
Tetrahedron Letters p. 5393 - 5396 (1998)
Update date:2022-08-02
Topics:
Iyoda, Masahiko
Kabir, S. M. Humayun
Vorasingha, Anusorn
Kuwatani, Yoshiyuki
Yoshida, Masato
Biphenylene and its derivatives were synthesized using the intramolecular coupling of benzoannelated zincacyclopentadiene intermediates prepared from 2,2'-dilithiobiaryls with ZnCl2. The reaction proceeded smoothly and selectively to give the desired biphenylenes in moderate to good yields.
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