene radical, which may be further substituted, and the rings A and B may be substituted, may be prepared by reacting an anthraquinone, in the presence of an acid catalyst, with a compound of formula HZR, (Z and R as defined above). The dyestuffs e.g. 1-amino-2-(4'-hydroxybenzyl)-anthraquinone and 1-hydroxy-2-(4'-hydroxybenzyl) anthraquinone, are useful for colouring synthetic textiles e.g. polyester fibres.</p> |
