Ethyl Acetoacetate → Ethyl 2-{4-[15-(trifluoromethyl)pentadecylamino]benzoyl}acetoacetate

HRID 2058767Notes

Reaction equation

HRID 2058767 reaction equation
[C:1]([O:7][CH2:8][CH3:9])(=[O:6])[CH2:2][C:3]([CH3:5])=[O:4].[H-].[Na+].Cl.[F:13][C:14]([F:41])([F:40])[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][NH:30][C:31]1[CH:39]=[CH:38][C:34]([C:35](Cl)=[O:36])=[CH:33][CH:32]=1>COCCOC>[F:13][C:14]([F:41])([F:40])[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][NH:30][C:31]1[CH:39]=[CH:38][C:34]([C:35]([CH:2]([C:3]([CH3:5])=[O:4])[C:1]([O:7][CH2:8][CH3:9])=[O:6])=[O:36])=[CH:33][CH:32]=1

Participants

5

Reactant 3

HCID 8868Ethyl AcetoacetateHCID 24758Sodium hydrideHCID 205493174-[15-(Trifluoromethyl)pentadecylamino]benzoyl chloride hydrochloride

Product 1

HCID 20549413Ethyl 2-{4-[15-(trifluoromethyl)pentadecylamino]benzoyl}acetoacetate

Reagents, catalysts & solvents 1

HCID 80711,2-DimethoxyethaneSolvent3×

Procedure

A solution of 21.6 g. of ethyl acetoacetate and 10 ml. of 1,2-dimethoxyethane is added to a suspension of 4.0 g. of sodium hydride in 1,2-dimethoxyethane under argon. A solution of 17.3 g. of 4-[15-(trifluoromethyl)pentadecylamino]benzoyl chloride hydrochloride in 1,2-dimethoxyethane is then added. The reaction mixture is refluxed for 5 hours, cooled, poured on ice and extracted with ether. The ether solution is washed with water and saturated sodium chloride solution, dried over anhydrous sodium sulfate and concentrated to dryness. Recrystallization from ether affords the product as a white solid.

Workup

  1. temperatureThe reaction mixture is refluxed for 5 hours
  2. temperaturecooled
  3. additionpoured on ice
  4. extractionextracted with ether
  5. washThe ether solution is washed with water and saturated sodium chloride solution
  6. dry with materialdried over anhydrous sodium sulfate
  7. concentrationconcentrated to dryness
  8. customRecrystallization from ether

Sources & evidence

ORD record
ord-aef223dd389f46439e0f3f05867b0e8d
Source dataset
uspto-grants-1982_03
Patent number
US04318914

Reaction notes

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