A general strategy for the facile synthesis of 2,7-dibromo-9-heterofluorenes.
[reaction: see text] A facile, highly efficient, and economical procedure for the preparation of 6,6'-diiodo-4,4'-dibromo-3,3'-dimethoxylbiphenyl has been found. From this compound, a general synthetic strategy for the preparation of 2,7-dibromo-9-heterofluorenes has been developed. Five 2,7-dibromo-9-heterofluorenes have been easily synthesized for the first time according to the procedure presented, opening the door to new classes of inorganic and organometallic conjugated polymeric materials of polyheterofluorenes.
Chen
Run-Feng
RF
Institute of Advanced Materials (IAM), Fudan University, Shanghai, PR China.
Fan
Qu-Li
QL
Zheng
Chao
C
Huang
Wei
W