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Imidazole → ((R)-3-bromo-2-methylpropoxy)-tert-butyldiphenylsilane

HRID 1436142
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HRID 1436142 반응식
[C:1]([Si:5]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)Cl)([CH3:4])([CH3:3])[CH3:2].N1C=CN=C1.[Br:24][CH2:25][C@H:26]([CH3:29])[CH2:27][OH:28].O>C1COCC1>[Br:24][CH2:25][C@H:26]([CH3:29])[CH2:27][O:28][Si:5]([C:1]([CH3:4])([CH3:3])[CH3:2])([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 795ImidazoleHCID 962WaterHCID 94078tert-ButyldiphenylchlorosilaneHCID 10441885(R)-(-)-3-Bromo-2-methyl-1-propanol

생성물 1

HCID 69007455((R)-3-bromo-2-methylpropoxy)-tert-butyldiphenylsilane

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

tert-Butyldiphenylchlorosilane (83 mL) and imidazole (30 g) were added to a solution of (R)-3-bromo-2-methyl-1-propanol (45 g) in THF (150 mL) under ice-cooling, and the reaction mixture was stirred at room temperature overnight. Water was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (carrier: Chromatorex NH; elution solvent: heptane-ethyl acetate system) to obtain 117 g of the title compound. The property values of the compound are as follows.

후처리

  1. temperaturecooling
  2. extractionfollowed by extraction with ethyl acetate
  3. washThe organic layer was washed with brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (carrier: Chromatorex NH; elution solvent: heptane-ethyl acetate system)

출처 및 근거

ORD 기록
ord-52b61b7268384981a099ffc3bb22d10b
출처 데이터셋
uspto-grants-2009_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07618960B2

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