1,2-Dibromoethane → HCID 69552004、化合物

HRID 1833174ノート

反応式

HRID 1833174 の反応式
[CH2:1]([O:3][C:4]([C:6]1[C:15]2[C:10](=[CH:11][C:12]([O:17][CH3:18])=[C:13]([OH:16])[CH:14]=2)[C:9]([C:19](=[O:30])[C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([O:26][CH:27]([CH3:29])[CH3:28])[CH:21]=2)=[N:8][CH:7]=1)=[O:5])[CH3:2].C(=O)([O-])[O-].[K+].[K+].[Br:37][CH2:38][CH2:39]Br.C(OCC)(=O)C.CCCCCC>CN(C)C=O>[CH2:1]([O:3][C:4]([C:6]1[C:15]2[C:10](=[CH:11][C:12]([O:17][CH3:18])=[C:13]([O:16][CH2:39][CH2:38][Br:37])[CH:14]=2)[C:9]([C:19](=[O:30])[C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([O:26][CH:27]([CH3:29])[CH3:28])[CH:21]=2)=[N:8][CH:7]=1)=[O:5])[CH3:2]

参加物

6

反応物 4

HCID 78391,2-DibromoethaneHCID 11430Potassium CarbonateHCID 21226206Ethyl acetate hexaneHCID 136334117HCID 136334117、化合物

生成物 1

HCID 69552004HCID 69552004、化合物収率 75.3%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
85 °C

実験手順

To a stirred solution of 6-hydroxy-1-(3-isopropoxy-benzoyl)-7-methoxy-isoquinoline-4-carboxylic acid ethyl ester (73 mg, 0.18 mmol) in N,N dimethylformamide (2 mL) was added potassium carbonate (197 mg, 1.42 mmol) and 1,2-dibromoethane (0.046 mL, 0.89 mmol) at room temperature. The reaction mixture was heated 85° C. for 2 hrs. The solvent was evaporated and the crude product was diluted with ethyl acetate and water. The aqueous phase was extracted with ethyl acetate (3×20 mL). The combined extracts were washed with saturated aqueous sodium chloride solution (20 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. Flash chromatography (Merck Silica gel 60, 70–230 mesh, 30% ethyl acetate/hexane) afforded 6-(2-bromo-ethoxy)-1-(3-isopropoxy-benzoyl)-7-methoxy-isoquinoline-4-carboxylic acid ethyl ester as a white solid (70 mg, 75% yield).

後処理

  1. customThe solvent was evaporated
  2. additionthe crude product was diluted with ethyl acetate and water
  3. extractionThe aqueous phase was extracted with ethyl acetate (3×20 mL)
  4. washThe combined extracts were washed with saturated aqueous sodium chloride solution (20 mL)
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-0a2e8794a064488fa5c11c9bf67b28a1
出典データセット
uspto-grants-2006_06
特許番号
US07067529B2

反応ノート

読み込み中…