Sodium Acetate → HCID 60028532, compound

HRID 2404874Notes

Reaction equation

HRID 2404874 reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([NH:10][C:11](=[O:17])[CH2:12][CH2:13][C:14]([OH:16])=O)=[CH:6][C:5]=1[C:18]([F:21])([F:20])[F:19])([O-:3])=[O:2].CC([O-])=O.[Na+]>C(OC(=O)C)(=O)C.O>[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([N:10]2[C:11](=[O:17])[CH2:12][CH2:13][C:14]2=[O:16])=[CH:6][C:5]=1[C:18]([F:21])([F:20])[F:19])([O-:3])=[O:2]

Participants

5

Reactant 2

HCID 517045Sodium AcetateHCID 59410119HCID 59410119, compound

Product 1

HCID 60028532HCID 60028532, compoundYield 39%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 7918Acetic AnhydrideSolvent

Procedure

A solution of 4-(4-nitro-3-(trifluoromethyl)phenylamino)-4-oxobutanoic acid (1.1 g, 3.6 mmol) and NaOAc (1.62 g, 19.75 mmol) in acetic anhydride (15 mL) was stirred overnight at 80° C. The reaction mixture was diluted with water and extracted twice with dichloromethane. The organic layers were combined and washed with NaOH (1 N) until pH was 9. The organic layer was separated, dried with MgSO4, filtered and concentrated in vacuo to provide 1-(4-nitro-3-(trifluoromethyl)phenyl)pyrrolidine-2,5-dione (0.4 g, 39%). LC/MS: m/z 288.9 (M+H)+.

Workup

  1. extractionextracted twice with dichloromethane
  2. washwashed with NaOH (1 N) until pH was 9
  3. customThe organic layer was separated
  4. dry with materialdried with MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a241b270a78047d0828d94895db44fab
Source dataset
uspto-grants-2014_08
Patent number
US08802700B2

Reaction notes

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