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Water → Methyl 8-[4-(2-propoxyethoxy)phenyl]-1-propyl-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate

HRID 402295
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HRID 402295 반응식
Br[C:2]1[CH:3]=[CH:4][C:5]2[N:12]([CH2:13][CH2:14][CH3:15])[CH2:11][CH2:10][CH2:9][C:8]([C:16]([O:18][CH3:19])=[O:17])=[CH:7][C:6]=2[CH:20]=1.[CH2:21]([O:25][CH2:26][CH2:27][O:28][C:29]1[CH:34]=[CH:33][C:32](OB(O)O)=[CH:31][CH:30]=1)[CH2:22][CH2:23]C.C(=O)([O-])[O-].[K+].[K+].O>C1(C)C(CCO)=CC=CC=1.O>[CH2:21]([O:25][CH2:26][CH2:27][O:28][C:29]1[CH:30]=[CH:31][C:32]([C:2]2[CH:3]=[CH:4][C:5]3[N:12]([CH2:13][CH2:14][CH3:15])[CH2:11][CH2:10][CH2:9][C:8]([C:16]([O:18][CH3:19])=[O:17])=[CH:7][C:6]=3[CH:20]=2)=[CH:33][CH:34]=1)[CH2:22][CH3:23]
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참가 물질

6

반응물 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 230910874-(2-Butoxyethoxy)phenylboric acidHCID 68650111Methyl 8-bromo-1-propyl-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate

생성물 1

HCID 68650188Methyl 8-[4-(2-propoxyethoxy)phenyl]-1-propyl-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate수율 56.7%

시약·촉매·용매 1

HCID 66602552Toluene-ethanol water용매

실험 절차

Under argon atmosphere, a mixture of methyl 8-bromo-1-propyl-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate (1.5 g), 4-(2-butoxyethoxy)phenyl boric acid (1.29 g) and potassium carbonate (1.23 g) in toluene-ethanol-water (45-4.5-4.5 ml) was stirred at room temperature for 1 hour. To the reaction system was added tetrakis-(triphenylphosphine)palladium (0.26 g) was added, and the mixture was refluxed for 4 hours. After cooling to room temperature, water was added and the reaction mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried with magnesium sulfate. After concentration under reduced pressure, the residue was separated to purify by column chromatography (ethyl acetate:hexane=1:49→1:19→1:9) to give methyl 8-[4-(2-propoxyethoxy)phenyl]-1-propyl-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate (1.10 g) as a yellow oily material.

후처리

  1. additionwas added
  2. temperaturethe mixture was refluxed for 4 hours
  3. temperatureAfter cooling to room temperature
  4. extractionthe reaction mixture was extracted with ethyl acetate
  5. washThe organic layer was washed with saturated brine
  6. dry with materialdried with magnesium sulfate
  7. concentrationAfter concentration under reduced pressure
  8. customthe residue was separated
  9. customto purify by column chromatography (ethyl acetate:hexane=1:49→1:19→1:9)

출처 및 근거

ORD 기록
ord-6b60f0d914fd4f1f9b07b8c9f4c935e5
출처 데이터셋
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08741943B2

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