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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 545308Generated: October 28, 2026

Sodium Sulfite → Sodium pyridine-3-sulfinate

https://huagongshe.com/reaction/545308

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium SulfiteHCID 24437—
ReactantSodium BicarbonateHCID 516892—
ReactantPyridine-3-sulfonyl chlorideHCID 3164136—
SolventWaterHCID 962—
ProductSodium pyridine-3-sulfinateHCID 23697071—

Reaction Conditions

Temperature80 °C

Reaction Steps

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.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935715B2
Source datasetuspto-grants-2011_05
ORD IDord-e5a323caed6c424bb1e876e4e999e27b
Source noteuspto-grants-2011_05