| 摘要 |
<p>A compound of formula (1) and salts thereof, wherein R?1 and R2¿ are each independently optionally substituted alkyl; R3 is H or optionally substituted alkyl; X is a labile atom or group; Y is a labile atom or group or a group of formula (a) or -OR5; R4 is H or alkyl; R5 is H or optionally substituted alkyl or aryl; and m and n each independently have a value of 0 or 1. The compounds are useful for the coloration of textile materials.</p> |
