Potassium Carbonate → Alfa-oxo-1H-pyrrolo-[2,3B]pyridine-3-acetic acid monopotassium salt

HRID 987538Notes

Reaction equation

HRID 987538 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][N:8]=2)[C:3]([C:10](=[O:15])[C:11]([O:13]C)=[O:12])=[CH:2]1.C([O-])([O-])=O.[K+:20].[K+]>CO.O>[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][N:8]=2)[C:3]([C:10](=[O:15])[C:11]([O-:13])=[O:12])=[CH:2]1.[K+:20]

Participants

5

Reactant 2

HCID 11430Potassium CarbonateHCID 6028556Methyl 7-azaindole-3-glyoxylate

Product 1

HCID 23721194Alfa-oxo-1H-pyrrolo-[2,3B]pyridine-3-acetic acid monopotassium saltYield 90.4%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

Compound 2a (43 g, 0.21 mol) and K2CO3 (56.9 g, 0.41 mol) were dissolved in MeOH (200 ml) and H2O (200 ml). After 8 hours, product 3a precipitated out from the solution. Filtration afforded 43 g of compound 3a as a white solid in 90.4% yield.

Workup

  1. customproduct 3a precipitated out from the solution
  2. filtrationFiltration

Sources & evidence

ORD record
ord-afd6353664794d98b60ec340d4bef2e7
Source dataset
uspto-grants-2003_10
Patent number
US06632819B1

Reaction notes

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