Journal
ORGANIC LETTERS
Volume 20, Issue 23, Pages 7530-7534Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.8b03290
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Funding
- MEXT (Japan) [JP15K05415, JP15K05416]
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A series of 2,4,5,7,9,10-hexaethynylpyrenes was synthesized using 2,7,9,10-tetrabromopyrene-4,5-dione as the key intermediate. The effects of the position and number of the ethynyl groups on the physicochemical properties of the corresponding pyrenes were clarified by comparison with 4,5,9,10-tetraethynylpyrene and 2,7-diethynylpyrene derivatives. The prepared hexaethynylpyrenes that bear benzene moieties self-assemble via pi-pi stacking in solution and/or the condensed phase.
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