Water → HCID 54082443, 화합물

HRID 1277278노트

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HRID 1277278 반응식
Br[C:2]1[CH:3]=[CH:4][C:5]2[O:11][CH2:10][CH2:9][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:7][C:6]=2[CH:16]=1.B([O-])([O-])O[C:19]1[CH:24]=[CH:23][C:22]2[O:25][CH2:26][O:27][C:21]=2[CH:20]=1.C(=O)([O-])[O-].[Na+].[Na+].O>COCCOC.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.C(OCC)(=O)C>[CH2:26]1[O:27][C:21]2[CH:20]=[CH:19][C:24]([C:2]3[CH:3]=[CH:4][C:5]4[O:11][CH2:10][CH2:9][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:7][C:6]=4[CH:16]=3)=[CH:23][C:22]=2[O:25]1

참가 물질

8

반응물 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 22990005Methyl 7-bromo-2,3-dihydro-1-benzooxepine-4-carboxylateHCID 867561803,4-Methlenedioxyphenyl borate

생성물 1

HCID 54082443HCID 54082443, 화합물수율 67%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 80711,2-Dimethoxyethane용매HCID 8857Ethyl Acetate용매

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온도
80 °C

실험 절차

In 1,2-dimethoxyethane(12 ml) were dissolved methyl 7-bromo-2,3-dihydro-1-benzoxepine-4-carboxylate (566 mg, 2.00 mmol) and 3,4-methylenedioxyphenyl borate (465 mg, 2.80 mmol). To the mixture were added sodium carbonate (424 mg, 4.00 mmol), water (2 ml) and tetrakis(triphenylphosphine)palladium (162 mg, 0.14 mmol), and the mixture was stirred at 80° C. for 14 hours. To the mixture was added ethyl acetate (30 ml), and the mixture was extracted with water (5 ml×2) and saturated brine (5 ml). The organic layer was dried with anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified with column chromatography (silica gel 15 g, ethyl acetate/hexane=1/19), and the desired fraction was concentrated under reduced pressure. To the residue was added diisopropylether, and the insoluble materials were filtered, which were washed with diisopropylether and dried under reduced pressure to give methyl 7-(3,4-methylenedioxyphenyl)-2,3-dihydro-1-benzoxepine-4-carboxylate (434 mg, 1.34 mmol, 67%).

후처리

  1. extractionthe mixture was extracted with water (5 ml×2) and saturated brine (5 ml)
  2. dry with materialThe organic layer was dried with anhydrous magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified with column chromatography (silica gel 15 g, ethyl acetate/hexane=1/19)
  5. concentrationthe desired fraction was concentrated under reduced pressure
  6. additionTo the residue was added diisopropylether
  7. filtrationthe insoluble materials were filtered
  8. washwhich were washed with diisopropylether
  9. customdried under reduced pressure

출처 및 근거

ORD 기록
ord-e7c1db81463d4c96b4396b575ce9e21b
출처 데이터셋
uspto-grants-2000_12
특허 번호
US06166006

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