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Ethyl Acetate → Methyl 2'-cyano-3-methoxybiphenyl-4-carboxylate

HRID 2048589
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인쇄 미리보기

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HRID 2048589 반응식
Br[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([O:12][CH3:13])[CH:3]=1.[C:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1B(O)O)#[N:15].C(=O)([O-])[O-].[Cs+].[Cs+].C(OCC)(=O)C>O1CCCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].O>[C:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([O:12][CH3:13])[CH:3]=1)#[N:15]
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참가 물질

8

반응물 4

HCID 8857Ethyl AcetateHCID 10796Cesium carbonateHCID 27346102-Cyanophenylboronic acidHCID 15128242Methyl 4-bromo-2-methoxybenzoate

생성물 1

HCID 67009848Methyl 2'-cyano-3-methoxybiphenyl-4-carboxylate수율 35.6%

시약·촉매·용매 3

HCID 44119782
Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)
촉매
HCID 962Water용매
HCID 8028Tetrahydrofuran용매

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온도
70 °C

실험 절차

A suspension of methyl 4-bromo-2-methoxybenzoate (4.9 g), (2-cyanophenyl)boronic acid (5.9 g), Pd(dppf)2Cl2 (0.49 g) and 2M aqueous cesium carbonate solution (20 mL) in tetrahydrofuran (60 mL) was stirred under an argon atmosphere at 70° C. for 3 hr. The mixture was allowed to cool, ethyl acetate and water were added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow amorphous solid (1.9 g, 35%).

후처리

  1. temperatureto cool
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with water and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-8e39fdd956fa4846898202639acb3f66
출처 데이터셋
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08592431B2

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