| 摘要 |
1,177,437. Anthraquinone reactive dyestuffs. FARBENFABRIKEN BAYER A.G. 21 May, 1968 [2 June, 1967], No. 24188/68. Heading C4P. The invention comprises compounds of the formula where R 1 , R 2 and R 3 are hydrogen or alkyl, alkoxy or halogen substituents, n is 0-2, R is hydrogen or an alkyl substituent of 1-5 carbon atoms and R 4 is an amino or hydrazino group or a hydrocarbon radical which may be linked via O, N or S and which may be substituted. The compounds may be prepared by reacting together compounds of the formulµ where X denotes an anionically splittable radical, or from a compound of Formula I in which instead of R 4 there is an exchangeable substituent X by condensation with ammonia or a suitable amino, hydroxy or thio compound, or from a compound of Formula I in which instead of a fluorine atom there is another anionically splittable radical Y by treating to exchange Y for a fluorine atom. |
