Abstract A series of naphthalimide-based alkali-clearable azo disperse dyes containing a fluorosulfonyl group was synthesized. 4-Fluorosulfonylaniline, 4-fluorosulfonyl-2-nitroaniline and 6-chloro-4-fluorosulfonyl-2-nitroaniline as the diazo components were prepared from N- acetylsulfanilyl chloride and were subsequently coupled with 4-hydroxy-N-3-methoxypropyl- 1, 8-naphthalimide. The synthesized dyes and their intermediates were characterized by ...
![6-Hydroxy-2-(3-methoxypropyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione Structure](https://image.chemsrc.com/caspic/355/26411-22-3.png)
![6-hydroxy-2-(3-methoxypropyl)-5-[(4-nitrophenyl)azo]-1H-benz[de]isoquinoline-1,3(2H)-dione Structure](https://image.chemsrc.com/caspic/139/42358-42-9.png)