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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068331Generated: October 29, 2026

Sodium Pyrosulfite → HCID 18630134, compound

https://huagongshe.com/reaction/1068331

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium PyrosulfiteHCID 656671—
ReactantHCID 18630040HCID 18630040—
ReactantPotassium hydroxy sulfiteHCID 23707502—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 18630134HCID 1863013460%

Reaction Steps

A 0° C. solution of N-ethyl-2-fluoro-6-(1,1-dimethylethylthio)benzamide (3.45 g, 13.51 mmol) in methanol (100mL) was combined with a 0° C. solution of OXONE® (8.31 g, 13.51 mmol) in water (100 mL). This mixture was stirred for 2 min, then was poured into 25% aq sodium metabisulfite (100 mL) and extracted with ether (3×100 mL). The combined organics were washed with brine followed with water, then was dried (MgSO4), concentrated, and recrystallized from ethyl acetate—hexanes to afford 2.2 g of the title compound as a white solid, a 60% yield. m.p. 114-116° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06248894B1
Source datasetuspto-grants-2001_06
ORD IDord-bfc7c3af154e42dab2a2cf47a9e4ec90
Source noteuspto-grants-2001_06