Summary
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1.
6-Phenyl-2H-pyran-2-one is nitrated by nitric acid in the pyran ring with formation of 3-nitro-6-phenyl-2H-pyran-2-one.
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2.
In the action of sodium alkoxides on 6-phenyl-2H-pyran-2-one,the opening of the pyran ring occurs with formation of 4-benzoylcrotonic esters.
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3.
The action of alkaline agents on 6-phenyl-2H-pyran-2-one leads, as a result of the cleavage of the 4-benzoylcrotonic acid formed, to acetophenone, 4-phenylbenzophenone, and 5-(2-benzoylvinyl)-6-phenyl-2H-pyran-2-one.
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L. I. Zakharkin and L. P. Sorokina, Izv. AN SSSR, Otd. khim. n.,1958, 1445.
L. P. Sorokina and L. I. Zakharkin, Izv. AN SSSR, Ser. khim.,1964, 73.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 870–876, May, 1965 Original article submitted May 16, 1963
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Zakharkin, L.I., Sorokina, L.P. Some reactions of 6-phenyl-2H-pyran-2-one. Russ Chem Bull 14, 840–844 (1965). https://doi.org/10.1007/BF00845699
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DOI: https://doi.org/10.1007/BF00845699