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Water → 1-(3-Cyclohexyl-3-hydroxy-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)-4-(4-methoxyphenyl)piperazine

HRID 1272293
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HRID 1272293 반응식
[CH:1]1([Mg]Br)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[CH3:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([N:17]2[CH2:22][CH2:21][N:20]([C:23]3[C:24]([CH3:37])=[C:25]([CH3:36])[C:26]4[O:30][C:29]([CH3:32])([CH3:31])[C:28](=[O:33])[C:27]=4[C:34]=3[CH3:35])[CH2:19][CH2:18]2)=[CH:13][CH:12]=1.O>C1COCC1>[CH:1]1([C:28]2([OH:33])[C:27]3[C:34]([CH3:35])=[C:23]([N:20]4[CH2:21][CH2:22][N:17]([C:14]5[CH:15]=[CH:16][C:11]([O:10][CH3:9])=[CH:12][CH:13]=5)[CH2:18][CH2:19]4)[C:24]([CH3:37])=[C:25]([CH3:36])[C:26]=3[O:30][C:29]2([CH3:31])[CH3:32])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 962WaterHCID 229355955-[4-(4-methoxyphenyl)piperazin-1-yl]-2,2,4,6,7-pentamethyl-1-benzofuran-3(2H)-oneHCID 178419651HCID 178419651, 화합물

생성물 1

HCID 101627441-(3-Cyclohexyl-3-hydroxy-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)-4-(4-methoxyphenyl)piperazine수율 80.1%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran
용매

실험 절차

Cyclohexyl magnesium bromide (THF solution 1.0 M, 35 mL, 35 mmol) was added to a solution of 4-(4-methoxyphenyl)-1-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-3-on-5-yl)piperazine (1.00 g, 2.53 mmol) obtained in Reference Example 13 in THF (10 ml) under ice cooling and the reaction mixture was allowed to warm to room temperature. After stirring for one hour, the resulting mixture was poured into water and extracted with ethyl acetate. The organic extract was washed with water and saturated aqueous sodium chloride, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified with silica gel column chromatography (hexane/ethyl acetate=8/1) to obtain 970 mg (yield 80%) of the title compound via recrystallization (hexane). mp. 166–167° C.

후처리

  1. extractionextracted with ethyl acetate
  2. extractionThe organic extract
  3. washwas washed with water and saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified with silica gel column chromatography (hexane/ethyl acetate=8/1)

출처 및 근거

ORD 기록
ord-0712681781f14e8e83832f9b12041733
출처 데이터셋
uspto-grants-2007_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07208495B2

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