Thionyl Chloride → HCID 53925410, compound

Participants

Reaction Steps

16.6 g of the 7-chloro-2-benzo[b]thiophenecarboxylic acid prepared in A above was added to thionyl chloride (48 ml) and toluene (10 ml) and refluxed for 4 hours. Excess thionyl chloride was then removed and the resultant residue was treated with toluene (20 ml). The toluene was then removed under reduced pressure to produce 17.8 g of 7-chloro-2-benzo[b]thiophenecarboxylic acid chloride as a reddish solid.

Provenance & Evidence