Water → HCID 58355456, compound

HRID 1509591Notes

Reaction equation

HRID 1509591 reaction equation
[C:1]1([C:7]2[NH:11][C:10]([C:12]([O:14][CH2:15][CH3:16])=[O:13])=[CH:9][CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CS(O[CH2:22][CH2:23][CH2:24][CH2:25][O:26][CH3:27])(=O)=O.C(=O)([O-])[O-].[Cs+].[Cs+].O>CN(C=O)C>[CH3:27][O:26][CH2:25][CH2:24][CH2:23][CH2:22][N:11]1[C:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)=[CH:8][CH:9]=[C:10]1[C:12]([O:14][CH2:15][CH3:16])=[O:13]

Participants

6

Reactant 4

HCID 962WaterHCID 10796Cesium carbonateHCID 116870064-Methoxybutyl methanesulfonateHCID 12378033Ethyl 5-phenyl-1H-pyrrole-2-carboxylate

Product 1

HCID 58355456HCID 58355456, compoundYield 76.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

Ethyl 5-phenyl-1H-pyrrole-2-carboxylate (400 mg) and 4-methoxybutyl methanesulfonate (440 mg) were dissolved in DMF (10 ml), cesium carbonate (780 mg) was added and the mixture was stirred at 60° C. for 12 hr. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The extract was washed with brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to silica gel column chromatography, and a fraction eluted with ethyl acetate-hexane (1:9-1:4) was concentrated under reduced pressure to give the object product (430 mg).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. washa fraction eluted with ethyl acetate-hexane (1:9-1:4)
  6. concentrationwas concentrated under reduced pressure

Sources & evidence

ORD record
ord-815830ab82674ea18cc9a1ba2366c7a9
Source dataset
uspto-grants-2015_12
Patent number
US09221836B2

Reaction notes

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