申请人:Zeneca Limited
公开号:US05304659A1
公开(公告)日:1994-04-19
A process for the preparation of a polycyclic dye of Formula (1): ##STR1## by reacting a compound of Formula (2): ##STR2## with a benzofuranone of the Formula (3): ##STR3## wherein: Ring A is unsubstituted or is substituted by from one to three groups; Ring B is unsubstituted, apart from the nitro group, or is substituted by one or two further groups; R is H, optionally substituted alkyl or optionally substituted aryl; and Z is an oxyammonium group, and certain novel compounds of Formula (2) are disclosed. The process provides a convenient route to polycyclic dyes which are useful for the coloration of synthetic textile materials particularly polyesters.
一种制备公式(1)的多环染料的方法:##STR1## 通过将公式(2)的化合物:##STR2## 与公式(3)的苯并呋喃酮反应:##STR3## 其中:环A未取代或被1-3个基取代;环B除了硝基外未取代或被1-2个基取代;R为H,可选取代的烷基或可选取代的芳基;Z为氧化铵基团,并揭示了某些新的公式(2)的化合物。该方法提供了一种方便的途径来制备用于合成纺织材料特别是聚酯的染色的多环染料。