| abstract |
DYESTUFFS, CONTAINING NO ACID GROUPS, OF THE FORMULA: 1-(A-N=N-),2-(PHENYL-CH=CH-CO-NH-),4-(R1-N(-R2)-),5-X- BENZENE IN WHICH A REPRESENTS THE RESIDUE OF A DIAZOTISABLE AMINE, R1 AND R2 EACH REPRESENT AN ALKYL GROUP HAVING UP TO FOUR CARBON TOMS AND X REPRESENTS A HYDROGEN ATOM OR A METHYL, ETHYL, METHOXY OR ETHOXY GROUP, COUPLING COMPOUNDS OF THE FORMULA: 1-(PHENYL-CH=CH-CO-NH-),4-X,5-(R1-N(-R2)-)BENZENE IN WHICH R1, R2 AND X HAVE THE MEANINGS GIVE ABOVE. THE DYESTUFFS ARE OF PARTICULAR INTEREST FOR THE COLOURATION OF HYDROPHOBIC FIBERS AND PROCESSES FOR THE PREPARATION OF THE DYESTUFFS AND THE COUPLING COMPOUNDS ARE DISCLOSED. |