Water → 3-(2-Phenylethoxy)propanoic acid

HRID 265295Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 265295
[Cr](O[Cr]([O-])(=O)=O)([O-])(=O)=O.[NH+]1C=CC=CC=1.[NH+]1C=CC=CC=1.[C:22]1([CH2:28][CH2:29][O:30][CH2:31][CH2:32][CH2:33][OH:34])[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.C1(CC2OCCC[O:43]2)C=CC=CC=1.O>CN(C=O)C>[C:22]1([CH2:28][CH2:29][O:30][CH2:31][CH2:32][C:33]([OH:43])=[O:34])[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1

Komponenten

6

Edukt 4

HCID 962WaterHCID 796012-Benzyl-1,3-dioxaneHCID 2724130Cornforth reagentHCID 190822593-(2-Phenylethoxy)propan-1-ol

Produkt 1

HCID 154386723-(2-Phenylethoxy)propanoic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

Pyridinium dichromate (100 g) was added to a solution of 3-[2-phenylethoxy]-propanol (13.6 g) (prepared from 2-phenylmethyl-1,3-dioxane following the method described in Can. J. Chem., 1974, 52, 888) in DMF (400 ml). The whole was rapidly stirred for 6 hours at which point water was added. This was then extracted with ether (×3). The combined ethereal layers were extracted with 10% aqueous sodium hydroxide solution (500 ml). The basic solution was made acidic pH 1-2 with concentrated hydrochloric acid and extracted with ether. These ethereal extracts were then combined, washed with brine, dried (MgSO4) and evaporated under reduced pressure to yield the subtitled compound (7.6 g).

Aufarbeitung

  1. additionwas added
  2. extractionThis was then extracted with ether (×3)
  3. extractionThe combined ethereal layers were extracted with 10% aqueous sodium hydroxide solution (500 ml)
  4. extractionextracted with ether
  5. washwashed with brine
  6. dry with materialdried (MgSO4)
  7. customevaporated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-37039a6a1e4445688d4429c4128e2b4b
Quelldatensatz
uspto-grants-1997_07
Patentnummer
US05648370

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