Potassium Carbonate → Tert-butyl 4-(4-{[4-(propan-2-yloxy)phenoxy]methyl}benzyl)piperazine-1-carboxylate

HRID 1023338노트

반응식

HRID 1023338 반응식
Cl[CH2:2][C:3]1[CH:22]=[CH:21][C:6]([CH2:7][N:8]2[CH2:13][CH2:12][N:11]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH2:10][CH2:9]2)=[CH:5][CH:4]=1.[CH:23]([O:26][C:27]1[CH:32]=[CH:31][C:30]([OH:33])=[CH:29][CH:28]=1)([CH3:25])[CH3:24].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.O>[CH3:25][CH:23]([O:26][C:27]1[CH:32]=[CH:31][C:30]([O:33][CH2:2][C:3]2[CH:22]=[CH:21][C:6]([CH2:7][N:8]3[CH2:13][CH2:12][N:11]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH2:10][CH2:9]3)=[CH:5][CH:4]=2)=[CH:29][CH:28]=1)[CH3:24]

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 820014-IsopropoxyphenolHCID 67379301Tert-butyl 4-(4-(chloromethyl)benzyl)piperazine-1-carboxylate

생성물 1

HCID 67328500Tert-butyl 4-(4-{[4-(propan-2-yloxy)phenoxy]methyl}benzyl)piperazine-1-carboxylate수율 99.9%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

To a solution of tert-butyl 4-[4-(chloromethyl)benzyl]piperazine-1-carboxylate (4.00 g) in DMF (25 mL) were added 4-isopropoxyphenol (2.81 g) and K2CO3 (3.40 g) at room temperature, then the reaction mixture was stirred for 2 days. The reaction mixture was diluted with H2O, and extracted with AcOEt. The organic layer was washed with water and saturated aqueous NaCl, dried over anhydrous Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (n-hexane/AcOEt=3/1 to 1/1) to afford tert-butyl 4-(4-{[4-(propan-2-yloxy)phenoxy]methyl}benzyl)piperazine-1-carboxylate as a colorless solid (5.42 g).

후처리

  1. extractionextracted with AcOEt
  2. washThe organic layer was washed with water and saturated aqueous NaCl
  3. dry with materialdried over anhydrous Na2SO4
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (n-hexane/AcOEt=3/1 to 1/1)

출처 및 근거

ORD 기록
ord-f39faea518fa41879472501cc3b744a6
출처 데이터셋
uspto-grants-2014_05
특허 번호
US08722663B2

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