Ethanol → HCID 23676783, compound

Participants

Reaction Steps

In a flask, 2-chloro-5-(trifluoromethyl)pyridine (54.5 g, 0.3 mol), sodium hydrogen sulfite (125 g, 1.2 mol), ethanol (600 ml) and water (600 ml) were charged and heated under reflux for 198 hours. After evaporating off the solvent, to the solid residue, conc. hydrochloric acid was added. The mixture was evaporated to dryness. The residue was extracted with methanol and filtrated. The filtrate was evaporated to dryness to obtain sodium 5-(trifluoromethyl)pyridine-2-sulfonate (64.0 g). Yield, 86%. Decomposition point, 356°-370° C.

Provenance & Evidence