We have evaluated novel oxidative dye couplers based on 4,6-bis(aryloxy)-m-phenylenediamines. The aryloxy groups are displaced upon coupling and then participate in further color formation. A mixture of up to four different dyes can therefore be produced from a single coupler-primary intermediate interaction. © 1990.
Brown, K. C., Anderson, J. S., & Kijek, J. E. (1990). Novel oxidative dye couplers. Dyes and Pigments, 13(1), 21–27. https://doi.org/10.1016/0143-7208(90)80010-M