Water → 3-(2-Methylindol-4-yl)acrylic Acid Methyl Ester

HRID 351645Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 351645
[CH3:1][C:2]1[NH:3][C:4]2[C:9]([C:10]=1OS(O)(=O)=O)=[C:8]([C:16](F)(F)F)[CH:7]=[CH:6][CH:5]=2.[CH3:20][O:21][C:22](=[O:25])[CH:23]=C.C(N(C(C)C)CC)(C)C.O>CN(C)C=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.C(OCC)(=O)C>[CH3:20][O:21][C:22](=[O:25])[CH:23]=[CH:16][C:8]1[CH:7]=[CH:6][CH:5]=[C:4]2[C:9]=1[CH:10]=[C:2]([CH3:1])[NH:3]2

Komponenten

8

Edukt 4

HCID 962WaterHCID 7294Methyl AcrylateHCID 81531DiisopropylethylamineHCID 21974497HCID 21974497, Verbindung

Produkt 1

HCID 695893183-(2-Methylindol-4-yl)acrylic Acid Methyl Ester

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418476HCID 178418476, VerbindungKatalysatorHCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
95 °C

Versuchsvorschrift

To a solution 2-methyl-4-trifluoromethylsulfoxyindole (3.2 g; prepared in Reference Example 2) in N,N-dimethylformamide (50 ml) was added acrylic acid methyl ester (2.24 ml), diisopropylethylamine (5.9 ml) and dichlorobis(triphenylphosphine)palladium(II) (238 mg), and the mixture was stirred at 95° C. for 2 days. To the reaction mixture was added water and ethyl acetate, then separated. The aqueous layer was extracted with ethyl acetate. The combined organic layer was washed with water and a saturated aqueous solution of sodium chloride, successively, dried and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane—ethyl acetate) to give the title compound (950 mg) having the following physical data.

Aufarbeitung

  1. customseparated
  2. extractionThe aqueous layer was extracted with ethyl acetate
  3. washThe combined organic layer was washed with water
  4. dry with materiala saturated aqueous solution of sodium chloride, successively, dried
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by column chromatography on silica gel (hexane—ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-456b150452784242b8c8155b14531d7f
Quelldatensatz
uspto-grants-2004_06
Patentnummer
US06743793B2

Notizen zur Reaktion

Wird geladen…