反応式
[CH3:1][C:2]1[C:3](=[O:9])[NH:4][C:5](=[S:8])[NH:6][CH:7]=1.[OH-].[K+].[CH3:12]I>C(O)C>[CH3:1][C:2]1[C:3](=[O:9])[N:4]=[C:5]([S:8][CH3:12])[NH:6][CH:7]=1参加物
5
実験手順
5-methyl-2-thiouracil (2 g, 98%, 13.78 mmol, 1 eq) and KOH, 85%, (1.05 eq, 995 mg) were suspended in 25 ml of absolute ethanol and the mixture was stirred for 1 hour at room temperature. In the suspension was then added MeI (1.05 eq, 905 μl) dropwise and the suspension was heated at 65° C. (temperature on display of heating device) for 2 hours. Solvent was then evaporated. In the rest was added 100 ml of water and using ultrasound was suspended. The obtained precipitate was collected by filtration, it was dried and obtained was 5-methyl-2-methylsulfanyl-1H-pyrimidin-4-one (1.7 g, yield=71.9%, purity=93%) in form of a white powder. MS: [M+H]+=157.08 1H NMR (300 MHz; DMSO-d6) δ/ppm 1.90 (s, 3H), 2.50 (s, 3H), 7.78 (s, 1H)
後処理
- temperature(temperature on display of heating device) for 2 hours
- customSolvent was then evaporated
- additionIn the rest was added 100 ml of water
- filtrationThe obtained precipitate was collected by filtration, it
- customwas dried
- customobtained
出典と根拠
- ORDレコード
- ord-552263b096a04605a0fd7ee7332b43b7
- 出典データセット
- uspto-grants-2014_01
- 特許番号
- US08637536B2
関連ノート
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