Cesium carbonate → HCID 69352890, compound

HRID 348341Notes

Reaction equation

HRID 348341 reaction equation
[F:1][C:2]([F:12])([F:11])[O:3][C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[CH:6][CH:5]=1.C([O-])([O-])=O.[Cs+].[Cs+].Br[CH:20]([CH3:26])[C:21]([O:23][CH2:24][CH3:25])=[O:22]>CN(C=O)C>[CH2:24]([O:23][C:21](=[O:22])[CH:20]([O:10][C:7]1[CH:6]=[CH:5][C:4]([O:3][C:2]([F:11])([F:12])[F:1])=[CH:9][CH:8]=1)[CH3:26])[CH3:25]

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 70015p-(Trifluoromethoxy)phenolHCID 79040Ethyl 2-bromopropionate

Product 1

HCID 69352890HCID 69352890, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
90 °C

Procedure

4-Trifluoromethoxyphenol (0.30 mol), Cs2CO3 (197.0 g, 0.61 mol), and ethyl 2-bromopropionate (54.3 g, 0.30 mol) were combined in anhydrous DMF (1000 mL) and stirred at 90° C. under an atmosphere of nitrogen. After 16 h, the DMF was removed in vacuo. The residue was dissolved in ethyl acetate (300 mL) and washed twice with water and once with brine. The organic layer was dried over Na2SO4 and concentrated in vacuo to produce an oil.

Workup

  1. customthe DMF was removed in vacuo
  2. dissolutionThe residue was dissolved in ethyl acetate (300 mL)
  3. washwashed twice with water and once with brine
  4. dry with materialThe organic layer was dried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. customto produce an oil

Sources & evidence

ORD record
ord-6eb9514e442e42838403dff99674d0f1
Source dataset
uspto-grants-2007_02
Patent number
US07176224B2

Reaction notes

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