申请人:E. I. Du Pont de Nemours and Company
公开号:US03992450A1
公开(公告)日:1976-11-16
Compounds of the general formula: ##SPC1## Wherein m = 0 or 1; Ar is an arylene or lower alkyl substituted arylene radical; R.sub.1 and R.sub.2, which may be the same or different, are lower alkyl or hydroxyalkyl groups, or ##EQU1## R.sub.3 is H, lower alkyl, benzyl, R.sub.4, or ##EQU2## R.sub.4 is ##SPC2## Alkyl group, an aryl group, ##EQU3## wherein n=2-6; and R.sub.6 is a lower alkyl group or an aryl group. Where m = 1, the formula represents a colorless leuco compound; where m = 0, the formula represents the yellow dye derivative of the leuco. These compounds are particularly useful in photosensitive compositions.
通式化合物如下:##SPC1## 其中m = 0或1;Ar是芳烃或取代的较低烷基芳烃基团;R.sub.1和R.sub.2,可能相同也可能不同,是较低烷基或羟基烷基基团,或##EQU1## R.sub.3是H、较低烷基、苄基、R.sub.4,或##EQU2## R.sub.4是##SPC2## 烷基基团、芳基团、##EQU3## 其中n=2-6;R.sub.6是较低烷基或芳基。当m = 1时,该式代表无色亮化合物;当m = 0时,该式代表亮化合物的黄色染料衍生物。这些化合物在感光组合物中特别有用。