Oligomeric ligands incorporating multiple 5, 5'-diethynyl-2, 2'-bipyridine moieties bridged and end-capped by 3, 4-dibutylthiophene units
S Goeb, A De Nicola, R Ziessel
Index: Goeb, Sebastien; De Nicola, Antoinette; Ziessel, Raymond Journal of Organic Chemistry, 2005 , vol. 70, # 5 p. 1518 - 1529
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Citation Number: 30
Abstract
In this work, we detail the synthesis and photophysical properties of a series of soluble polybipyridine ligands comprising one to five bipyridine units sandwiched between rigid carbon-carbon triple bonds substituted by 3, 4-dibutylthiophene repeating units. The dual Sonogashira coupling reaction of 5, 5'-dibromo-2, 2'-bipyridine with TMS-and (CH3) 2C (OH)- protected acetylene allows the synthesis of a dissymmetrically functionalized building ...
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