Dimethylformamide → HCID 57460771, compound

HRID 1674159Notes

Reaction equation

HRID 1674159 reaction equation
[CH2:1]([C:5]1[N:9]([CH2:10][C:11]2[CH:16]=[CH:15][C:14]([C:17]3[C:18]([C:23]#[N:24])=[CH:19][CH:20]=[CH:21][CH:22]=3)=[CH:13][CH:12]=2)[C:8](=[O:25])[NH:7][N:6]=1)[CH2:2][CH2:3][CH3:4].CC(C)([O-])C.[K+].CN(C)C=O.Br[CH2:38][C:39](=[O:44])[C:40]([CH3:43])([CH3:42])[CH3:41]>C(OCC)(=O)C>[CH2:1]([C:5]1[N:9]([CH2:10][C:11]2[CH:16]=[CH:15][C:14]([C:17]3[C:18]([C:23]#[N:24])=[CH:19][CH:20]=[CH:21][CH:22]=3)=[CH:13][CH:12]=2)[C:8](=[O:25])[N:7]([CH2:38][C:39](=[O:44])[C:40]([CH3:43])([CH3:42])[CH3:41])[N:6]=1)[CH2:2][CH2:3][CH3:4]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 21642BromopinacoloneHCID 149510524'-[(3-butyl-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)methyl]biphenyl-2-carbonitrileHCID 23665647Potassium tert-butoxide

Product 1

HCID 57460771HCID 57460771, compoundYield 92%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 4′-[(3-butyl-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl)methyl]biphenyl-2-carbonitrile (0.7 g), potassium tert-butoxide (1.0 M tetrahydrofuran solution, 1.75 mL) and N,N-dimethylformamide (10 mL) was stirred at room temperature for 10 min, 1-bromo-3,3-dimethylbutan-2-one (0.22 mL) was added, and the mixture was stirred at room temperature for 16 hr. The reaction mixture was diluted with ethyl acetate, washed with 5% aqueous potassium hydrogen sulfate solution and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography to give the title compound as a colorless powder (0.58 g, 92%).

Workup

  1. stirringthe mixture was stirred at room temperature for 16 hr
  2. washwashed with 5% aqueous potassium hydrogen sulfate solution
  3. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-ea2d3c35262240ca8c3ec0bb5e1c87bc
Source dataset
uspto-grants-2011_08
Patent number
US07998968B2

Reaction notes

Loading…