Sodium Sulfite → Sodium pyridine-3-sulfinate

HRID 545308Notes

Reaction equation

HRID 545308 reaction equation
C([O-])(O)=O.[Na+:5].[O-]S([O-])=O.[Na+].[Na+].[N:12]1[CH:17]=[CH:16][CH:15]=[C:14]([S:18](Cl)(=[O:20])=[O:19])[CH:13]=1>O>[Na+:5].[N:12]1[CH:17]=[CH:16][CH:15]=[C:14]([S:18]([O-:20])=[O:19])[CH:13]=1

Participants

5

Reactant 3

HCID 24437Sodium SulfiteHCID 516892Sodium BicarbonateHCID 3164136Pyridine-3-sulfonyl chloride

Product 1

HCID 23697071Sodium pyridine-3-sulfinate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 0.39 g of NaHCO3 (4.6 mmol) and 0.58 g of Na2SO3 (4.6 mmol) in water (2.5 mL) were added 0.5 g (2.3 mmol) of 3-pyridinesulfonyl chloride. The reaction was heated at 80° C. for 3 h. The solvent was removed under reduced pressure. The filtrate was concentrated under reduced pressure to give 3-pyridylsulfinic acid sodium salt.

Workup

  1. customThe solvent was removed under reduced pressure
  2. concentrationThe filtrate was concentrated under reduced pressure

Sources & evidence

ORD record
ord-e5a323caed6c424bb1e876e4e999e27b
Source dataset
uspto-grants-2011_05
Patent number
US07935715B2

Reaction notes

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