Hydrochloric Acid → Ethyl 2-[(2'-cyano-2-fluorobiphenyl-4-yl)methyl]-3-oxohexanoate

HRID 519664Notes

Reaction equation

HRID 519664 reaction equation
[H-].[Na+].[O:3]=[C:4]([CH2:11][CH2:12][CH3:13])[CH2:5][C:6]([O:8][CH2:9][CH3:10])=[O:7].Br[CH2:15][C:16]1[CH:21]=[CH:20][C:19]([C:22]2[C:23]([C:28]#[N:29])=[CH:24][CH:25]=[CH:26][CH:27]=2)=[C:18]([F:30])[CH:17]=1.Cl>O1CCCC1>[C:28]([C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=1[C:19]1[CH:20]=[CH:21][C:16]([CH2:15][CH:5]([C:4](=[O:3])[CH2:11][CH2:12][CH3:13])[C:6]([O:8][CH2:9][CH3:10])=[O:7])=[CH:17][C:18]=1[F:30])#[N:29]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 238498Ethyl 3-oxohexanoateHCID 670084324'-(Bromomethyl)-2'-fluorobiphenyl-2-carbonitrile

Product 1

HCID 67009623Ethyl 2-[(2'-cyano-2-fluorobiphenyl-4-yl)methyl]-3-oxohexanoateYield 101.9%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension (200 mL) of 60% sodium hydride (1.8 g) in tetrahydrofuran was added dropwise a solution (50 mL) of ethyl 3-oxohexanoate (10.9 g) in tetrahydrofuran at 0° C. The mixture was stirred at the same temperature for 30 min, 4′-(bromomethyl)-2′-fluorobiphenyl-2-carbonitrile (10.0 g) was added, and the mixture was stirred at room temperature for 16 hr. The reaction mixture was poured into 1 N hydrochloric acid, and the mixture was extracted with ethyl acetate. The obtained ethyl acetate layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow oil (12.9 g, 100%).

Workup

  1. stirringthe mixture was stirred at room temperature for 16 hr
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe obtained ethyl acetate layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-81ecf3b3c1744bc2a304afca40803942
Source dataset
uspto-grants-2015_08
Patent number
US09115136B2

Reaction notes

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