Ethyl benzoylacetate → N-[4-[1-(1H-imidazol-1-yl)-2-methylpropyl]-2-nitrophenyl]-beta-oxobenzenepropanamide

HRID 1086204Notes

Reaction equation

HRID 1086204 reaction equation
[N:1]1([CH:6]([C:10]2[CH:15]=[CH:14][C:13]([NH2:16])=[C:12]([N+:17]([O-:19])=[O:18])[CH:11]=2)[CH:7]([CH3:9])[CH3:8])[CH:5]=[CH:4][N:3]=[CH:2]1.[O:20]=[C:21]([C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)[CH2:22][C:23](OCC)=[O:24]>C1C=CC=CC=1>[N:1]1([CH:6]([C:10]2[CH:15]=[CH:14][C:13]([NH:16][C:23](=[O:24])[CH2:22][C:21](=[O:20])[C:28]3[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=3)=[C:12]([N+:17]([O-:19])=[O:18])[CH:11]=2)[CH:7]([CH3:9])[CH3:8])[CH:5]=[CH:4][N:3]=[CH:2]1

Participants

4

Reactant 2

HCID 7170Ethyl benzoylacetateHCID 145184254-[1-(1H-imidazol-1-yl)-2-methylpropyl]-2-nitrobenzenamine

Product 1

HCID 19875839N-[4-[1-(1H-imidazol-1-yl)-2-methylpropyl]-2-nitrophenyl]-beta-oxobenzenepropanamideYield 44.8%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

A solution of 10 parts of 4-[1-(1H-imidazol-1-yl)-2-methylpropyl]-2-nitrobenzenamine, 20 parts of ethyl β-oxobenzenepropanoate and 174 parts of benzene was stirred for 36 hours at reflux temperature. After cooling, the reaction mixture was evaporated. The residue was purified by column chromatography over silica gel using a mixture of dichloromethane and methanol (98:2 by volume) as eluent. The pure fractions were collected and the eluent was evaporated, yielding 7 parts (44.8%) of N-[4-[1-(1H-imidazol-1-yl)-2-methylpropyl]-2-nitrophenyl]-β-oxobenzenepropanamide; mp. 106° C. (interm. 96).

Workup

  1. temperatureat reflux temperature
  2. temperatureAfter cooling
  3. customthe reaction mixture was evaporated
  4. customThe residue was purified by column chromatography over silica gel using
  5. additiona mixture of dichloromethane and methanol (98:2 by volume) as eluent
  6. customThe pure fractions were collected
  7. customthe eluent was evaporated

Sources & evidence

ORD record
ord-5f27e63692d14e4ba3d5b2cf13926a8a
Source dataset
uspto-grants-1991_07
Patent number
US05028606

Reaction notes

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