Formic Acid → Methyl 4-formamido-3-methoxybenzoate

HRID 1436079Notes

Reaction equation

HRID 1436079 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-79ca54d07d284796a80ddf8eadf44a59
Source dataset
uspto-grants-2009_11
Patent number
US07618960B2

Reaction notes

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