Heterocycles p. 2261 - 2272 (1997)
Update date:2022-08-03
Topics:
Ishikawa, Tsutomu
Mizutani, Akiko
Miwa, Chizue
Oku, Yumie
Komano, Naoko
Takami, Atsuya
Watanabe, Toshiko
The expected 7-alkoxy-2-methylbenzo[b]furans were effectively given in the CsF-mediated Claisen rearrangement of phenyl propargyl ethers with an o-alkoxy substituent on the benzene ring. On the other hand CsF did not affect the production of the corresponding benzo[b]furans when ethers, carrying a propargyl residue modified by either 1,1-dimethyl or 3-ethoxycarbonyl functions, were used as substrates in the rearrangement.
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(2009)