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Potassium Phosphate, Tribasic → HCID 68507568, Verbindung

HRID 1990896
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1990896
[CH2:1]([O:3][C:4](=[O:15])[C:5]1[CH:10]=[CH:9][C:8](I)=[C:7]([O:12][CH2:13][CH3:14])[CH:6]=1)[CH3:2].[F:16][C:17]1[CH:22]=[CH:21][C:20](B(O)O)=[CH:19][CH:18]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>CN(C=O)C.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[CH2:1]([O:3][C:4]([C:5]1[CH:10]=[CH:9][C:8]([C:20]2[CH:21]=[CH:22][C:17]([F:16])=[CH:18][CH:19]=2)=[C:7]([O:12][CH2:13][CH3:14])[CH:6]=1)=[O:15])[CH3:2]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 62657Potassium Phosphate, TribasicHCID 2856454-Fluorophenylboronic acidHCID 23090718Ethyl 3-ethoxy-4-iodobenzoate

Produkt 1

HCID 68507568HCID 68507568, VerbindungAusbeute 75 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11979704Tetrakis(triphenylphosphine)palladium
Katalysator
HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a solution of 3-ethoxy-4-iodo-benzoic acid ethyl ester (0.76 g, 2.37 mmol, 1.0 equiv; [CAS RN 741699-04-7], prepared according to WO 04/072 016 A1 (Kissei Pharmaceuticals Co, Ltd.)) in anhydrous DMF (12 mL) under Ar was added 4-fluorophenyl boronic acid (0.40 g, 2.85 mmol, 1.2 equiv), K3PO4 (0.86 g, 4.04 mmol, 1.7 equiv) and tetrakis(triphenylphosphine) palladium(0) (82.3 mg, 0.071 mmol, 0.03 equiv) and the reaction mixture stirred at 80° C. for 16 h. The reaction mixture was poured on ice, extracted with ethyl acetate (2×100 mL) and the combined organic phases washed with water (2×100 mL). The organic phase was dried over MgSO4, concentrated by evaporation under reduced pressure and the crude reaction product purified with column chromatography on silica eluting with hexane/ethyl acetate (95:5) to give 0.51 g (75%) of the title compound.

Aufarbeitung

  1. additionThe reaction mixture was poured on ice
  2. extractionextracted with ethyl acetate (2×100 mL)
  3. washthe combined organic phases washed with water (2×100 mL)
  4. dry with materialThe organic phase was dried over MgSO4
  5. concentrationconcentrated by evaporation under reduced pressure
  6. customthe crude reaction product
  7. custompurified with column chromatography on silica eluting with hexane/ethyl acetate (95:5)

Quellen und Nachweise

ORD-Eintrag
ord-5b2e4a4a60404dafb70e6dd6357b4b51
Quelldatensatz
uspto-grants-2010_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07645753B2

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