Conclusions
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1.
The yield of 2-aryltetrafluorobenzoic acids, formed by the reaction of pentafluorobenzoic acid with Grignard reagents of the o- and p-HC6H4MgBr type, is determined by the position and character of the X substituent.
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2.
We obtained 3,4-tetrafluorobenzocoumarin from 2-(o-anisyl)tetrafluorobenzoic acid by refluxing with AlCl3 in chlorobenzene.
Literature cited
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T. N. Gerasimova, T. V. Fomenko, and E. P. Fokin, Zh. Org. Khim.,12, 856 (1976).
T. V. Fomenko, T. N. Gerasimova, and E. P. Fokin, Izv. Sibirsk. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk,1977, No. 2, Issue 1, 99.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1880–1883, August, 1977.
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Fomenko, T.V., Gerasimova, T.N. & Fokin, E.P. Reaction of pentafluorobenzoic acid with arylmagnesium bromides. Russ Chem Bull 26, 1742–1745 (1977). https://doi.org/10.1007/BF00925191
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DOI: https://doi.org/10.1007/BF00925191