Hydrochloric Acid → HCID 178518206, compound

Participants

Reaction Conditions

Reaction Steps

Benzylmercaptan (6 ml, 0.05 mole) was added to a stirred and heated (90°) suspension of 5-bromo-4,6-dihydroxypyrimidine (9.5 g, 0.05 mole) and potassium carbonate (7.5 g, 0.055 mole) in dimethylformamide (25 ml). The reaction mixture was stirred and heated at 95-105° C. under an atmosphere of dry nitrogen for 3.5 hours. The mixture was poured into ice cold water (400 ml) with vigorous stirring and then acidified to pH 1 with hydrochloric acid. After stirring for 0.5 hours the suspension was filtered and the solid which was collected was rinsed several times with n-hexane and diethyl ether. The remaining brown solid was air dried to give 4,6-dihydroxy-5-benzylthiopyrimidine (5.5 g 50%) PMR spectrum: (d6DMSO) 3.96 (S, 2h); 7.2 (bm, 5H); 8.11 (s, 1H); 12.2 (bs, 2H).

Provenance & Evidence