3-{4-[3-(5,5-Dimethyl-3-trifluoromethyl-4,5,6,7-tetrahydro-benzo[c]thiophen-1-yl)-3-oxo-propenyl]-2-ethyl-6-methyl-phenyl}-acrylic acid ethyl ester → 3-{4-[3-(5,5-Dimethyl-3-trifluoromethyl-4,5,6,7-tetrahydro-benzo[c]thiophen-1-yl)-3-oxo-propyl]-2-ethyl-6-methyl-phenyl}-propionic acid ethyl ester

HRID 1665958Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1665958
[CH2:1]([O:3][C:4](=[O:35])[CH:5]=[CH:6][C:7]1[C:12]([CH3:13])=[CH:11][C:10]([CH:14]=[CH:15][C:16]([C:18]2[S:19][C:20]([C:29]([F:32])([F:31])[F:30])=[C:21]3[CH2:26][C:25]([CH3:28])([CH3:27])[CH2:24][CH2:23][C:22]=23)=[O:17])=[CH:9][C:8]=1[CH2:33][CH3:34])[CH3:2]>C(O)C.[Pd]>[CH2:1]([O:3][C:4](=[O:35])[CH2:5][CH2:6][C:7]1[C:12]([CH3:13])=[CH:11][C:10]([CH2:14][CH2:15][C:16]([C:18]2[S:19][C:20]([C:29]([F:30])([F:31])[F:32])=[C:21]3[CH2:26][C:25]([CH3:27])([CH3:28])[CH2:24][CH2:23][C:22]=23)=[O:17])=[CH:9][C:8]=1[CH2:33][CH3:34])[CH3:2]

Komponenten

4

Edukt 1

HCID 671883473-{4-[3-(5,5-Dimethyl-3-trifluoromethyl-4,5,6,7-tetrahydro-benzo[c]thiophen-1-yl)-3-oxo-propenyl]-2-ethyl-6-methyl-phenyl}-acrylic acid ethyl ester

Produkt 1

HCID 575089143-{4-[3-(5,5-Dimethyl-3-trifluoromethyl-4,5,6,7-tetrahydro-benzo[c]thiophen-1-yl)-3-oxo-propyl]-2-ethyl-6-methyl-phenyl}-propionic acid ethyl ester

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 702EthanolLösungsmittel2×

Reaktionsbedingungen

Temperatur
65 °C

Versuchsvorschrift

To a solution of 3-{4-[3-(5,5-dimethyl-3-trifluoromethyl-4,5,6,7-tetrahydro-benzo[c]thiophen-1-yl)-3-oxo-propenyl]-2-ethyl-6-methyl-phenyl}-acrylic acid ethyl ester (630 mg, 1.25 mmol) in ethanol (25 mL), a suspension of Pd/C (400 mg, 10% Pd) in ethanol (15 mL) is added and the resulting slurry is stirred at 65° C. for 16 h under 8 bar of H2. The catalyst is filtered off and the solvent of the filtrate is evaporated. The residue is separated by CC on silica gel eluting with heptane:EA 4:1 to give 3-{4-[3-(5,5-dimethyl-3-trifluoromethyl-4,5,6,7-tetrahydro-benzo[c]thiophen-1-yl)-3-oxo-propyl]-2-ethyl-6-methyl-phenyl}-propionic acid ethyl ester (340 mg, contains traces of the corresponding isopropyl ester) as a colourless oil; LC-MS: tR=1.28 min, [M+1]=509.49.

Aufarbeitung

  1. additionis added
  2. filtrationThe catalyst is filtered off
  3. customthe solvent of the filtrate is evaporated
  4. customThe residue is separated by CC on silica gel eluting with heptane:EA 4:1

Quellen und Nachweise

ORD-Eintrag
ord-dabe252565644c8eaa757aa21c1575f9
Quelldatensatz
uspto-grants-2011_10
Patentnummer
US08039644B2

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