134640-48-5Relevant academic research and scientific papers
Synthesis of 3,4'-Diaryl- and 4,4'-Diaryl-2,2'-bithienyls from 2,5-Dichlorothiophene
Sone, Tyo,Umetsu, Yasuhiro,Sato, Kazuaki
, p. 864 - 868 (2007/10/02)
3,4'-Diaryl- and 4,4'-diaryl-2,2'-bithienyls, new classes of mixed thiophene-arene oligomers, were synthesized from 2,5-dichlorothiophene via 4-aryl-2-chlorothiophene in three and two steps, respectively.Namely, a Friedel-Crafts type self-condensation of 4-aryl-2-chlorothiophene, followed by catalytic dechlorination, yielded unsymmetrical bithienyls.Homocoupling of 4-aryl-2-chlorothiophene using a nickel-phosphine catalyst gave symmetrical bithienyls.
