Benzyl Bromide → HCID 20059716, Verbindung

HRID 232383Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 232383
[OH:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([CH2:9][C:10]([OH:12])=[O:11])=[C:4]([CH3:13])[CH:3]=1.[H-].[Na+].[CH2:16](Br)[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1>CN(C)C=O>[CH2:16]([O:1][C:2]1[CH:3]=[C:4]([CH3:13])[C:5]([CH2:9][C:10]([O:12][CH2:13][C:4]2[CH:5]=[CH:6][CH:7]=[CH:2][CH:3]=2)=[O:11])=[C:6]([CH3:8])[CH:7]=1)[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1

Komponenten

5

Edukt 3

HCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 126604274-Hydroxy-2,6-dimethylbenzeneacetic acid

Produkt 1

HCID 20059716HCID 20059716, VerbindungAusbeute 161,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

0.36 g of 2-(4-hydroxy-2,6-dimethylphenyl)acetic acid was treated with 184 mg of a 60% dispersion of sodium hydride in mineral oil and 0.72 g of benzyl bromide in 10 ml of dry dimethylformamide. The solvent was removed by evaporation and the residue was partitioned between water and methylene chloride. The organic layer was evaporated to give 0.63 g of crude product of melting point 54°-57° C. Recrystallization from aqueous methanol gave 0.58 g of pure benzyl 2-(4-benzyloxy-2,6-dimethylphenyl)acetate of melting point 62°-64° C.

Aufarbeitung

  1. customThe solvent was removed by evaporation
  2. customthe residue was partitioned between water and methylene chloride
  3. customThe organic layer was evaporated
  4. customto give 0.63 g of crude product of melting point 54°-57° C
  5. customRecrystallization from aqueous methanol

Quellen und Nachweise

ORD-Eintrag
ord-eb6ec35bee024dd6bbb2a36019ba28cb
Quelldatensatz
uspto-grants-1989_07
Patentnummer
US04851519

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