Bulletin of the Chemical Society of Japan p. 2187 - 2194 (1994)
Update date:2022-08-04
Topics:
Sone
Sato
Umetsu
Yoshino
Takahashi
Unsymmetrically substituted 2,4-diaryl- and 2,3-diarylthiophenes were synthesized from 2,5-dichlorothiophene via 4-aryl-2-chlorothiophenes in two and four steps including Ni-mediated cross-coupling, respectively. Aluminum chloride-catalyzed reaction of 3-aryl-2-chlorothiophenes with some aromatic ethers unexpectedly led to the formation of the corresponding 2,4-isomers.
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