Chemistry Letters p. 715 - 716 (1995)
Update date:2022-08-17
Topics:
Kusama, Hiroyuki
Uchiyama, Katsuya
Yamashita, Yuko
Narasaka, Koichi
Intramolecular cyclization reaction on the nitrogen atom of oximes of p-hydroxybenzylacetone derivatives proceeds by the treatment with tetrabutylammonium perrhenate and trifluoromethanesulfonic acid in refluxing 1,2-dichloroethane to afford azaspirodienones in good yield.The azaspirodienones are transformed into quinolines via dienone-phenol rearrangement.
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