Water → 3-Cyclohexyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

HRID 497855Notes

Reaction equation

HRID 497855 reaction equation
Br[C:2]1[C:3](=[O:20])[N:4]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH:5]=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][N:9]=2)[CH:7]=1.[CH:21]1([Mg]Cl)[CH2:26][CH2:25][CH2:24][CH2:23][CH2:22]1.O>O1CCCC1.Cl[Ni]1(Cl)[P](C2C=CC=CC=2)(C2C=CC=CC=2)CCC[P]1(C1C=CC=CC=1)C1C=CC=CC=1>[CH:21]1([C:2]2[C:3](=[O:20])[N:4]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH:5]=[C:6]([C:8]3[CH:13]=[CH:12][CH:11]=[CH:10][N:9]=3)[CH:7]=2)[CH2:26][CH2:25][CH2:24][CH2:23][CH2:22]1

Participants

6

Reactant 3

HCID 962WaterHCID 223190653-Bromo-1-phenyl-5-(pyridin-2-yl)-1,2-dihydropyridin-2-oneHCID 178478990HCID 178478990, compound

Product 1

HCID 223192163-Cyclohexyl-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one

Reagents, catalysts & solvents 2

HCID 178418745HCID 178418745, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

34 mg of 3-bromo-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one was dissolved in 10 ml of tetrahydrofuran, followed by adding 1 mg of [1,3-bis (diphenylphosphino)propane]nickel(II) chloride. Under stirring in nitrogen atmosphere, 0.1 ml of cyclohexyl magnesium chloride (2.0M ether solution) was added dropwise thereinto. The mixture was stirred at room temperature in nitrogen atmosphere for 1 hour, followed by heating under reflux for 72 hours. After cooling to room temperature, water was added thereto, followed by extracting with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated, and the residue was purified by silica gel chromatography (chloroform/methanol system), to give 5 mg of the title compound.

Workup

  1. additionwas added dropwise
  2. temperatureby heating
  3. temperatureunder reflux for 72 hours
  4. temperatureAfter cooling to room temperature
  5. extractionby extracting with ethyl acetate
  6. washThe organic layer was washed with brine
  7. dry with materialdried over anhydrous magnesium sulfate
  8. customThe solvent was evaporated
  9. customthe residue was purified by silica gel chromatography (chloroform/methanol system)

Sources & evidence

ORD record
ord-8834a981c0374bb6bed1342c293db7fb
Source dataset
uspto-grants-2005_09
Patent number
US06949571B2

Reaction notes

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