Water → 5-Amino-4-(2-chlorofuran-3-yl)-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole
反応式
[NH2:1][C:2]1[N:6]([C:7]2[C:12]([Cl:13])=[CH:11][C:10]([C:14]([F:17])([F:16])[F:15])=[CH:9][C:8]=2[Cl:18])[N:5]=[C:4]([C:19]#[N:20])[C:3]=1[C:21]1[CH:25]=[CH:24][O:23][CH:22]=1.[Cl:26]N1C(=O)CCC1=O.CCOCC.O>C(#N)C>[NH2:1][C:2]1[N:6]([C:7]2[C:8]([Cl:18])=[CH:9][C:10]([C:14]([F:17])([F:15])[F:16])=[CH:11][C:12]=2[Cl:13])[N:5]=[C:4]([C:19]#[N:20])[C:3]=1[C:21]1[CH:25]=[CH:24][O:23][C:22]=1[Cl:26]参加物
6
実験手順
To a solution of 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-(furan-3-yl)pyrazole (0.095 g) in acetonitrile (6 ml) was added N-chlorosuccinimide (0.0345 g). The mixture was left at room temperature for 1.5 hours and then poured into ether (50 ml) and water (50 ml). The layers were separated and the aqueous phase extracted with a second portion of ether (50 ml). The combined organic layers were washed with water (25 ml), then dried (Na2SO4) and evaporated. The residue was purified by column chromatography on silica gel (10 g) eluted with dichloromethane. Combination and evaporation of suitable fractions gave the title compound as a white solid, m.p. 153° C.
後処理
- customThe layers were separated
- extractionthe aqueous phase extracted with a second portion of ether (50 ml)
- washThe combined organic layers were washed with water (25 ml)
- dry with materialdried (Na2SO4)
- customevaporated
- customThe residue was purified by column chromatography on silica gel (10 g)
- washeluted with dichloromethane
- customCombination and evaporation of suitable fractions
出典と根拠
- ORDレコード
- ord-a701dc8574d34da395d3a30289c26a0b
- 出典データセット
- uspto-grants-2000_05
- 特許番号
- US06069157
反応ノート
読み込み中…