Methanol → HCID 20213160, compound

Participants

Reaction Steps

15.3 g of 4,6-dichloro-5-methoxy-2-phenylpyrimidine and 30 ml of 25% boron trichloride solution in methylene chloride are heated at 40° C. in a bomb tube for 15 hours. The reaction mixture is subsequently added dropwise to a mixture of methanol and methylene chloride (1:1), and then diluted with ice-water. The organic phase is separated, and the aqueous phase is extracted with methylene chloride. The combined organic phases are concentrated by evaporation and chromatographed on silica gel to thus obtain 8.7 g of 4,6-dichloro-5-hydroxy-2-phenylpyrimidine, m.p. 138°-140° C. (compound No. 34).

Provenance & Evidence