1,2-Dimethoxyethane → Methyl 4-fluoro-2-(pyridin-4-yl)benzoate

HRID 60588

반응식

HRID 60588 반응식
Br[C:2]1[CH:11]=[C:10]([F:12])[CH:9]=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].[N:13]1[CH:18]=[CH:17][C:16](B(O)O)=[CH:15][CH:14]=1.C(=O)([O-])[O-].[Na+].[Na+].COCCOC>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:12][C:10]1[CH:9]=[CH:8][C:3]([C:4]([O:6][CH3:7])=[O:5])=[C:2]([C:16]2[CH:17]=[CH:18][N:13]=[CH:14][CH:15]=2)[CH:11]=1

참가 물질

7

반응물 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 2734379(Pyridin-4-yl)boronic acidHCID 7210837Methyl 2-bromo-4-fluorobenzoate

생성물 1

HCID 46317422Methyl 4-fluoro-2-(pyridin-4-yl)benzoate수율 59.8%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매2회

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온도
120 °C

실험 절차

A mixture of methyl 2-bromo-4-fluorobenzoate (1.5 g), pyridine-4-boronic acid (0.95 g), sodium carbonate (1.0 g), tetrakis(triphenylphosphine)palladium(0) (0.22 g), water (1.5 mL) and DME (9.0 mL) was stirred at 120° C. for 1 hr under microwave irradiation. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.89 g).

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

출처 및 근거

ORD 기록
ord-279aedb3060b49db9ab32e904f7320cc
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09440990B2

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