Water → HCID 43155822, Verbindung

HRID 446055

Reaktionsgleichung

Reaktionsgleichung von HRID 446055
[CH:1]([C:3]1[O:7][C:6](B(O)O)=[CH:5][CH:4]=1)=[O:2].[I:11][C:12]1[CH:17]=[CH:16][CH:15]=[C:14](I)[CH:13]=1.C(=O)([O-])[O-].[Na+].[Na+].O>COCCOC.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>[I:11][C:12]1[CH:13]=[C:14]([C:6]2[O:7][C:3]([CH:1]=[O:2])=[CH:4][CH:5]=2)[CH:15]=[CH:16][CH:17]=1

Komponenten

7

Edukt 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 12270Benzene, 1,3-diiodo-HCID 27343555-Formylfuran-2-boronic acid

Produkt 1

HCID 43155822HCID 43155822, VerbindungAusbeute 25,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 80711,2-DimethoxyethaneLösungsmittel

Versuchsvorschrift

5-Formyl-2-furanboronic acid (280 mg, 2 mmol) and 1,3-diiodobenzene (660 mg, 2 mmol) were dissolved in 1,2-dimethoxyethane (15 mL), tetrakis(triphenylphosphine)palladium (114 mg, 0.1 mmol) was added thereto, 2 mol/L sodium carbonate (4.6 mL) was then added thereto, and the mixture was heated to reflux for 3 hours while stirring. After the reaction was completed water (20 mL) was added, and extraction with ethyl acetate (20 mL×2) was carried out. The organic layer was washed with saturated brine, water was removed using anhydrous sodium sulfate, the solvent was then removed by evaporation under reduced pressure, and the residue was subjected to silica gel column chromatography using ethyl acetate/hexane (3/7 (volume ratio)) as an eluent, to give 5-(3-iodophenyl)furan-2-carbaldehyde in a yield of 155 mg (yield 25.9%).

Aufarbeitung

  1. temperaturethe mixture was heated
  2. temperatureto reflux for 3 hours
  3. additionwas added
  4. extractionextraction with ethyl acetate (20 mL×2)
  5. washThe organic layer was washed with saturated brine, water
  6. customwas removed
  7. customthe solvent was then removed by evaporation under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-fba0408a89e94c6195eec18ef6c3a1bd
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08476449B2

Verknüpfte Notizen

Wird geladen…