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Potassium Carbonate → Ethyl 4-[3-[4-[1-(4-isobutylphenyl)hexyloxy]benzoyl]indol-1-yl]butyrate

HRID 1034097
Notes
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Reaction equation

HRID 1034097 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:34]1[CH:39]=[CH:38][C:37]([CH2:40][CH:41]([CH3:43])[CH3:42])=[CH:36][CH:35]=1)[CH2:29][CH2:30][CH2:31][CH2:32][CH3:33].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[CH2:40]([C:37]1[CH:36]=[CH:35][C:34]([CH:28]([O:1][C:2]2[CH:26]=[CH:25][C:5]([C:6]([C:8]3[C:16]4[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=4)[N:10]([CH2:17][CH2:18][CH2:19][C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH:9]=3)=[O:7])=[CH:4][CH:3]=2)[CH2:29][CH2:30][CH2:31][CH2:32][CH3:33])=[CH:39][CH:38]=1)[CH:41]([CH3:43])[CH3:42]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 10871843Ethyl 4-[3-(4-hydroxybenzoyl)indol-1-yl]butyrateHCID 109353641-Bromohexyl-4-isobutylbenzene

Product 1

HCID 10897067Ethyl 4-[3-[4-[1-(4-isobutylphenyl)hexyloxy]benzoyl]indol-1-yl]butyrateYield 98.1%

Reagents, catalysts & solvents 1

HCID 6228
Dimethylformamide
Solvent

Procedure

A mixture of ethyl 4-[3-(4-hydroxybenzoyl)indol-1-yl]butyrate (176 mg), 1-(1-bromohexyl}-4-isobutylbenzene (223 mg) and potassium carbonate (207 mg) in N,N-dimethylformamide (4 ml) was stirred at room temperature for 6 hours. The reaction mixture was filtered and the filtrate was poured into a mixture of ethyl acetate and 0.5N hydrochloric acid. The organic phase was separated, washed with water and brine, dried over magnesium sulfate and evaporated. The residue was chromatographed on silica gel column eluting with a mixture of n-hexane and ethyl acetate (3:1) to give ethyl 4-[3-[4-[1-(4-isobutylphenyl)hexyloxy]benzoyl]indol-1-yl]-butyrate (279 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 phase was separated
  4. washwashed with water and brine
  5. dry with materialdried over magnesium sulfate
  6. customevaporated
  7. customThe residue was chromatographed on silica gel column
  8. washeluting with a mixture of n-hexane and ethyl acetate (3:1)

Sources & evidence

ORD record
ord-7c3abf5dd3c64c9a989030e9f9dab222
Source dataset
uspto-grants-1994_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05312829

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes