Triethylamine → HCID 57613446, compound

Participants

Reaction Conditions

Reaction Steps

POCl3 (1.51 mL, 16.2 mmol, 3.0 eq.) is added slowly to a suspension of 6-methylsulfanyl-[4,5′]bipyrimidinyl-4′-ol 6 (1.20 g, 5.44 mmol) and triethyl amine (0.76 mL, 5.44 mmol, 1.0 eq.) in acetonitrile (30 ml). After heating at 85° C. for 2 hours, the reaction mixture is cooled to room temperature, poured into ice-water, neutralized by saturated NaHCO3 solution, and then extracted with ethyl acetate. The organic layer is washed with brine and dried over Na2SO4, filtered and concentrated. The crude product is purified by silica gel flash chromatography eluting with ethyl acetate in hexanes from 0% to 40% to give 4′-chloro-6-methylsulfanyl-[4,5′]bipyrimidinyl as a white solid. 1H NMR 400 MHz (DMSO-d6) δ 9.19 (s, 1H), 9.12 (d, 1H, J=1.2 Hz), 9.07 (s, 1H), 7.91 (d, 1H, J=1.6 Hz), 2.62 (s, 3H).

Provenance & Evidence