| 摘要 |
<p>Water soluble triazole dyes are prepared diazotizing a 2-(4-aminophenyl)-2H-naphtho¢1,2-d!triazole sulfonic acid and coupling the resulting diazonium salt to a barbituric acid. The resultant triazole dyes are compounds having the structure: wherein M is H, Na, K, Li, N(R)3H and R is H, lower alkyl or lower hydroxy alkyl and R1 is oxygen, sulfur, imino, lower alkylimino, cyanimino and carbamoylimino. The triazole dyes are useful as fluorescent greenish-yellow paper dyes and, as such, exhibit excellent substantivity and tinctorial strength as well as very good properties from the standpoint of bleachability and fastness to light and bleeding.</p> |
