反应详情

4,6-dichloro-2-(methylthio)pyrimidine (Compound IV-5) (19.5 g, 0.100 mol) was dissolved in tetrahydrofuran (200 ml) just after distilled, then methyl alcohol (3.2 g, 0.100×1.0 mol) was added thereto. While cooling with ice, 60% sodium hydride (4.4 g, 0.100×1.1 mol) was added thereto while stirring. After stirred for 3 hours, the reaction solution was poured into water and extracted with toluene. The organic phase was washed with saturated aqueous sodium chloride, dried over anhydrous sodium sulfate and filtered, and thereafter, the solvent was distilled off to obtain the compound (IV-29).

1. distillationafter distilled
2. additionwas added
3. stirringAfter stirred for 3 hours
4. extractionextracted with toluene
5. washThe organic phase was washed with saturated aqueous sodium chloride
6. dry with materialdried over anhydrous sodium sulfate
7. filtrationfiltered
8. distillationthe solvent was distilled off
9. customto obtain the compound (IV-29)