反应详情

温度

100 °C

A mixture of 3,4-dichloroaniline (1.328 g, 8.20 mmol) and 4-chloro-6-(methoxymethyl)pyrimidine (0.65 g, 4.10 mmol) in dioxane (20.5 ml) was heated at 100° C. for 54 h, cooled to room temperature and concentrated onto Na2SO4. The residue was purified on silica gel using 50-100% ethyl acetate in hexanes, then 10-15% methanol in ethyl acetate. The desired fractions were concentrated to give a dark brown solid which was triturated with DCM to yield N-(3,4-dichlorophenyl)-6-(methoxymethyl)pyrimidin-4-amine as a brown solid (0.66 g, 57%). 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 8.67 (1H, d, J=1.00 Hz), 7.69 (1H, d, J=2.51 Hz), 7.44 (1H, d, J=8.53 Hz), 7.29 (1H, dd, J=8.53, 2.51 Hz), 6.95 (1H, br. s.), 6.81 (1H, d, J=1.00 Hz), 4.45 (1H, d, J=0.50 Hz), 3.50 (2H, s). LCMS: R.T.=0.77; [M+H]+=283.98.

1. temperaturecooled to room temperature
2. concentrationconcentrated onto Na2SO4
3. customThe residue was purified on silica gel using 50-100% ethyl acetate in hexanes
4. concentrationThe desired fractions were concentrated
5. customto give a dark brown solid which
6. customwas triturated with DCM