HCID 13953832, compound → HCID 13953737, compound

Participants

Reaction Steps

A deep red colour was immediately observed when 3-(2,4-dichlorophenylthio)propanoic acid (1.20 g, 4.78 mmol; from step (ii) above) was added to conc. sulfuric acid (30 mL). After stirring overnight at ambient temperature the reaction mixture was poured into ice. The red colour disappeared. Extraction with diethyl ether, washing with aq., sat. sodium hydrogencarbonate, drying (MgSO4) and removal of the solvent in vacuo afforded a deep yellow solid.

Provenance & Evidence