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tert-Butyl 4-(4-(4-(benzyloxy)-4'-(trifluoromethyl)biphenyl-3-yl)pyridin-2-yl)piperazine-1-carboxylate → Tert-butyl 4-(4-(4-hydroxy-4'-(trifluoromethyl)biphenyl-3-yl)pyridin-2-yl)piperazine-1-carboxylate

HRID 1619715
ノート
印刷プレビュー

反応式

HRID 1619715 の反応式
C([O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:20]=[CH:19][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:17][CH:16]=2)=[CH:11][C:10]=1[C:25]1[CH:30]=[CH:29][N:28]=[C:27]([N:31]2[CH2:36][CH2:35][N:34]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:33][CH2:32]2)[CH:26]=1)C1C=CC=CC=1>C(O)C.[OH-].[OH-].[Pd+2]>[OH:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:16]=[CH:17][C:18]([C:21]([F:23])([F:24])[F:22])=[CH:19][CH:20]=2)=[CH:11][C:10]=1[C:25]1[CH:30]=[CH:29][N:28]=[C:27]([N:31]2[CH2:36][CH2:35][N:34]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:33][CH2:32]2)[CH:26]=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

4

反応物 1

HCID 58042339tert-Butyl 4-(4-(4-(benzyloxy)-4'-(trifluoromethyl)biphenyl-3-yl)pyridin-2-yl)piperazine-1-carboxylate

生成物 1

HCID 136200880Tert-butyl 4-(4-(4-hydroxy-4'-(trifluoromethyl)biphenyl-3-yl)pyridin-2-yl)piperazine-1-carboxylate収率 59.1%

試薬・触媒・溶媒 2

HCID 9942167Palladium hydroxide触媒HCID 702Ethanol溶媒

反応条件

温度
60 °C

実験手順

tert-Butyl 4-(4-(4-(benzyloxy)-4′-(trifluoromethyl)biphenyl-3-yl)pyridin-2-yl)piperazine-1-carboxylate (Preparation 115, 1.30 g, 2.20 mmol) was dissolved in ethanol (20 mL) at room temperature and palladium hydroxide on activated charcoal (130 mg) was added. The reaction mixture was heated at 60° C. under a hydrogen atmosphere (50 psi) for 18 hours. The mixture was then filtered through a pad of Celite™, rinsed with ethanol and concentrated in vacuo. The residue was purified on silica gel by Biotage (5% to 60% ethyl acetate in heptane over 20 CV). Further purification by reverse phase using acetonitrile/water (5/95-95/5) with 0.1% formic acid as eluent gave the title compound (650 mg, 59%) as a white powder.

後処理

  1. filtrationThe mixture was then filtered through a pad of Celite™
  2. washrinsed with ethanol
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified on silica gel by Biotage (5% to 60% ethyl acetate in heptane over 20 CV)
  5. customFurther purification by reverse phase

出典と根拠

ORDレコード
ord-096e3baa91c04940aa412b57f7ffdb93
出典データセット
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08772293B2

反応ノート

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