HCID 13061617, compound → HCID 13061618, compound

Participants

Reaction Steps

A 2.9 g portion of the 2,4-di-(n-hexadecyloxy)-5-fluoropyrimidine is dissolved in a mixture of 5 ml of 2N aqueous potassium hydroxide solution and 25 ml of ethanol, and the solution is refluxed for 4 hours. The ethanol is distilled off from the resulting reaction mixture, and 50 ml of ether is added to the residue to remove ether-soluble substances. Dilute hydrochloric acid is added to the remaining mass to adjust the pH to 4-5 and to separate out crystals, which are recrystallized from ethanol to give 1.3 g of white crystalline 2-n-hexadecyloxy-5-fluoropyrimidin-4-one in a yield of 73.0%, m.p. 97°-98° C.

Provenance & Evidence