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Sodium Hydroxide → Tert-butyl 4-(bromo(3-(5-(trifluoromethyl)pyridin-2-yloxy)phenyl)methylene)piperidine-1-carboxylate

HRID 1666475
ノート
印刷プレビュー

反応式

HRID 1666475 の反応式
Br[C:2]1([CH:15]([Br:33])[C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([O:22][C:23]3[CH:28]=[CH:27][C:26]([C:29]([F:32])([F:31])[F:30])=[CH:25][N:24]=3)[CH:17]=2)[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4][CH2:3]1.[OH-].[Na+]>CO>[Br:33][C:15]([C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([O:22][C:23]2[CH:28]=[CH:27][C:26]([C:29]([F:30])([F:31])[F:32])=[CH:25][N:24]=2)[CH:17]=1)=[C:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4][CH2:3]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 2

HCID 14798Sodium HydroxideHCID 66876019Tert-butyl 4-bromo-4-(bromo(3-(5-(trifluoromethyl)pyridin-2-yloxy)phenyl)methyl)piperidine-1-carboxylate

生成物 1

HCID 66876318Tert-butyl 4-(bromo(3-(5-(trifluoromethyl)pyridin-2-yloxy)phenyl)methylene)piperidine-1-carboxylate収率 55.2%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

反応条件

温度
40 °C

実験手順

To a solution of tert-butyl 4-bromo-4-(bromo(3-(5-(trifluoromethyl)pyridin-2-yloxy)phenyl)methyl)piperidine-1-carboxylate (890 mg, 1.50 mmol) in MeOH (5 mL) was added 2N NaOH (3 mL). The reaction was stirred at 40° C. for 14 h. The reaction was concentrated and the residue was dissolved in ethyl acetate. Water was added and the pH was adjusted to 2 using concentrated HCl. The organic layer was concentrated and the residue was purified by silica gel column chromatography (0-5% MeOH/CH2Cl2) to afford the title compound (425 mg, 55% yield) as a white solid.

後処理

  1. concentrationThe reaction was concentrated
  2. dissolutionthe residue was dissolved in ethyl acetate
  3. additionWater was added
  4. concentrationThe organic layer was concentrated
  5. customthe residue was purified by silica gel column chromatography (0-5% MeOH/CH2Cl2)

出典と根拠

ORDレコード
ord-690996efae8845569e18668346e451cd
出典データセット
uspto-grants-2011_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08044052B2

反応ノート

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