Abstract
2,6-Diphenyl-4-pyrimidylmalonic esters (I, II) 2,6-diphenyl-4-cyanoacetic ester (III), and 2,6-diphenyl-4-pyrimidylmalononitrile (IV) were obtained for the study of pyrimidine-pyrimidylidene tautomerism by condensation of 4-chloro-2,6-diphenylpyrimidine with the appropriate malonic acid derivatives. The structures of the tautomeric forms and the positions of the equilibria were studied by PMR, IR, and UV spectroscopic methods.
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Communication LVI from the series “Pyrimidines.”
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 395–397, March, 1977.
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Lapachev, V.V., Zagulyaeva, O.A. & Mamaev, V.P. Pyrimidine-pyrimidylidene tautomerism of some 4-pyrimidylmalonic acid derivatives. Chem Heterocycl Compd 13, 319–322 (1977). https://doi.org/10.1007/BF00470319
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DOI: https://doi.org/10.1007/BF00470319