Methanol → Methyl 2-chloro-3-nitrobenzoate

HRID 599839Notes

Reaction equation

HRID 599839 reaction equation
S(=O)(=O)(O)O.[Cl:6][C:7]1[C:15]([N+:16]([O-:18])=[O:17])=[CH:14][CH:13]=[CH:12][C:8]=1[C:9]([OH:11])=[O:10].[CH3:19]O>>[CH3:19][O:10][C:9](=[O:11])[C:8]1[CH:12]=[CH:13][CH:14]=[C:15]([N+:16]([O-:18])=[O:17])[C:7]=1[Cl:6]

Participants

4

Reactant 3

HCID 887MethanolHCID 1118Sulfuric AcidHCID 198702-Chloro-3-nitrobenzoic acid

Product 1

HCID 10751184Methyl 2-chloro-3-nitrobenzoateYield 99%

Procedure

Concentrated sulfuric acid (2.0 mL) was added to a solution of 2-chloro-3-nitrobenzoic acid (10.0 g, 49.6 mmol) in methanol (80 mL), and the mixture was stirred under reflux overnight. After removing methanol by vacuum concentration, water was added, and extraction was performed with ethyl acetate. The organic extract was washed in series with water, saturated sodium hydrogen carbonate and saturated saline, and dried over magnesium sulfate. The title compound (10.6 g, 99%) was obtained by vacuum concentration as a white solid.

Workup

  1. temperatureunder reflux overnight
  2. customAfter removing methanol
  3. concentrationby vacuum concentration, water
  4. additionwas added
  5. extractionextraction
  6. extractionThe organic extract
  7. washwas washed in series with water, saturated sodium hydrogen carbonate and saturated saline
  8. dry with materialdried over magnesium sulfate

Sources & evidence

ORD record
ord-6bb130c36a3f4a5bb240954ad63b061c
Source dataset
uspto-grants-2011_03
Patent number
US07897792B2

Reaction notes

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