Benzo(B)Thiophene → alpha-[1-[2-(4-Methoxyphenyl)ethyl]-4-piperidinyl]-alpha-(benzo[b]thiophene-2-yl)-2-benzo[b]thiophenemethanol

HRID 1736451

반응식

HRID 1736451 반응식
[S:1]1[CH:5]=[CH:4][C:3]2[CH:6]=[CH:7][CH:8]=[CH:9][C:2]1=2.[CH2:10]([Li])[CH2:11][CH2:12][CH3:13].[CH3:15][O:16][C:17]1[CH:22]=[CH:21][C:20]([CH2:23][CH2:24][N:25]2[CH2:30][CH2:29][CH:28]([C:31]([O:33]C)=O)[CH2:27][CH2:26]2)=[CH:19][CH:18]=1>O1CCCC1>[CH3:15][O:16][C:17]1[CH:18]=[CH:19][C:20]([CH2:23][CH2:24][N:25]2[CH2:26][CH2:27][CH:28]([C:31]([C:10]3[S:1][C:2]4[CH:3]=[CH:4][CH:5]=[CH:13][C:12]=4[CH:11]=3)([C:5]3[S:1][C:2]4[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=4[CH:4]=3)[OH:33])[CH2:29][CH2:30]2)=[CH:21][CH:22]=1

참가 물질

5

반응물 3

HCID 7221Benzo(B)ThiopheneHCID 108695871-[2-(4-Methoxyphenyl)ethyl]-4-piperidinecarboxylic acid, methyl esterHCID 178418339Butyllithium

생성물 1

HCID 18930359alpha-[1-[2-(4-Methoxyphenyl)ethyl]-4-piperidinyl]-alpha-(benzo[b]thiophene-2-yl)-2-benzo[b]thiophenemethanol

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

반응 조건

온도
-78 °C

실험 절차

Dissolve benzo[b]thiophene (10.0 g, 74.5 mmol) in anhydrous tetrahydrofuran (100 mL), place under an argon atmosphere and cool to -78° C. Add, by dropwise addition, n-butyllithium (32.79 mL, 81.97 mmol) and stir briefly. Add, by dropwise addition, a solution of 1-[2-(4-methoxyphenyl)ethyl]-4-piperidinecarboxylic acid, methyl ester (20.67 g, 74.52 mmol) in anhydrous tetrahydrofuran (200 mL) and stir at -78° C. for 1.5 hours. Quench with saturated ammonium chloride, separate the organic phase and extract the aqueous phase with ethyl ether. Combine the organic phases, dry (MgSO4) and evaporate the solvent in vacuo. Purify by chromatography (50% ethyl acetate/hexane) and recrystallize (isopropanol) to give the title compound as a white solid; mp 168°-179° C.

후처리

  1. additionAdd, by dropwise addition
  2. customQuench with saturated ammonium chloride
  3. customseparate the organic phase
  4. extractionextract the aqueous phase with ethyl ether
  5. dry with materialdry (MgSO4)
  6. customevaporate the solvent in vacuo
  7. customPurify by chromatography (50% ethyl acetate/hexane)
  8. customrecrystallize (isopropanol)

출처 및 근거

ORD 기록
ord-ace64f65feda47f8841ed936e502e776
출처 데이터셋
uspto-grants-1996_07
특허 번호
US05541200

연결된 노트

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