3-Fluorobenzoic Acid → 3-Fluoro-N-methoxy-N-methylbenzamide

HRID 1943769Notes

Reaction equation

HRID 1943769 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][CH:10]=1)[C:5](O)=[O:6].Cl.[CH3:12][NH:13][O:14][CH3:15].Cl.CN(C)CCCN=C=NCC>ClCCl>[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][CH:10]=1)[C:5]([N:13]([O:14][CH3:15])[CH3:12])=[O:6]

Participants

5

Reactant 3

HCID 99683-Fluorobenzoic AcidHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

Product 1

HCID 212657573-Fluoro-N-methoxy-N-methylbenzamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a suspension of 3-fluorobenzoic acid (140 mg, 1 mmol) and N,O-dimethylhydroxylamine hydrochloride (107 mg, 1.1 mmol) in dichloromethane (2.5 mL) was added 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (EDC) (211 mg, 1.1 mmol) and the mixture stirred at room temperature for 75 h. The solvents were removed under reduced pressure and the residue chromatographed using ethyl acetate-hexane (4:6) to separate the pure product (130 mg, 71%).

Workup

  1. customThe solvents were removed under reduced pressure
  2. customthe residue chromatographed
  3. customto separate the pure product (130 mg, 71%)

Sources & evidence

ORD record
ord-7da7835754134cbca5603944f243bfbd
Source dataset
uspto-grants-2013_03
Patent number
US08394806B2

Reaction notes

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