Thiophenol → HCID 21506048, compound

Participants

Reaction Steps

A mixture of 4-chloro-3-nitro-5-sulphamyl-benzoic acid (28 g), thiophenol (10.25 ml), and 1N sodium bicarbonate (300 ml) was refluxed for 3 hours. After cooling, the precipitated sodium salt of 3-nitro-4-phenylthio-5-sulphamyl-benzoic acid was filtered off. The sodium salt was dissolved in hot water (200 ml), and 3-nitro-4-phenylthio-5-sulphamyl-benzoic acid was precipitated by the addition of 4N hydrochloric acid until the pH was 1. After isolation and recrystallization from aqueous ethanol, the acid was obtained with a melting point of 245°-247°C.

Provenance & Evidence