Water → 4-Methoxy-2-methoxycarbonyl-3-(2-phenylethyl)benzo[b]thiophene

HRID 230882Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 230882
[SH:1][C:2]1[CH:17]=[CH:16][CH:15]=[C:14]([O:18][CH3:19])[C:3]=1[C:4](=O)[CH:5]=[CH:6][CH:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH2:8]1.C(N(CC)CC)C.Br[CH2:28][C:29]([O:31][CH3:32])=[O:30].O>ClCCl>[CH3:19][O:18][C:14]1[C:3]2[C:4]([CH2:5][CH2:6][C:7]3[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=3)=[C:28]([C:29]([O:31][CH3:32])=[O:30])[S:1][C:2]=2[CH:17]=[CH:16][CH:15]=1

Komponenten

6

Edukt 4

HCID 962WaterHCID 8471TriethylamineHCID 60984Methyl bromoacetateHCID 671358342'-Mercapto-6'-methoxydihydrochalcone

Produkt 1

HCID 231035484-Methoxy-2-methoxycarbonyl-3-(2-phenylethyl)benzo[b]thiophene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 2′-mercapto-6′-methoxydihydrochalcone (1.2 g) and triethylamine (0.92 mL) in dichloromethane (10 mL) was added methyl bromoacetate (0.46 mL), and the mixture was stirred at room temperature for 3 hours. The reaction mixture was poured into water, and the resulting mixture was extracted with diethyl ether. The extract was washed with water and brine, and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure, and the residue was dissolved in methanol (15 mL). To the solution was added sodium methoxide (28% methanol solution, 1.7 mL), and the mixture was stirred at room temperature overnight. The crystals precipitated from the reaction mixture were collected by filtration and dried under reduced pressure to give the title compound (1.09 g).

Aufarbeitung

  1. extractionthe resulting mixture was extracted with diethyl ether
  2. washThe extract was washed with water and brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was removed under reduced pressure
  5. dissolutionthe residue was dissolved in methanol (15 mL)
  6. additionTo the solution was added sodium methoxide (28% methanol solution, 1.7 mL)
  7. stirringthe mixture was stirred at room temperature overnight
  8. customThe crystals precipitated from the reaction mixture
  9. filtrationwere collected by filtration
  10. customdried under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-201aafc2a161429aa9fc849cac73612d
Quelldatensatz
uspto-grants-2009_07
Patentnummer
US07566699B2

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