title: Facile synthesis of complicated 9,9-diarylfluorenes based on BF3.Et2O-mediated Friedel-Crafts reaction.
abstract: [reaction: see text] BF3.OEt2-mediated Friedel-Crafts reaction of 9-phenyl-fluoren-9-ol with electron-rich aromatic substrates to prepare a new family of complicated 9,9-diarylfluorenes is described. The 9,9-diarylfluorenes tethered with various functional substituents, e.g., bulky spiro units, hole-transporting moieties, and fluorescent dyes, will be promising building blocks for the construction of optoelectronic materials.
authors.affiliation: Institute of Advanced Materials (IAM), Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China.
authors.forename: Ling-Hai
authors.initials: LH
authors.lastname: Xie
authors.forename: Xiao-Ya
authors.initials: XY
authors.lastname: Hou
authors.forename: Yu-Ran
authors.initials: YR
authors.lastname: Hua
authors.forename: Chao
authors.initials: C
authors.lastname: Tang
authors.forename: Feng
authors.initials: F
authors.lastname: Liu
authors.forename: Qu-Li
authors.initials: QL
authors.lastname: Fan
authors.forename: Wei
authors.initials: W
authors.lastname: Huang