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Hydrochloric Acid → 1-Isobutyl-8-[4-(2-propoxyethoxy)phenyl]-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylic acid

HRID 402294
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인쇄 미리보기

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HRID 402294 반응식
[CH2:1]([N:5]1[C:12]2[CH:13]=[CH:14][C:15]([C:17]3[CH:22]=[CH:21][C:20]([O:23][CH2:24][CH2:25][O:26][CH2:27][CH2:28][CH3:29])=[CH:19][CH:18]=3)=[CH:16][C:11]=2[CH:10]=[C:9]([C:30]([O:32]C)=[O:31])[CH2:8][CH2:7][CH2:6]1)[CH:2]([CH3:4])[CH3:3].[OH-].[Na+].Cl>C(O)C.C1COCC1>[CH2:1]([N:5]1[C:12]2[CH:13]=[CH:14][C:15]([C:17]3[CH:18]=[CH:19][C:20]([O:23][CH2:24][CH2:25][O:26][CH2:27][CH2:28][CH3:29])=[CH:21][CH:22]=3)=[CH:16][C:11]=2[CH:10]=[C:9]([C:30]([OH:32])=[O:31])[CH2:8][CH2:7][CH2:6]1)[CH:2]([CH3:4])[CH3:3]
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참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 68650210Methyl 1-isobutyl-8-[4-(2-propoxyethoxy)phenyl]-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate

생성물 1

HCID 686502401-Isobutyl-8-[4-(2-propoxyethoxy)phenyl]-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylic acid수율 82.6%

시약·촉매·용매 1

HCID 21873804
Tetrahydrofuran ethanol
용매

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온도
60 °C

실험 절차

To a solution of methyl 1-isobutyl-8-[4-(2-propoxyethoxy)phenyl]-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylate (1.20 g) in a mixture of ethanol-THF (10-5 ml) was added an aqueous 1N sodium hydroxide solution (5.2 ml) at room temperature. The mixture was stirred at 60° C. for 16 hours and cooled to 0° C., 1N Hydrochloric acid (6 ml) was added and the 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 precipitated crystals were collected by filtration. The crystals were washed with diisopropylether to give 1-isobutyl-8-[4-(2-propoxyethoxy)phenyl]-1,2,3,4-tetrahydro-1-benzazocine-5-carboxylic acid (0.96 g) as yellow crystals.

후처리

  1. temperaturecooled to 0° C.
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried with magnesium sulfate
  5. concentrationAfter concentration under reduced pressure
  6. filtrationthe precipitated crystals were collected by filtration
  7. washThe crystals were washed with diisopropylether

출처 및 근거

ORD 기록
ord-9087d0cdfa3a43c7aa927a3137d13294
출처 데이터셋
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08741943B2

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