Sodium Hydroxide → 3-(4-Methoxy-2-phenoxy-phenylamino)-phthalic acid

HRID 448386Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 448386
C[O:2][C:3](=[O:30])[C:4]1[C:5](=[C:10]([NH:14][C:15]2[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][C:16]=2[O:23][C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH:11]=[CH:12][CH:13]=1)[C:6]([O:8]C)=[O:7].[OH-].[Na+]>C(O)C>[CH3:22][O:21][C:18]1[CH:19]=[CH:20][C:15]([NH:14][C:10]2[CH:11]=[CH:12][CH:13]=[C:4]([C:3]([OH:30])=[O:2])[C:5]=2[C:6]([OH:8])=[O:7])=[C:16]([O:23][C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH:17]=1

Komponenten

4

Edukt 2

HCID 14798Sodium HydroxideHCID 583071863-(4-Methoxy-2-phenoxy-phenylamino)-phthalic acid dimethyl ester

Produkt 1

HCID 583071663-(4-Methoxy-2-phenoxy-phenylamino)-phthalic acidAusbeute 93 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

A mixture of 3-(4-methoxy-2-phenoxy-phenylamino)-phthalic acid dimethyl ester (0.80 g, 2.0 mmol) and 3N NaOH (50 mL) in ethanol (100 mL) was heated to reflux for 90 minutes. The mixture was cooled, and the solvent was removed under vacuum. The residue was dissolved in water (100 mL), washed with CH2Cl2 (2×100 mL), and acidified (HCl). The resulting mixture was extracted with ethyl acetate (4×50 mL) and the combined extracts were washed with water (3×100 mL), dried (MgSO4) and evaporated, providing 0.69 g, in 93% yield; 1H NMR (DMSO-d6) δ 3.71 (s, 3H), 6.58 (d, J=2.7, 1H), 6.80 (dd, J=8.8 Hz, J=2.7 Hz, 1H), 6.88-6.94 (m, 3H), 7.03-7.10 (m, 2H), 7.27-7.36 (m, 4H), 8.07 (s, 1H).

Aufarbeitung

  1. temperaturewas heated
  2. temperatureto reflux for 90 minutes
  3. temperatureThe mixture was cooled
  4. customthe solvent was removed under vacuum
  5. dissolutionThe residue was dissolved in water (100 mL)
  6. washwashed with CH2Cl2 (2×100 mL)
  7. extractionThe resulting mixture was extracted with ethyl acetate (4×50 mL)
  8. washthe combined extracts were washed with water (3×100 mL)
  9. dry with materialdried (MgSO4)
  10. customevaporated
  11. customproviding 0.69 g

Quellen und Nachweise

ORD-Eintrag
ord-adc9ca98ec0842dab968953a8460d4b9
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08481568B2

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