发明授权
US4775760A Dibenzo[f,ij]isoquinoline-2,7-dione derivatives 失效
二苯并[f,ij]异喹啉-2,7-二酮衍生物

Dibenzo[f,ij]isoquinoline-2,7-dione derivatives
摘要:
Novel substituted isoquinoline compounds of the formula ##STR1## wherein R is lower alkyl,R.sub.1 is lower alkylene, 1-3 lower alkyleneoxy groups or lower alkylenethio, andX is one or more substitutents selected from the group consisting of hydroxyl, carbalkoxy, carboxy and acyloxy.These novel substituted isoquinolines can be used as dyes, toners or color bodies, and in particular as toners for polyesters.
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