Hydrochloric Acid → Benzoic acid, 3-(acetylamino)-2-nitro-, ethyl ester

HRID 276027Notes

Reaction equation

HRID 276027 reaction equation
[C:1](Cl)(=[O:3])[CH3:2].[NH2:5][C:6]1[C:7]([N+:17]([O-:19])=[O:18])=[C:8]([CH:14]=[CH:15][CH:16]=1)[C:9]([O:11][CH2:12][CH3:13])=[O:10].Cl>CN(C)C1C=CC=CC=1>[C:1]([NH:5][C:6]1[C:7]([N+:17]([O-:19])=[O:18])=[C:8]([CH:14]=[CH:15][CH:16]=1)[C:9]([O:11][CH2:12][CH3:13])=[O:10])(=[O:3])[CH3:2]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 6367Acetyl chlorideHCID 18315537Ethyl 3-amino-2-nitrobenzoate

Product 1

HCID 18315582Benzoic acid, 3-(acetylamino)-2-nitro-, ethyl ester

Reagents, catalysts & solvents 1

HCID 949N,N-DimethylanilineSolvent

Procedure

Acetyl chloride (13 ml) was added dropwise to a solution of 2.98 g of ethyl 3-amino-2-nitrobenzoate and 20 ml of N,N-dimethylaniline in an ice bath. The mixture was stirred at room temperature for 48 hours. The reaction solution was acidified with 10% hydrochloric acid, and was extracted twice with ethyl acetate. The organic layer was washed three times with water. The solvent was distilled off under reduced pressure, and the resulting residue was crystallized with hexane. The crystals were separated through filtration, washed with hexane, and dried to give 3.30 g of ethyl 3-acetylamino-2-nitrobenzoate.

Workup

  1. extractionwas extracted twice with ethyl acetate
  2. washThe organic layer was washed three times with water
  3. distillationThe solvent was distilled off under reduced pressure
  4. customthe resulting residue was crystallized with hexane
  5. customThe crystals were separated through filtration
  6. washwashed with hexane
  7. customdried

Sources & evidence

ORD record
ord-7a01beb7110244ddb1150a9f6048d994
Source dataset
uspto-grants-2002_03
Patent number
US06352985B1

Reaction notes

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