Sodium Bicarbonate → sodium 8-methoxy-1-oxo-1H-2-benzopyran-3-carboxylate

HRID 1288254Notes

Reaction equation

HRID 1288254 reaction equation
[CH3:1][O:2][C:3]1[C:12]2[C:11](=[O:13])[O:10][C:9]([C:14]([OH:16])=[O:15])=[CH:8][C:7]=2[CH:6]=[CH:5][CH:4]=1.C(=O)(O)[O-].[Na+:21]>O>[CH3:1][O:2][C:3]1[C:12]2[C:11](=[O:13])[O:10][C:9]([C:14]([O-:16])=[O:15])=[CH:8][C:7]=2[CH:6]=[CH:5][CH:4]=1.[Na+:21]

Participants

4

Reactant 2

HCID 516892Sodium BicarbonateHCID 215047378-Methoxy-1-oxo-1H-2-benzopyran-3-carboxylic acid

Product 1

HCID 23711265sodium 8-methoxy-1-oxo-1H-2-benzopyran-3-carboxylate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a stirred suspension of the carboxylic acid of Example 5 (3.7529 g., 17.05 mM) in 225 ml. of distilled water is added 1.4324 g. (17.05 mM) of sodium bicarbonate. After stirring 0.75 hour, the solution is filtered and freeze-dried to give a pale green solid. The solid is dried at 100° under vacuum for four hours to give sodium 8-methoxy-1-oxo-1H-2-benzopyran-3-carboxylate as a pale green solid, m.p. 244°.

Workup

  1. filtrationthe solution is filtered
  2. customfreeze-dried
  3. customto give a pale green solid
  4. customThe solid is dried at 100° under vacuum for four hours

Sources & evidence

ORD record
ord-d4bbfe510bf04b8099284b201c02e41f
Source dataset
uspto-grants-1976_10
Patent number
US03987185

Reaction notes

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