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Potassium Iodide → 2-(4-Chloro-2-nitro-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone

HRID 11632
Notes
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Reaction equation

HRID 11632 reaction equation
Cl[CH2:2][C:3]([N:5]1[CH2:10][C@H:9]([CH3:11])[N:8]([CH2:12][C:13]2[CH:18]=[CH:17][C:16]([F:19])=[CH:15][CH:14]=2)[CH2:7][C@H:6]1[CH3:20])=[O:4].[N+:21]([C:24]1[CH:29]=[C:28]([Cl:30])[CH:27]=[CH:26][C:25]=1[OH:31])([O-:23])=[O:22].C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CC(=O)CC.O>[Cl:30][C:28]1[CH:27]=[CH:26][C:25]([O:31][CH2:2][C:3]([N:5]2[CH2:10][C@H:9]([CH3:11])[N:8]([CH2:12][C:13]3[CH:18]=[CH:17][C:16]([F:19])=[CH:15][CH:14]=3)[CH2:7][C@H:6]2[CH3:20])=[O:4])=[C:24]([N+:21]([O-:23])=[O:22])[CH:29]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 4875Potassium IodideHCID 69804-Chloro-2-nitrophenolHCID 11430Potassium CarbonateHCID 113584612-Chloro-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone

Product 1

HCID 444315252-(4-Chloro-2-nitro-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanoneYield 92.5%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6569Methyl Ethyl KetoneSolvent

Procedure

To a solution of 2-chloro-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone (1.0 g, 3.35 mmol) in butanone (35 mL) was added 2-nitro-4-chlorophenol (0.64 g, 3.69 mmol), potassium carbonate (0.93 g, 6.7mmol) and potassium iodide (0.56 g, 3.35 mmol). The reaction mixture was heated at reflux overnight. The reaction mixture was then cooled, diluted with water and extracted with ethyl acetate. The organic layer was dried over magnesium sulfate, filtered and concentrated to give an orange oil. Chromatography on silica gel gave the title compound (1.35 g).

Workup

  1. temperatureThe reaction mixture was heated
  2. temperatureat reflux overnight
  3. temperatureThe reaction mixture was then cooled
  4. extractionextracted with ethyl acetate
  5. dry with materialThe organic layer was dried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customto give an orange oil

Sources & evidence

ORD record
ord-25061445411d408e8604d629580259c9
Source dataset
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07098212B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes