Phosphorus, Sulfur and Silicon and the Related Elements p. 179 - 196 (2009)
Update date:2022-08-03
Topics:
Badawy, Doria S.
Kandeel
Awad, Noha M.
Abdel-Rahman, Abdel-Rahman H.
Treatment of the enaminone 2, prepared from 1-(1-hydroxy-2-naphthyl) ethanone 1 and N,N-dimethylformamide dimethylacetal with acetic acid, thionyl chloride, or bromine, gave the corresponding 4-oxo-4H-naphtho[1,2-b]pyran derivatives 3, 4, and 5. Refluxing
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