Journal of Heterocyclic Chemistry p. 649 - 653 (1998)
Update date:2022-08-17
Topics:
Horaguchi, Takaaki
Kubo, Takuji
Tanemura, Kiyoshi
Suzuki, Tsuneo
Cyclohepta[cd]benzothiophene 3, a new heterocyle, was synthesized starting from benzothiophene via eight steps in 14% total yield. Chemical reactions of 3 were examined on formylation, acetylation, bromination, catalytic hydrogenation and Diels-Alder reactions. The results show that the benzothiophene moiety of 3 has aromatic character and the carbon-carbon double bonds in a seven-membered ring posseses alkene-like character.
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