Pyridinium chloride → HCID 13290022, compound

Participants

Reaction Steps

A mixture of 4.8 g of 6,7-dichloro-5-methoxy-2-methylbenzo[b]thiophene and 40 g of pyridine hydrochloride is stirred at 190° for 3 hours. The cooled mixture is diluted with 500 ml of water. The solid is collected and air-dried. Recrystallization from ether-hexane mixture gives 6,7-dichloro-5-hydroxy 2-methylbenzo[b]thiophene as off-white crystals, mp 93°-95° C.

Provenance & Evidence