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Potassium Carbonate → Methyl 7-(4-chlorophenyl)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate

HRID 1978572
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1978572
Br[C:2]1[CH:3]=[CH:4][C:5]2[S:11](=[O:13])(=[O:12])[CH2:10][CH2:9][C:8]([C:14]([O:16][CH3:17])=[O:15])=[CH:7][C:6]=2[CH:18]=1.B([O-])([O-])O[C:21]1[CH:26]=[CH:25][C:24]([Cl:27])=[CH:23][CH:22]=1.C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1.C(O)C.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>[Cl:27][C:24]1[CH:25]=[CH:26][C:21]([C:2]2[CH:3]=[CH:4][C:5]3[S:11](=[O:13])(=[O:12])[CH2:10][CH2:9][C:8]([C:14]([O:16][CH3:17])=[O:15])=[CH:7][C:6]=3[CH:18]=2)=[CH:22][CH:23]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 21995732Methyl 7-bromo-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylateHCID 867561664-Chlorophenyl borate

Produkt 1

HCID 21995682Methyl 7-(4-chlorophenyl)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylateAusbeute 60,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397
HCID 178418397, Verbindung
Katalysator
HCID 86587398Ethanol toluene waterLösungsmittel

Versuchsvorschrift

Under argon atmosphere, methyl 7-bromo-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate (0.70 g), a mixture of 4-chlorophenyl borate (0.38 g) and potassium carbonate (0.59 g) in toluene/ethanol/water (20/2/2 ml) was stirred at room temperature for 1 hour. To the mixture was added tetrakistriphenylphosphinepalladium (0.12 g), and the mixture was refluxed for 20 hours, cooled, extracted with ethyl acetate, washed with saturated brine, dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified with column chromatography (ethyl acetate/hexane=1:1) and recrystallized from ethyl acetate/hexane to give to give pale yellow crystals of methyl 7-(4-chlorophenyl)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate (466 mg).

Aufarbeitung

  1. temperaturethe mixture was refluxed for 20 hours
  2. temperaturecooled
  3. extractionextracted with ethyl acetate
  4. washwashed with saturated brine
  5. dry with materialdried with magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified with column chromatography (ethyl acetate/hexane=1:1)
  8. customrecrystallized from ethyl acetate/hexane
  9. customto give

Quellen und Nachweise

ORD-Eintrag
ord-0fe75ca1246f494ead7e2afd10aabb63
Quelldatensatz
uspto-grants-2001_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06235771B1

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