Hydrochloric Acid → HCID 21947830, Verbindung

HRID 2184469Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2184469
I[C:2]1[C:10]([Cl:11])=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[C:4]([O:12][CH3:13])[CH:3]=1.[CH2:14]([O:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1B(O)O)[CH3:15].C(=O)([O-])[O-].[K+].[K+].Cl>CN(C)C=O.[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>[Cl:11][C:10]1[CH:9]=[C:5]([C:6]([OH:8])=[O:7])[C:4]([O:12][CH3:13])=[CH:3][C:2]=1[C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][C:17]=1[O:16][CH2:14][CH3:15]

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 11430Potassium CarbonateHCID 2734902(2-Ethoxyphenyl)boronic acidHCID 167918585-Chloro-4-iodo-2-methoxybenzoic acid

Produkt 1

HCID 21947830HCID 21947830, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumKatalysatorHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a stirred solution of 4-iodo-5-chloro-2-methoxy benzoic acid of Example 15, Step A (0.500 g, 1.6 mmol) in N,N-dimethylformamide (30 mL) was added 2-ethoxy phenyl boronic acid (0.8 g, 4.8 mmol) and potassium carbonate (2.04 g, 14.7 mmol). This mixture was purged with nitrogen and then treated with a catalytic amount of tetrakis(triphenylphosphine) palladium(0) (0.093 g, 0.08 mmol). The reaction was heated to reflux overnight, cooled, acidified with 2 N hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered, and evaporated to yield the title acid which was used in the next step without further purification.

Aufarbeitung

  1. customThis mixture was purged with nitrogen
  2. temperatureThe reaction was heated
  3. temperatureto reflux overnight
  4. temperaturecooled
  5. extractionextracted with ethyl acetate
  6. washThe organic layer was washed with brine
  7. dry with materialdried over anhydrous magnesium sulfate
  8. filtrationfiltered
  9. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-26c4be78700049bfbcb2b8bcec467109
Quelldatensatz
uspto-grants-2005_05
Patentnummer
US06900200B2

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