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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 480186
Notes
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Reaction equation

HRID 480186 reaction equation
COC(=O)[C:4]1[CH:9]=[C:8]([Cl:10])[CH:7]=[CH:6][C:5]=1[O:11][CH2:12][C:13]([N:15]1[CH2:20][C@H:19]([CH3:21])[N:18]([CH2:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[CH2:17][C@H:16]1[CH3:30])=[O:14].[N+:32](C1C=C(Cl)C=CC=1O)([O-:34])=[O:33].C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CC(=O)CC.O>[Cl:10][C:8]1[CH:7]=[CH:6][C:5]([O:11][CH2:12][C:13]([N:15]2[CH2:20][C@H:19]([CH3:21])[N:18]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=3)[CH2:17][C@H:16]2[CH3:30])=[O:14])=[C:4]([N+:32]([O-:34])=[O:33])[CH:9]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 4875Potassium IodideHCID 69804-Chloro-2-nitrophenolHCID 11430Potassium CarbonateHCID 11487716rel-Methyl 5-chloro-2-[2-[(2R,5S)-4-[(4-fluorophenyl)methyl]-2,5-dimethyl-1-piperazinyl]-2-oxoethoxy]benzoate

Product 1

HCID 444315252-(4-Chloro-2-nitro-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone
Yield 93%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6569Methyl Ethyl KetoneSolvent

Procedure

To a solution of (2R, 5S)-5-chloro-2-{2-[4-(4-fluoro-benzyl)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzoic acid methyl ester (1.0 g, 3.35 mmol) in butanone (35 ml) was added 2-nitro-4-chlorophenol (0.639 g, 3.69 mmol), potassium carbonate (0.925 g, 6.7 mmol) and potassium iodide (0.556 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 combined organics were dried over magnesium sulfate, filtered and concentrated to give an orange oil. Chromatography on silica gel gave the title compound (1.35 g, 93% yield).

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 combined organics were dried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customto give an orange oil

Sources & evidence

ORD record
ord-1089e2043a264e1895e01c690b11c3aa
Source dataset
uspto-grants-2003_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06649611B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes