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2-Bromobenzonitrile → HCID 22285268, 화합물

HRID 2183913
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HRID 2183913 반응식
[F:1][C:2]1[CH:3]=[C:4](B2OCC(C)(C)CO2)[CH:5]=[C:6]([N+:8]([O-:10])=[O:9])[CH:7]=1.Br[C:20]1[CH:27]=[CH:26][CH:25]=[CH:24][C:21]=1[C:22]#[N:23]>COCCOC.C(=O)([O-])[O-].[Na+].[Na+].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:3]=[C:4]([C:20]2[C:21]([C:22]#[N:23])=[CH:24][CH:25]=[CH:26][CH:27]=2)[CH:5]=[C:6]([N+:8]([O-:10])=[O:9])[CH:7]=1
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참가 물질

6

반응물 2

HCID 162722-BromobenzonitrileHCID 22285295HCID 22285295, 화합물

생성물 1

HCID 22285268HCID 22285268, 화합물수율 72.1%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 80711,2-Dimethoxyethane용매
HCID 10340
Sodium Carbonate
용매

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온도
90 °C

실험 절차

A mixture of 2-(3-fluoro-5-nitrophenyl)-5,5-dimethyl-[1,3,2]dioxaborinane (15 g, 59 mmol) and 2-bromobenzonitrile (12.4 g, 68.2 mmol) in 1,2-dimethoxyethane (125 ml) and 2M aqueous sodium carbonate (50 ml) was degassed with nitrogen for 30 min then treated with tetrakis(triphenylphosphine)palladium(0) (2.06 g, 1.8 mmol). The reaction was then heated at 90° C. for 16 h, cooled to ambient temperature and partitioned between ethyl acetate and water. The organics were washed with brine, dried over anhydrous magnesium sulfate, filtered and pre-adsorbed onto silica. Purification by dry flash chromatography on silica, eluting with isohexane (containing 1% methanol) on a gradient of ethyl acetate (10-40%) afforded 3′-fluoro-5′-nitrobiphenyl-2-carbonitrile as a cream-coloured solid (10.3 g, 72%): δH (400 MHz, CDCl3) 7.54-7.61 (2H, m), 7.65 (1H, ddd, J 8, 2 and 2), 7.74 (1H, ddd, J 8, 8 and 2), 7.84 (1H, dd, J 8 and 2), 8.03 (1H, ddd, J 8, 8 and 2), 8.22-8.24 (1H, m).

후처리

  1. customwas degassed with nitrogen for 30 min
  2. temperaturecooled to ambient temperature
  3. custompartitioned between ethyl acetate and water
  4. washThe organics were washed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered and pre-adsorbed onto silica
  7. customPurification
  8. customby dry flash chromatography on silica
  9. washeluting with isohexane (containing 1% methanol) on a gradient of ethyl acetate (10-40%)

출처 및 근거

ORD 기록
ord-12b394ef98d84a0a9382fa1cfce90d57
출처 데이터셋
uspto-grants-2005_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06900215B2

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