Ethyl Acetate → 2-(3-Dimethylamino-5-fluoro-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester

HRID 1800982ノート

反応式

HRID 1800982 の反応式
[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:21]=[C:20]([F:22])[CH:19]=[C:18](Br)[CH:17]=1)[C:10]([CH3:25])([CH3:24])[CH2:9]2)=[O:5])[CH3:2].Cl.[CH3:27][NH:28][CH3:29].[OH-].[K+].C(OCC)(=O)C>CS(C)=O.[Cu]I>[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:21]=[C:20]([F:22])[CH:19]=[C:18]([N:28]([CH3:29])[CH3:27])[CH:17]=1)[C:10]([CH3:25])([CH3:24])[CH2:9]2)=[O:5])[CH3:2]

参加物

7

反応物 4

HCID 8857Ethyl AcetateHCID 10473Dimethylamine, hydrochlorideHCID 14797Potassium HydroxideHCID 674437712-(3-Bromo-5-fluoro-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester

生成物 1

HCID 674409012-(3-Dimethylamino-5-fluoro-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester収率 30%

試薬・触媒・溶媒 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 679Dimethyl Sulfoxide溶媒

反応条件

温度
120 °C

実験手順

A mixture of 2-(3-bromo-5-fluoro-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (0.41 g, 1.0 mmol), dimethylamine hydrochloride (0.41 g, 5 mmol), copper (I) iodide (0.12 g, 0.6 mmol) and potassium hydroxide (0.34, 6.0 mmol) in DMSO (5 mL) was heated for 3 hours at 120° C. After cooling to room temperature, the mixture was treated with ethyl acetate (50 mL) and washed with water (20 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated in vacuo. Purification on flash silica gel chromatography (silica gel from QingDao, 200-300 mesh, glass column from Shanghai SD company) (20% ethyl acetate/hexanes) to afford 2-(3-dimethylamino-5-fluoro-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (0.11 g, 30%) as a white solid: LC/MS m/e calcd for C22H27FN2O2 (M+H)+: 371.47, observed: 371.3.

後処理

  1. temperatureAfter cooling to room temperature
  2. washwashed with water (20 mL)
  3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customPurification on flash silica gel chromatography (silica gel from QingDao, 200-300 mesh, glass column from Shanghai SD company) (20% ethyl acetate/hexanes)

出典と根拠

ORDレコード
ord-fc51982ab3864d369d507c588ba7b76f
出典データセット
uspto-grants-2013_01
特許番号
US08344137B2

反応ノート

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