DOI: 10.1002/mrc.1992

Pyrazolo[1,5-a]pyrimidines. A combined multinuclear magnetic resonance (¹H, ¹³C, ¹⁵N, ¹⁹F) and DFT approach to their structural assignment.

Multinuclear magnetic resonance spectroscopy together with GIAO-DFT calculations allowed establishment of the structure of the products obtained by condensation of 3(5)-amino-4-phenyl-1H-pyrazole and β-dicarbonyl compounds bearing a trifluoromethyl group. They are 3-phenyl-5-(R)-7-trifluoromethylpyrazolo[1,5-a]pyrimidines.