Potassium Carbonate → HCID 19024816, compound

HRID 249172Notes

Reaction equation

HRID 249172 reaction equation
[OH:1][C:2]1[CH:26]=[CH:25][C:5]([C:6]([C:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]([CH2:17][CH2:18][CH2:19][C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH:9]=2)=[O:7])=[CH:4][CH:3]=1.Br[CH:28]([C:33]1[CH:38]=[CH:37][C:36]([CH2:39][CH:40]([CH3:42])[CH3:41])=[CH:35][CH:34]=1)[C:29]([CH3:32])([CH3:31])[CH3:30].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[CH3:30][C:29]([CH3:31])([CH3:32])[CH:28]([C:33]1[CH:34]=[CH:35][C:36]([CH2:39][CH:40]([CH3:41])[CH3:42])=[CH:37][CH:38]=1)[O:1][C:2]1[CH:26]=[CH:25][C:5]([C:6]([C:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]([CH2:17][CH2:18][CH2:19][C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH:9]=2)=[O:7])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 10871843Ethyl 4-[3-(4-hydroxybenzoyl)indol-1-yl]butyrateHCID 19024800HCID 19024800, compound

Product 1

HCID 19024816HCID 19024816, compoundYield 47.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of ethyl 4-[3-(4-hydroxybenzoyl)indol-1-yl]butyrate (0.50 g), 1-bromo-2,2-dimethyl-1-(4isobutylphenyl)propane (0.74 g) and potassium carbonate (0.59 g) in N,N-dimethylformamide (10 ml) was stirred at 60° C. for 20 hours. The reaction mixture was filtered, and the filtrate was poured into a mixture of ethyl acetate and 0.5N hydrochloric acid. The organic layer was separated, washed with water, and dried over magnesium sulfate. After evaporation of the solvent, the residue was purified by column chromatography on silica gel eluting a mixture of n-hexane and ethyl acetate (5:1) to give ethyl 4-[3-[4-[2,2-dimethyl-1-(4-isobutylphenyl)propyloxy]benzoyl]indol-1-yl]butyrate (376 mg) as an oil.

Workup

  1. filtrationThe reaction mixture was filtered
  2. additionthe filtrate was poured into a mixture of ethyl acetate and 0.5N hydrochloric acid
  3. customThe organic layer was separated
  4. washwashed with water
  5. dry with materialdried over magnesium sulfate
  6. customAfter evaporation of the solvent
  7. customthe residue was purified by column chromatography on silica gel eluting
  8. additiona mixture of n-hexane and ethyl acetate (5:1)

Sources & evidence

ORD record
ord-03708194ed0c4ec49294dd4063a6f255
Source dataset
uspto-grants-1993_05
Patent number
US05212320

Reaction notes

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