Hydrochloric Acid → 4-(2-Methyl-5-nitroanilino)-2-(3-pyridinyl)-6-(trifluoromethyl)pyrimidine

Participants

Reaction Steps

A mixture of 4-chloro-2-(3-pyridinyl)-6-(trifluoromethyl)pyrimidine (500 mg, 1.93 mmol), 2-methyl,5-nitroaniline (441 mg, 2.90 mmol), and 2N HCl (1.5 ml) in water:ethanol (1:1, 100 ml) was refluxed for 48 h. The mixture was cooled to room temperature and basified with aqueous 2N NaOH to pH 10–12. The resulting precipitate was filtered, washed with water and water:ethanol (2:1). The product was dried under vacuo and then washed with chloroform to give a yellow solid (136 mg, 19%). 1H NMR (DMSO-d6): 9.84 (s, 1H), 9.41 (s, 1H), 8.99 (s, 1H), 8.73 (d, J=4.2 Hz, 1H), 8.57 (d, J=7.8 Hz, 1H), 8.02 (dd, J=1.8, 7.8, 1H), 7.61 (d, J=8.1 Hz, 1H), 7.58–7.54 (m, 1H), 7.39 (s, 1H), 2.45 (s, 3H).

Provenance & Evidence