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Sodium Carbonate → (4'-Fluorobiphenyl-2-yl)methanol

HRID 76856
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HRID 76856 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5](B(O)O)=[CH:4][CH:3]=1.Br[C:12]1[CH:19]=[CH:18][CH:17]=[CH:16][C:13]=1[CH2:14][OH:15].C([O-])([O-])=O.[Na+].[Na+]>COCCOC.CCOC(C)=O.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:12]2[CH:19]=[CH:18][CH:17]=[CH:16][C:13]=2[CH2:14][OH:15])=[CH:4][CH:3]=1
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참가 물질

8

반응물 3

HCID 10340Sodium CarbonateHCID 728502-Bromobenzyl alcoholHCID 2856454-Fluorophenylboronic acid

생성물 1

HCID 1392777(4'-Fluorobiphenyl-2-yl)methanol

시약·촉매·용매 4

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매
HCID 80711,2-Dimethoxyethane용매
HCID 8857Ethyl Acetate용매

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온도
115 °C

실험 절차

To a mixture of 4-fluorophenylboronic acid (2.5 g, 13.4 mmol), 2-bromobenzyl alcohol (2.81 g, 20.1 mmol) and Pd(PPh3)4 (0.25 g, 0.216 mmol) in DME (20 mL) is added an aqueous solution of Na2CO3 (11.5 mL, 2.7 M, 31 mmol). The mixture is heated to 115° C. in sealed vessel overnight. The reaction is allowed to cool to room temperature and is diluted with EtOAc and water. The aqueous layer is extracted further with EtOAc (2×). The combined organic layers are washed with water, saturated NH4Cl, brine and dried over Na2SO4. After concentration, the resulting residue is purified by flash chromatography (hexane/CH2Cl2) to give (4′-fluorobiphenyl-2-yl)-methanol as oil. (cas #773871-75-3) 1H NMR (400 MHz, CDCl3) δ (ppm) 7.46-7.43 (m, 1H), 7.32-7.22 (m, 4H), 7.18-7.16 (m, 1H), 7.04-6.99 (m, 2H), 4.48 (d, J=5.5 Hz, 2H), 1.68 (br s, 1H).

후처리

  1. temperatureto cool to room temperature
  2. extractionThe aqueous layer is extracted further with EtOAc (2×)
  3. washThe combined organic layers are washed with water, saturated NH4Cl, brine
  4. dry with materialdried over Na2SO4
  5. concentrationAfter concentration
  6. customthe resulting residue is purified by flash chromatography (hexane/CH2Cl2)

출처 및 근거

ORD 기록
ord-35d1dfceb3c64f939831b842566e1a97
출처 데이터셋
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08835646B2

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