Ethyl Acetate → Ethyl 2-(6-amino-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4-methylpentanoate

HRID 1512494ノート

反応式

HRID 1512494 の反応式
[NH2:1][C:2]1[C:7]([O:8][CH2:9][C:10]([F:13])([F:12])[F:11])=[CH:6][C:5]([CH:14]([CH2:20][CH:21]([CH3:23])[CH3:22])[C:15]([O:17][CH2:18][CH3:19])=[O:16])=[CH:4][C:3]=1Br.[F:25][C:26]([F:37])([F:36])[C:27]1[CH:32]=[CH:31][C:30](B(O)O)=[CH:29][CH:28]=1.[F-].[Cs+].CCOC(C)=O>COCCOC.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[NH2:1][C:2]1[C:3]([C:30]2[CH:31]=[CH:32][C:27]([C:26]([F:37])([F:36])[F:25])=[CH:28][CH:29]=2)=[CH:4][C:5]([CH:14]([CH2:20][CH:21]([CH3:23])[CH3:22])[C:15]([O:17][CH2:18][CH3:19])=[O:16])=[CH:6][C:7]=1[O:8][CH2:9][C:10]([F:13])([F:12])[F:11]

参加物

8

反応物 4

HCID 8857Ethyl AcetateHCID 25953Cesium fluorideHCID 27343894-(Trifluoromethyl)phenylboronic acidHCID 57995485Ethyl 2-(4-amino-3-bromo-5-(2,2,2-trifluoroethoxy)phenyl)-4-methylpentanoate

生成物 1

HCID 57995476Ethyl 2-(6-amino-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)-4-methylpentanoate収率 85.1%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 80711,2-Dimethoxyethane溶媒

実験手順

A mixture of ethyl 2-(4-amino-3-bromo-5-(2,2,2-trifluoroethoxy)phenyl)-4-methylpentanoate (0.70 g, 1.6 mmol), 4-trifluoromethylphenylboronic acid (0.642 g, 3.39 mmol), CsF (0.641 g, 4.2 mmol) and Pd (PPh3)4 (0.196 g, 0.16 mmol) in 40 mL anhydrous 1,2-dimethoxy ethane was refluxed for 8 h under argon. The reaction mixture was cooled, and 35 mL of EtOAc and 35 mL of water were added. The organic phase was separated, dried over Na2SO4, filtered and concentrated under reduced pressure to yellow oil. The oil was purified by chromatography over silica gel (hexane/EtOAc) to give ethyl 2-(6-amino-5-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-4-methylpentanoate (650 mg) as a colorless liquid.

後処理

  1. temperaturewas refluxed for 8 h under argon
  2. temperatureThe reaction mixture was cooled
  3. customThe organic phase was separated
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure to yellow oil
  7. customThe oil was purified by chromatography over silica gel (hexane/EtOAc)

出典と根拠

ORDレコード
ord-63549b620022455aaeb7c9be70b5a927
出典データセット
uspto-grants-2012_07
特許番号
US08217064B2

反応ノート

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