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Hydrochloric Acid → tert-Butyl 4-(4-bromo-1-(2-hydroxyethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate

HRID 2088886
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HRID 2088886 반응식
[Br:1][C:2]1[N:3]=[C:4]([CH:16]2[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]2)[N:5]([CH2:7][CH2:8][O:9]C2CCCCO2)[CH:6]=1.O1CCCC1.Cl>C(OCC)(=O)C>[Br:1][C:2]1[N:3]=[C:4]([CH:16]2[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]2)[N:5]([CH2:7][CH2:8][OH:9])[CH:6]=1
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참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 67265112tert-Butyl 4-(4-bromo-1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate

생성물 1

HCID 67265139tert-Butyl 4-(4-bromo-1-(2-hydroxyethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate수율 94%

시약·촉매·용매 1

HCID 8857Ethyl Acetate
용매

실험 절차

Combine tert-butyl 4-(4-bromo-1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate (5.00 g, 10.91 mmol), tetrahydrofuran (150 mL), and 1 M aqueous hydrochloric acid (50 mL); let stir overnight at room temperature. Dilute with ethyl acetate. Wash with excess 1M aqueous sodium hydroxide, followed by saturated aqueous sodium chloride. Dry the organics over anhydrous magnesium sulfate, filter, and concentrate in vacuo to give the title compound as a yellow foam (3.84 g, 94%). MS (ES) m/z=376 [M]+.

후처리

  1. washWash with excess 1M aqueous sodium hydroxide
  2. dry with materialDry the organics over anhydrous magnesium sulfate
  3. filtrationfilter
  4. concentrationconcentrate in vacuo

출처 및 근거

ORD 기록
ord-e4e2d84b9462414580b2e8027db94071
출처 데이터셋
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08436002B2

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