Hydrochloric Acid → Methyl 4-amino-5-chloro-2-methoxybenzoate

HRID 1606901Notes

Reaction equation

HRID 1606901 reaction equation
[CH3:1][O:2][C:3]1[CH:11]=[C:10]([NH2:12])[C:9]([Cl:13])=[CH:8][C:4]=1[C:5]([OH:7])=[O:6].Cl.[CH3:15]O>>[CH3:1][O:2][C:3]1[CH:11]=[C:10]([NH2:12])[C:9]([Cl:13])=[CH:8][C:4]=1[C:5]([O:7][CH3:15])=[O:6]

Participants

4

Reactant 3

HCID 313Hydrochloric AcidHCID 887MethanolHCID 816264-Amino-5-chloro-2-methoxybenzoic acid

Product 1

HCID 700493Methyl 4-amino-5-chloro-2-methoxybenzoate

Procedure

To a solution of 50 g of 2-methoxy-4-amino-5-chlorobenzoic acid in 500 ml of methanol is added HCl gas until all the material dissolves. Stirring is continued overnight, the solvent removed, ether added, filtered, dried over magnesium sulfate and evaporated to dryness to obtain methyl 2-methoxy-4-amino-5-chlorobenzoate which is used directly in the next step.

Workup

  1. dissolutiondissolves
  2. customthe solvent removed
  3. additionether added
  4. filtrationfiltered
  5. dry with materialdried over magnesium sulfate
  6. customevaporated to dryness

Sources & evidence

ORD record
ord-1a2b7efb010b41f1a33814e94301939f
Source dataset
uspto-grants-1989_09
Patent number
US04863921

Reaction notes

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