Patent ID: 6866980

Claim:
A bis-o-aminophenol derivative, comprising: a bis-o-aminophenol having a formula selected from the group consisting of Formula IIa and IIb where: R 1 and R 2 are substituents independently selected from the group consisting of a hydrogen atom and a tert-butoxycarbonyl group having a Formula I where R 3 , R 4 , and R 5 are substituents selected from the group consisting of: —H; —F; —(CH 2 ) n —CH 3 ; —(CF 2 ) n —CF 3 , where n is an integer from 0 to 10, provided that at least one of the radicals R 3 , R 4 , and R 5 is other than hydrogen, and where at least one of the substituents R 1 and R 2 is a tert-butoxycarbonyl group of the Formula I; and Z is a substituent selected from the group consisting of a carbon-carbon single bond, a carbon-carbon bond shared by said two phenyl groups carrying said amino group and one of said OR 1 group and said OR 2 group, a divalent alkyl radical having from 1 to 20 carbon atoms, a divalent aryl radical having from 6 to 20 carbon atoms, and a divalent aralkyl radical having an alkyl group.