Abstract
Reactions of polyfluorinated chalcones with guanidine in the presence of bases are accompanied by elimination of the polyfluorophenyl group. 3-(Pentafluorophenyl)-1-phenylprop-2-en-1-one and its derivatives reacted with guanidine under basic conditions to give 4-phenylpyrimidin-2-amine, polyfluorobenzenes, and Michael adducts, 3-(2-amino-4-phenylpyrimidin-5-yl)-3-(4-R-2,3,5,6-tetrafluorophenyl)-1-phenylpropan-1-ones. 1-(Pentafluorophenyl)-3-phenylprop-2-en-1-one and 1,3-bis(pentafluorophenyl)prop-2-en-1-one were converted into cinnamic acid derivatives whose reaction with guanidine afforded 2-amino-6-aryl-5,6-dihydropyrimidin-4(1H)-ones.
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Original Russian Text © E.A. Borodina, N.A. Orlova, Yu.V. Gatilov, O.I. Sal’nikova, 2015, published in Zhurnal Organicheskoi Khimii, 2015, Vol. 51, No. 12, pp. 1778–1785.
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Borodina, E.A., Orlova, N.A., Gatilov, Y.V. et al. Reaction of polyfluorinated chalcones with guanidine. Russ J Org Chem 51, 1745–1752 (2015). https://doi.org/10.1134/S1070428015120143
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DOI: https://doi.org/10.1134/S1070428015120143