反应详情

A mixture 4-chloro-2,6-di(2-pyridinyl)pyrimidine (25 mg, 0.093 mmol), m-anisidine (16 μl, 0.140 mmol) and 2N HCl (75 μl) in water:ethanol (2:1, 10 ml) was refluxed for 24 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 aqueous ethanol to give a yellow solid (20 mg, 60%). 1H NMR (CDCl3): 8.87–8.85 (m, 1H), 8.69–8.61 (m, 3H), 7.95 (s, 1H), 7.92–7.84 (m, 2H), 7.44–7.36 (m, 2H), 7.33 (d, J=8.1 Hz, 1H), 7.30 (s, 1H), 7.05 (t, J=2.1 Hz, 1H), 6.98 (dd, J=2.1, 8.1 Hz, 1H), 6.79–6.75 (m, 1H), 3.86 (s, 3H).

1. filtrationThe resulting precipitate was filtered
2. washwashed with water and aqueous ethanol