申请人:Zeneca Limited
公开号:US05362888A1
公开(公告)日:1994-11-08
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 Formula (3): ##STR3## wherein: R.sup.1 and R.sup.2 each independently is --H or alkyl; R.sup.3 is alkyl; R.sup.4 is --H or alkyl; R.sup.5 and R.sup.6 each independently is alkyl; or R.sup.5 and R.sup.6 together with the N atom to which they are attached form a heteroalicyclic ring; and Ring A is unsubstituted or is substituted by from one to three substituents provided that at least one of R.sup.1, R.sup.2 and R.sup.4 is --H. The polycyclic dyes of Formula (1) are useful for the coloration of synthetic textiles such as polyester to which they impart blue to navy shades.
一种制备公式(1)的多环染料的方法:##STR1## 通过反应公式(2)的化合物:##STR2## 与苯并呋喃酮的公式(3):##STR3## 其中:R.sup.1和R.sup.2各自独立地是-H或烷基;R.sup.3是烷基;R.sup.4是-H或烷基;R.sup.5和R.sup.6各自独立地是烷基;或R.sup.5和R.sup.6与它们连接的N原子一起形成一个杂环;环A未被取代或被取代为一到三个取代基,但至少有R.sup.1,R.sup.2和R.sup.4中的一个是-H。公式(1)的多环染料可用于合成纤维素材料的着色,如聚酯,它们赋予其蓝色到海军蓝色的色调。