title: Synthesis and properties of 9,9-diarylfluorene-based triaryldiamines.
abstract: [reaction: see text] 9,9-Diaryl-2,7-dibromofluorene was synthesized by a triflic acid promoted Friedel-Crafts reaction. Introduction of diarylamino groups at its C2 and C7 positions by a Pd-catalyzed amination results in the formation of a novel class of triaryldiamines. The 9,9-diaryl substituents at the central linkage play a less important role in the photophyscial properties but affect the oxidation potential and improve the morphological stability of these new triarylamines.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei 106, Taiwan. kenwong@ccms.ntu.edu.tw
authors.forename: K T
authors.initials: KT
authors.lastname: Wong
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Wang
authors.forename: Y Y
authors.initials: YY
authors.lastname: Chien
authors.forename: C L
authors.initials: CL
authors.lastname: Wang