Formic Acid → Methyl 4-formamido-3-methoxybenzoate

HRID 1009322Notes

Reaction equation

HRID 1009322 reaction equation
[C:1](OC(=O)C)(=[O:3])C.C(O)=O.[NH2:11][C:12]1[CH:21]=[CH:20][C:15]([C:16]([O:18][CH3:19])=[O:17])=[CH:14][C:13]=1[O:22][CH3:23]>C1COCC1>[CH:1]([NH:11][C:12]1[CH:21]=[CH:20][C:15]([C:16]([O:18][CH3:19])=[O:17])=[CH:14][C:13]=1[O:22][CH3:23])=[O:3]

Participants

5

Reactant 3

HCID 284Formic AcidHCID 7918Acetic AnhydrideHCID 602411Methyl 4-amino-3-methoxybenzoate

Product 1

HCID 23085082Methyl 4-formamido-3-methoxybenzoate

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Acetic anhydride (268 mL) was added dropwise to formic acid (401 mL) at room temperature, and the reaction solution was stirred at room temperature for 40 minutes. A solution of methyl 4-amino-3-methoxybenzoate (134 g) in THF (600 mL) was added dropwise to the reaction solution at room temperature, and the reaction solution was stirred for one hour. 3.8 L of ice water was added to the reaction solution, and the precipitated solid was filtered and further washed with water (2 L). The resulting solid was dried at 50° C. overnight to obtain 111 g of the title compound. The property values corresponded to the reported values (CAS #700834-18-0).

Workup

  1. stirringthe reaction solution was stirred for one hour
  2. filtrationthe precipitated solid was filtered
  3. washfurther washed with water (2 L)
  4. customThe resulting solid was dried at 50° C. overnight

Sources & evidence

ORD record
ord-dc197a9d19ce48be8b805366f4e64863
Source dataset
uspto-grants-2011_07
Patent number
US07973033B2

Reaction notes

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