Bromine → HCID 21990092, compound

HRID 2386093Notes

Reaction equation

HRID 2386093 reaction equation
[OH:1][C:2]1[CH:7]=[C:6]([O:8][CH3:9])[C:5]([CH2:10][CH2:11][OH:12])=[CH:4][C:3]=1[C:13](=[O:15])[CH3:14].[Br:16]Br>C(Cl)Cl>[Br:16][CH2:14][C:13]([C:3]1[CH:4]=[C:5]([CH2:10][CH2:11][OH:12])[C:6]([O:8][CH3:9])=[CH:7][C:2]=1[OH:1])=[O:15]

Participants

4

Reactant 2

HCID 24408BromineHCID 21990138HCID 21990138, compound

Product 1

HCID 21990092HCID 21990092, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In 100 mL of methylene chloride was dissolved 10.0 g of 1-[2-hydroxy-5-(2-hydroxyethyl)-4-methoxyphenyl]-1-ethanone, and 2.94 mL of bromine was added dropwise to the solution, after which the resulting mixture was stirred at room temperature for 1 hour. The reaction mixture was poured into ice water and the organic layer was separated. The organic layer was washed with water and then a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to obtain 16.4 g of 2-bromo-1-[2-hydroxy-5-(2-hydroxyethyl)-4-methoxyphenyl]-1-ethanone as a yellow oil.

Workup

  1. additionwas added dropwise to the solution
  2. customthe organic layer was separated
  3. washThe organic layer was washed with water
  4. dry with materiala saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate
  5. distillationThe solvent was distilled off under reduced pressure

Sources & evidence

ORD record
ord-c1d699cb3a9d48ae873fa8320ba6f581
Source dataset
uspto-grants-2012_09
Patent number
USRE043676E1

Reaction notes

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