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tert-Butanol → (1H-benzo[d]imidazol-2-yl)(4-(3-(2-(4-methoxybenzyloxy)pyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone

HRID 887409
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HRID 887409 반응식
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([C:12]1[CH:17]=[CH:16][C:15]([O:18][C:19]2[C:24]([C:25]3[C:26](F)=[N:27][CH:28]=[CH:29][CH:30]=3)=[N:23][CH:22]=[CH:21][N:20]=2)=[CH:14][CH:13]=1)=[O:11].[CH3:32][O:33][C:34]1[CH:41]=[CH:40][C:37]([CH2:38][OH:39])=[CH:36][CH:35]=1.CC(C)([O-])C.[K+].CC(O)(C)C>C1(C)C=CC=CC=1.C(Cl)Cl>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([C:12]1[CH:17]=[CH:16][C:15]([O:18][C:19]2[C:24]([C:25]3[C:26]([O:39][CH2:38][C:37]4[CH:40]=[CH:41][C:34]([O:33][CH3:32])=[CH:35][CH:36]=4)=[N:27][CH:28]=[CH:29][CH:30]=3)=[N:23][CH:22]=[CH:21][N:20]=2)=[CH:14][CH:13]=1)=[O:11]
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참가 물질

7

반응물 4

HCID 6386tert-ButanolHCID 77384-Methoxybenzyl alcoholHCID 23665647Potassium tert-butoxideHCID 59351416(1H-benzo[d]imidazol-2-yl)(4-(3-(2-fluoropyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone

생성물 1

HCID 59351184(1H-benzo[d]imidazol-2-yl)(4-(3-(2-(4-methoxybenzyloxy)pyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone

시약·촉매·용매 2

HCID 1140Toluene용매
HCID 6344Dichloromethane용매

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온도
80 °C

실험 절차

To a mixture of (1H-benzo[d]imidazol-2-yl)(4-(3-(2-fluoropyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone (200 mg, 0.486 mmol) and 4-methoxybenzyl alcohol (0.905 mL, 7.29 mmol) in toluene in a 6 mL tube was added potassium tert-butoxide, 1.0 m solution in 2-methyl-2-propanol (2.431 mL, 2.431 mmol). The reaction was heated to 80° C. After 7 min a mixture of products was observed by LC/MS. The mixture was diluted with DCM (30 mL), and washed with water (3×25 mL) and brine (30 mL). It was dried over magnesium sulfate, concentrated and dried in vacuo. It was purified by flash chromatography (40 g SiliaSep pre-packed silica gel column, eluent: 0-40% EtOAc in hexane) to give (1H-benzo[d]imidazol-2-yl)(4-(3-(2-(4-methoxybenzyloxy)pyridin-3-yl)pyrazin-2-yloxy)phenyl)methanone. MS (ESI, pos. ion) m/z: 532.0 (M+1).

후처리

  1. additionAfter 7 min a mixture of products
  2. washwashed with water (3×25 mL) and brine (30 mL)
  3. dry with materialIt was dried over magnesium sulfate
  4. concentrationconcentrated
  5. customdried in vacuo
  6. customIt was purified by flash chromatography (40 g SiliaSep pre-packed silica gel column, eluent: 0-40% EtOAc in hexane)

출처 및 근거

ORD 기록
ord-fac2297c5e814c3899ab196e6e0ce4bd
출처 데이터셋
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08247418B2

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