Sodium hydride → 4-(2-Methyloxiran-2-yl)pyrimidine

Participants

Reaction Steps

Trimethylsulfonium iodide (3.34 g, 16.3 mmol) was dissolved in DMF (20 mL) and stirred at RT for 5 min. Sodium hydride (600 mg, 25 mmol) was added portionwise at the same temperature and stirred for 15 min. 4-Acetyl pyrimidine (1 g, 8.1 mmol) in 0.5 mL DMSO was added dropwise and the reaction mixture stirred for 1 h. After completion of reaction, the mixture was poured into ice-cold water and extracted with Ether (3×). The combined organic layer was washed with water several times followed by brine, and dried over sodium sulfate, then evaporated to provide 600 mg of 4-(2-Methyl-oxiranyl)-pyrimidine. 1H NMR (CDCl3, freebase) δ (ppm): 9.15 (s, 1H), 8.7 (d, 1H), 7.35 (d, 1H), 2.95 (d, 1H), 2.88 (d, 1H), 1.8 (s, 3H).

Provenance & Evidence