Sodium hydride → HCID 68048091, compound

HRID 1852438Notes

Reaction equation

HRID 1852438 reaction equation
[OH:1][CH2:2][C:3]([O:5][CH3:6])=[O:4].[H-].[Na+].[Br:9][C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([CH2:16]Br)[CH:11]=1>C1COCC1>[Br:9][C:10]1[CH:11]=[C:12]([CH:13]=[CH:14][CH:15]=1)[CH2:16][O:1][CH2:2][C:3]([O:5][CH3:6])=[O:4]

Participants

5

Conditions

Temperature
0 °C

Procedure

Methyl hydroxyacetate (0.80 g, 8.8 mmol) was dissolved in THF (10 mL) and allowed to stir at 0° C. under a nitrogen atmosphere. NaH (0.40 g, 9.6 mmol, 60% dispersion in oil) was added portionwise over approximately 5 minutes. The cooling bath was removed and the reaction mixture was allowed to warm to ambient temperature. 1-Bromo-3-(bromomethyl)benzene (2.0 g, 8.0 mmol) was added in a single portion and the resulting mixture was heated to 40° C. After 4 hours, the reaction mixture was allowed to cool to ambient temperature and partitioned between water and EtOAc. The layers were separated, and the organic layer was washed with saturated aqueous NaHCO3, brine, dried over anhydrous Na2SO4, filtered, and concentrated in vacuo to afford the title compound, which was carried forward without further purification. 1H NMR (600 MHz, CDCl3): δ 7.53-7.50 (m, 1H), 7.42-7.38 (m, 1H), 7.30-7.17 (m, 2H), 4.57 (s, 2H), 4.09 (s, 2H), 3.74 (s, 3H).

Workup

  1. customThe cooling bath was removed
  2. temperatureto warm to ambient temperature
  3. temperaturethe resulting mixture was heated to 40° C
  4. temperatureto cool to ambient temperature
  5. custompartitioned between water and EtOAc
  6. customThe layers were separated
  7. washthe organic layer was washed with saturated aqueous NaHCO3, brine
  8. dry with materialdried over anhydrous Na2SO4
  9. filtrationfiltered
  10. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-847e4d1a2f144a92bc18dfcd234de04e
Source dataset
uspto-grants-2015_02
Patent number
US08962608B2

Reaction notes

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