HCID 7854344, compound → HCID 23296465, compound

Participants

Reaction Steps

A suspension of 1.0 g (3.05 mmol) of 2-[(4-cyanophenyl)methylthio]-6-nitro-benzothiazole is heated to boiling in 60 ml glacial acetic acid until a clear solution is formed. Then 2.0 g (36 mmol) of iron powder is added in two batches and the resulting mixture is refluxed for 5 minutes. It is filtered, and the filtrate is concentrated in vacuo. The crude product is made alkaline by the addition of conc. ammonia and purified by flash chromatography (silica gel, ethyl acetate/petroleum ether=20:80 to 35:65).

Provenance & Evidence