Water → 2-(Methoxymethyl)-2'-methylbiphenyl-4-carboxylic acid

HRID 400742Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 400742
[CH3:1][O:2][CH2:3][C:4]1[CH:9]=[C:8]([C:10]([O:12]C)=[O:11])[CH:7]=[CH:6][C:5]=1[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[CH3:20].[OH-].[Na+].O>CCO>[CH3:1][O:2][CH2:3][C:4]1[CH:9]=[C:8]([C:10]([OH:12])=[O:11])[CH:7]=[CH:6][C:5]=1[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[CH3:20]

Komponenten

5

Edukt 3

HCID 962WaterHCID 14798Sodium HydroxideHCID 58554139Methyl 2-(methoxymethyl)-2'-methyl-[1,1'-biphenyl]-4-carboxylate

Produkt 1

HCID 594958222-(Methoxymethyl)-2'-methylbiphenyl-4-carboxylic acidAusbeute 92,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

To a solution of methyl 2-(methoxymethyl)-2′-methylbiphenyl-4-carboxylate obtained in step 3 (40 g; 147.97 mmol) in EtOH (1200 mL) was added NaOH (88.78 mL; 5 M; 443.90 mmol) after which the mixture was heated at 60° C. for one hour. Reaction mixture was cooled to room temperature and concentrated under vacuum to give a yellow solid. Water was added and the aqueous phase was washed with EtOAc. The aqueous phase was then acidified with HCl (1 M) and extracted with EtOAc to give the title compound as a yellow solid (35.1 g, 92%). 1H NMR (DMSO-d6) δ 12.99 (br s, 1H), 8.09 (s, 1H), 7.92-7.89 (m, 1H), 7.33-7.22 (m, 4H), 7.10-7.08 (m, 1H), 4.11 (m, 2H), 3.18 (s, 3H), 1.99 (s, 3H). HPLC (Method A) Rt 4.52 min (Purity: 96.4%). LC/MS (Method B): 255.2 (M−H)−.

Aufarbeitung

  1. customReaction mixture
  2. temperaturewas cooled to room temperature
  3. concentrationconcentrated under vacuum
  4. customto give a yellow solid
  5. washthe aqueous phase was washed with EtOAc
  6. extractionextracted with EtOAc

Quellen und Nachweise

ORD-Eintrag
ord-6395ceaf6725416c83ae6143f3a7a53d
Quelldatensatz
uspto-grants-2014_06
Patentnummer
US08741923B2

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