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Ethyl Acetate → Ethyl 1-(6-amino-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)cyclopentanecarboxylate

HRID 1183700
ノート
印刷プレビュー

反応式

HRID 1183700 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]([C:14]2([C:19]([O:21][CH2:22][CH3:23])=[O:20])[CH2:18][CH2:17][CH2:16][CH2:15]2)=[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]([C:14]2([C:19]([O:21][CH2:22][CH3:23])=[O:20])[CH2:18][CH2:17][CH2:16][CH2:15]2)=[CH:6][C:7]=1[O:8][CH2:9][C:10]([F:13])([F:12])[F:11]
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 8857Ethyl AcetateHCID 25953Cesium fluorideHCID 27343894-(Trifluoromethyl)phenylboronic acidHCID 57995567Ethyl 1-(4-amino-3-bromo-5-(2,2,2-trifluoroethoxy)phenyl)cyclopentanecarboxylate

生成物 1

HCID 57995640Ethyl 1-(6-amino-5-(2,2,2-trifluoroethoxy)-4'-(trifluoromethyl)biphenyl-3-yl)cyclopentanecarboxylate収率 69.1%

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 1-(4-amino-3-bromo-5-(2,2,2-trifluoroethoxy)phenyl)cyclopentanecarboxylate (5.1 g, 14 mmol), 4-trifluoromethylphenylboronic acid (3.36 g, 17 mmol), CsF (0.28 g, 1.84 mmol) and Pd(PPh3)4 (0.410 g, 0.4 mmol) in 75 mL anhydrous 1,2-dimethoxy ethane was refluxed for 8 h under argon. The reaction mixture was cooled, and 75 mL of EtOAc and 75 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 1-(6-amino-5-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)cyclopentanecarboxylate (4.6 g) as a yellow oil.

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-370c2ad4d3dc41d09c2fa51a45af468a
出典データセット
uspto-grants-2014_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08664249B2

反応ノート

読み込み中…

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