Diglyme → 6-(2-Fluoro-4-nitrophenoxy)-N-(4-methoxybenzyl)pyrimidin-4-amine

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Reaction Conditions

Reaction Steps

A mixture of N-(4-methoxybenzyl)-6-chloropyrimidin-4-amine (2.3 g, 9.2 mmol), 2-fluoro-4-nitrophenol (1.45 g, 9.2 mmol), DIPEA (15 mL), and 2-methoxyethyl ether (75 mL) was heated at 160° C. in a sealed pressure bottle for 50 h. The mixture was cooled, poured onto crushed ice (200 g), treated with EtOAc (200 mL). After vigorously stirring for 10 min, the insoluble material was filtered off. The EtOAc phase was washed with saturated aq. Na2CO3 solution (100 mL), brine (3×100 mL), dried (MgSO4) and concentrated in vacuo. The gummy solid obtained was triturated with isopropyl ether to give the title compound (1.75 g, 76%) as a brown solid. 1H NMR (DMSO-d6) δ 8.32 (dd, 1H, J=10.2, 2.0 Hz), 8.15 (d, 2H, J=9.2 Hz), 8.05 (br s, 1H), 7.61 (dd, 1H, J=8.4, 8.4 Hz), 7.26 (d, 2H, J=8.5 Hz), 6.91 (d, 2H, J=8.5 Hz), 6.14 (br s, 1H), 4.48 (br s, 2H), 3.74 (s, 3H).

Provenance & Evidence