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

HRID 1387850Notes

Reaction equation

HRID 1387850 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

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 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

A suspension of 1-(4-(3-bromocinnamoylamino)-benzyl)piperidine (0.4 g), 4-fluorophenyl borate (0.14 g), 1M potassium carbonate (2 ml) and ethanol (1 ml) in toluene (5 ml) was stirred under argon atmosphere at room temperature for 30 minutes. To the suspension was added tetrakistriphenylphosphinepalladium (0.05 g), 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) (0.35 g) 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-40afed8c837d4106b8e390e8e3219135
Source dataset
uspto-grants-2001_07
Patent number
US06268354B1

Reaction notes

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