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Potassium Carbonate → 1-(3-bromophenyl)-2-[1-(2,2,2-trifluoroethyl)-1H-pyrrol-3-yl]ethane-1,2-dione

HRID 2220440
ノート
印刷プレビュー

反応式

HRID 2220440 の反応式
[Br:1][C:2]1[CH:3]=[C:4]([C:8](=[O:16])[C:9]([C:11]2[CH:15]=[CH:14][NH:13][CH:12]=2)=[O:10])[CH:5]=[CH:6][CH:7]=1.CC1C=CC(S(O[CH2:28][C:29]([F:32])([F:31])[F:30])(=O)=O)=CC=1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.[N+](CC)(CC)(CC)CC.[Cl-].O.CCOC(C)=O>[Br:1][C:2]1[CH:3]=[C:4]([C:8](=[O:16])[C:9]([C:11]2[CH:15]=[CH:14][N:13]([CH2:28][C:29]([F:32])([F:31])[F:30])[CH:12]=2)=[O:10])[CH:5]=[CH:6][CH:7]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 3

HCID 11430Potassium CarbonateHCID 67942Ethanol, 2,2,2-trifluoro-, 1-(4-methylbenzenesulfonate)HCID 597726681-(3-bromophenyl)-2-(1H-pyrrol-3-yl)ethane-1,2-dione

生成物 1

HCID 597726671-(3-bromophenyl)-2-[1-(2,2,2-trifluoroethyl)-1H-pyrrol-3-yl]ethane-1,2-dione収率 159.9%

試薬・触媒・溶媒 4

HCID 5946Tetraethylammonium Chloride
触媒
HCID 962Water溶媒
HCID 6228Dimethylformamide溶媒
HCID 8857Ethyl Acetate溶媒

反応条件

温度
80 °C

実験手順

To a solution of 1-(3-bromophenyl)-2-(1H-pyrrol-3-yl)ethane-1,2-dione (93 mg, 0.33 mmol) in DMF (5.0 mL) was added 2,2,2-trifluoroethyl 4-methylbenzenesulfonate (170 mg, 0.66 mmol), K2CO3 (100 mg, 0.73 mmol) and Et4NCl (5.5 mg, 0.033 mmol) at room temperature. After heating at 80° C. for 3 days, the reaction mixture is cooled, diluted with H2O, EtOAc. The two layers are separated and the aqueous layer is extracted with EtOAc. The combined organic extracts are washed with 1N HCl aqueous H2O, brine, dried (MgSO4) and concentrated. The crude material is purified by chromatography (silica gel, EtOAc/hexane: 20/80) to give the title compound (190 mg, 65%) as a solid. mp: 105-106° C. MS (+) ES: 418 (M+CH3COO)−.

後処理

  1. temperaturethe reaction mixture is cooled
  2. customThe two layers are separated
  3. extractionthe aqueous layer is extracted with EtOAc
  4. washThe combined organic extracts are washed with 1N HCl aqueous H2O, brine
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated
  7. customThe crude material is purified by chromatography (silica gel, EtOAc/hexane: 20/80)

出典と根拠

ORDレコード
ord-8785eccea5fc4714a37bffcbe5038283
出典データセット
uspto-grants-2008_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07417047B2

反応ノート

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