HCID 59316794, Verbindung → 3-Bromo-4-propan-2-yloxybenzoic acid

HRID 2189745

Reaktionsgleichung

Reaktionsgleichung von HRID 2189745
[Br:1][C:2]1[CH:3]=[C:4]([CH:11]=[CH:12][C:13]=1[O:14][CH:15]([CH3:17])[CH3:16])[C:5]([O:7]C(C)C)=[O:6]>C(O)C.[OH-].[Na+]>[Br:1][C:2]1[CH:3]=[C:4]([CH:11]=[CH:12][C:13]=1[O:14][CH:15]([CH3:17])[CH3:16])[C:5]([OH:7])=[O:6]

Komponenten

4

Edukt 1

HCID 59316794HCID 59316794, Verbindung

Produkt 1

HCID 166412393-Bromo-4-propan-2-yloxybenzoic acidAusbeute 90,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 14798Sodium HydroxideLösungsmittel

Versuchsvorschrift

A solution of 1-methylethyl 3-bromo-4-[(1-methylethyl)oxy]benzoate (D14) (2.36 g, 7.84 mmol) in ethanol (100 mL) and aqueous sodium hydroxide (2M, 39 mL) was heated to reflux for 5 h. The reaction mixture was concentrated in vacuo and partitioned between ethyl acetate (125 mL) and water (125 mL), the latter acidified with 2M HCl (40 mL). The aqueous layer was extracted with further ethyl acetate (70 mL) and the combined organic extracts dried (phase separator) and concentrated in vacuo to give the title compound as an off-white solid (1.83 g, 7.06 mmol). MS (ES): C10H11BrO3 requires 258, 260; found 257, 259 (M−H+).

Aufarbeitung

  1. temperatureto reflux for 5 h
  2. concentrationThe reaction mixture was concentrated in vacuo
  3. custompartitioned between ethyl acetate (125 mL) and water (125 mL)
  4. extractionThe aqueous layer was extracted with further ethyl acetate (70 mL)
  5. customthe combined organic extracts dried (phase separator)
  6. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-23edd38d5d7844e28be7704ea492dfc1
Quelldatensatz
uspto-grants-2012_12
Patentnummer
US08324254B2

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