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Acetic Acid → 4-(5-Cyclopropylamino-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalene-2-ylethynyl)-benzoic acid ethyl ester

HRID 395029
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HRID 395029 반응식
[CH2:1]([O:3][C:4](=[O:26])[C:5]1[CH:10]=[CH:9][C:8]([C:11]#[C:12][C:13]2[CH:22]=[CH:21][C:20]3[C:19](=O)[CH2:18][CH2:17][C:16]([CH3:25])([CH3:24])[C:15]=3[CH:14]=2)=[CH:7][CH:6]=1)[CH3:2].[CH:27]1([NH2:30])[CH2:29][CH2:28]1.C(O)(=O)C.C([BH3-])#N.[Na+]>ClCCl.C(#N)C.O.C(=O)([O-])[O-].[Na+].[Na+]>[CH2:1]([O:3][C:4](=[O:26])[C:5]1[CH:6]=[CH:7][C:8]([C:11]#[C:12][C:13]2[CH:22]=[CH:21][C:20]3[CH:19]([NH:30][CH:27]4[CH2:29][CH2:28]4)[CH2:18][CH2:17][C:16]([CH3:25])([CH3:24])[C:15]=3[CH:14]=2)=[CH:9][CH:10]=1)[CH3:2]
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참가 물질

9

반응물 4

HCID 176Acetic AcidHCID 69828CyclopropylamineHCID 5003444Sodium cyanoborohydrideHCID 15345545Ethyl 4-[(5,6,7,8-tetrahydro-8,8-dimethyl-5-oxonaphth-2-yl)ethynyl]benzoate2회

생성물 1

HCID 129717084-(5-Cyclopropylamino-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalene-2-ylethynyl)-benzoic acid ethyl ester수율 64.5%

시약·촉매·용매 4

HCID 962Water용매HCID 6342Acetonitrile용매HCID 6344Dichloromethane용매HCID 10340Sodium Carbonate용매

실험 절차

A solution of 4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydronaphthalene-2-ylethynyl)-benzoic acid ethyl ester (Intermediate 14, 0.14 g, 0.4 mmol) in 3 mL of dichloromethane and 2 mL of acetonitrile was treated with cyclopropyl amine (1 mL, 14.45 mmol). After 5 minutes, acetic acid (1 mL) was added followed by sodium cyanoborohydride (0.13 g, 2 mmol). The reaction was stirred overnight at ambient temperature. It was then diluted with water and saturated aqueous sodium carbonate solution and extracted with dichloromethane (×2). The combined organic extract was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to an oil. Flash column chromatography over silica gel (230-400 mesh) using 20% ethyl acetate in hexane as the eluent afforded the title compound (0.1 g, 62%) as a pale yellow solid.

후처리

  1. extractionextracted with dichloromethane (×2)
  2. extractionThe combined organic extract
  3. dry with materialwas dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. customevaporated in vacuo to an oil

출처 및 근거

ORD 기록
ord-5a7b73c43209416c9928d9554a880cb7
출처 데이터셋
uspto-grants-2003_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06603019B2

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