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