Patent ID: 7901867
Filing Date: 2011-03-08
Classification: B33Y,C07C,C07D,G03F,Y10S

Abstract:
1. A compound of the formula I, II, III or IV wherein R is hydrogen, C R R Ar or are unsubstituted naphthyl, anthryl, phenanthryl or biphenylyl; or are naphthyl, anthryl, phenanthryl or biphenylyl substituted by one or more C or are -Ar Ar or is phenyl, naphthyl, anthryl, phenanthryl or biphenylyl substituted by one or more C Ar A is a direct bond, S, O or C X is CO, C(O)O, OC(O), O, S or NR L is C R Z is S, CO or NR Z R R Y is an anion.