反応式
[CH3:1][N:2]1[C:7]([C:8]([F:11])([F:10])[F:9])=[CH:6][C:5](=[O:12])[N:4]([C:13]2[CH:14]=[CH:15][C:16]3[S:20][N:19]=[C:18]([CH:21]=[O:22])[C:17]=3[CH:23]=2)[C:3]1=[O:24].[SH:25][CH2:26][CH2:27][CH2:28]O.[Bi](Cl)(Cl)Cl.C(#N)C>C(OCC)C>[CH3:1][N:2]1[C:7]([C:8]([F:9])([F:10])[F:11])=[CH:6][C:5](=[O:12])[N:4]([C:13]2[CH:14]=[CH:15][C:16]3[S:20][N:19]=[C:18]([CH:21]4[S:25][CH2:26][CH2:27][CH2:28][O:22]4)[C:17]=3[CH:23]=2)[C:3]1=[O:24]参加物
実験手順
A mixture of 5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]-1,2-benzisothiazole-3-carboxaldehyde (2.86 g, 8.05 mmol), 3-mercapto-1-propanol (0.600 ml, 6.84 mmol), bismuth (III) chloride (0.090 g, 0.285 mol) and acetonitrile is stirred overnight at room temperature. Additional 3-mercapto-1-propanol (0.200 ml, 2.31 mmol) and bismuth (III) chloride are added and the resultant mixture is concentrated in vacuo. The residue is chromatographed with ethyl acetate-hexanes to afford a solid, which is taken up in diethyl ether, washed with water, once with brine and dried over anhydrous magnesium sulfate. Concentration in vacuo affords the title compound as a white solid (1.15 g, 33.2%, mp 125-130° C.) which is identified by NMR spectral analysis.
後処理
- concentrationthe resultant mixture is concentrated in vacuo
- customThe residue is chromatographed with ethyl acetate-hexanes
- customto afford a solid, which
- washwashed with water, once with brine
- dry with materialdried over anhydrous magnesium sulfate
- concentrationConcentration in vacuo
出典と根拠
- ORDレコード
- ord-eac1b6e5edea4614bc5fba3233bd5158
- 出典データセット
- uspto-grants-2004_03
- 特許番号
- US06706663B2
関連ノート
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