Benzyl Bromide → HCID 890054, compound

HRID 920523Notes

Reaction equation

HRID 920523 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:10])[CH3:9])=[C:4]([CH3:11])[CH:3]=1.C([O-])([O-])=O.[K+].[K+].[CH2:18](Br)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>CC(C)=O>[CH2:18]([O:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:10])[CH3:9])=[C:4]([CH3:11])[CH:3]=1)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

5

Reactant 3

HCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 701334-Hydroxy-2-methylacetophenone

Product 1

HCID 890054HCID 890054, compound

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

A mixture of 4′-hydroxy-2′-methylacetophenone (24.88 g; 165.7 mmol)), KI (5.50 g; 33.1 mmol), K2CO3 (34.3 g; 248.5 mmol) and benzyl bromide (21.7 mL; 182.2 mmol) in acetone (200 mL) was stirred overnight at RT. Subsequently the resulting mixture was filtered and partitioned between EtOAc and 5% aqueous NaHCO3. The organic layer was dried (Na2SO4), filtered and concentrated in vacuo to afford 1-(4-benzyloxy-2-methylphenyl)-ethanone, which was used as such.

Workup

  1. filtrationSubsequently the resulting mixture was filtered
  2. custompartitioned between EtOAc and 5% aqueous NaHCO3
  3. dry with materialThe organic layer was dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-17937ccbfb5d4706af6318495c930e05
Source dataset
uspto-grants-2016_03
Patent number
US09273017B2

Reaction notes

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