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Ethanol → 1-(4-(3-(4-Fluoro-phenyl)cinnamoylamino)benzyl)piperidine

HRID 565919
Notes
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Reaction equation

HRID 565919 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH:23]=[CH:24][CH:25]=1)[CH:5]=[CH:6][C:7]([NH:9][C:10]1[CH:22]=[CH:21][C:13]([CH2:14][N:15]2[CH2:20][CH2:19][CH2:18][CH2:17][CH2:16]2)=[CH:12][CH:11]=1)=[O:8].B([O-])([O-])O[C:28]1[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=1.C(=O)([O-])[O-].[K+].[K+].C(O)C>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:34][C:31]1[CH:32]=[CH:33][C:28]([C:2]2[CH:3]=[C:4]([CH:23]=[CH:24][CH:25]=2)[CH:5]=[CH:6][C:7]([NH:9][C:10]2[CH:22]=[CH:21][C:13]([CH2:14][N:15]3[CH2:20][CH2:19][CH2:18][CH2:17][CH2:16]3)=[CH:12][CH:11]=2)=[O:8])=[CH:29][CH:30]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 702EthanolHCID 11430Potassium CarbonateHCID 539077661-(4-(3-Bromocinnamoylamino)benzyl)piperidineHCID 867561584-Fluorophenyl borate

Product 1

HCID 539677711-(4-(3-(4-Fluoro-phenyl)cinnamoylamino)benzyl)piperidineYield 92.8%

Reagents, catalysts & solvents 2

HCID 178418397
HCID 178418397, compound
Catalyst
HCID 1140TolueneSolvent

Procedure

A suspension of 1-(4-(3-bromocinnamoylamino)-benzyl)piperidine (0.4g), 4-fluorophenyl borate (0.14g), 1 M potassium carbonate (2ml) and ethanol (1ml) in toluene (5ml) was stirred under argon atmosphere at room temperature for 30 minutes. To the suspension was added tetrakistriphenylphosphinepalladium (0.05g), and the mixture was refluxed over night. The mixture was extracted with ethyl acetate, and the organic layer was washed with water and saturated sodium chloride solution, and dried with anhydrous magnesium sulfate. Under reduced pressure, the solvent was evaporated, and the residue was purified with silica gel column (methanol/triethylamine/ethyl acetate) to give crude crystals, which were recrystallized from ethyl acetate-hexane to give 1-(4-(3-(4-fluoro-phenyl)cinnamoylamino)benzyl)piperidine (Compound 83) (0.35g) as colorless crystals.

Workup

  1. temperaturethe mixture was refluxed over night
  2. extractionThe mixture was extracted with ethyl acetate
  3. washthe organic layer was washed with water and saturated sodium chloride solution
  4. dry with materialdried with anhydrous magnesium sulfate
  5. customUnder reduced pressure, the solvent was evaporated
  6. customthe residue was purified with silica gel column (methanol/triethylamine/ethyl acetate)
  7. customto give crude crystals, which
  8. customwere recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-440c896d5886420cb73abd4708602613
Source dataset
uspto-grants-2001_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06172061B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes