Hydrochloric Acid → 2-(6-Formamidopyridin-2-yl)acetic acid

HRID 1982681Notes

Reaction equation

HRID 1982681 reaction equation
[CH:1]([NH:3][C:4]1[N:9]=[C:8]([CH2:10][C:11]([O:13]CC)=[O:12])[CH:7]=[CH:6][CH:5]=1)=[O:2].[OH-].[Na+].O.Cl>C(O)C>[CH:1]([NH:3][C:4]1[N:9]=[C:8]([CH2:10][C:11]([OH:13])=[O:12])[CH:7]=[CH:6][CH:5]=1)=[O:2]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 13060164HCID 13060164, compound

Product 1

HCID 130601732-(6-Formamidopyridin-2-yl)acetic acidYield 65.7%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

To a solution of ethyl 2-(6-formamidopyridin-2-yl)acetate (4.4 g.) in ethanol (44 ml.) as added 2N sodium hydroxide solution [solvent:water (1 part)+ethanol (4 parts] (15.9 ml.) at 18° to 20° C. over 30 minutes, and then the solution was stirred at room temperature for one hour. After 1N hydrochloric acid (31.7 ml.) was added to the solution, the solution was concentrated under reduced pressure. The residue was extracted with hot ethyl acetate (500 ml.) and the extract was concentrated under reduced pressure. The residue was washed with ethyl acetate to give 2-(6-formamidopyridin-2-yl)acetic acid (2.5 g.), mp 125° to 126° C. (dec.).

Workup

  1. concentrationthe solution was concentrated under reduced pressure
  2. extractionThe residue was extracted with hot ethyl acetate (500 ml.)
  3. concentrationthe extract was concentrated under reduced pressure
  4. washThe residue was washed with ethyl acetate

Sources & evidence

ORD record
ord-ed840cf0844f482eb646de5104785e74
Source dataset
uspto-grants-1986_06
Patent number
US04596869

Reaction notes

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