Y. Chao
1992
Citations
0
Influential Citations
3
Citations
Journal
Dyes and Pigments
Abstract
Abstract Condensation of 4,5-dinitrochrysazin ( DNCZ ) and 5,8-dichloroquinizarin ( DCQZ ) with arylamines in the presence of boric acid (with or without zinc powder) gives 1,4,5,8-tetrakis(arylamino)anthraquinones. The dyes absorb in the near infrared at about 750–770 nm and colour polybutylene terephthalate film in green hues of very good fastness to light and sublimation.