Chemistry of Heterocyclic Compounds p. 266 - 268 (1992)
Update date:2022-09-26
Topics:
Blinokhvatov, A. F.
Markovtseva, O. V.
Nikolaeva, M. N.
Substituted 4H-pyrans were obtained in high preparative yields by the reaction of 1,5-diketones with acetic anhydride and boron trifluoride etherate in diethyl ether.It is assumed that the heterocyclization of 1,5-diketones includes a step involving the f
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