Dimethylformamide → 5-[(1H-Imidazol-2-yl)sulfanyl]-2-nitroaniline

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Reaction Steps

A solution of 2.0 g. 2-mercaptoimidazole in 25 ml. dimethylformamide is treated with 0.85 g. of 57% sodium hydride (in oil suspension). 3.0 G. of 2-amino-4-chloro-1-nitrobenzene is added and the mixture heated overnight at 155°-155° C. The mixture is diluted with water, filtered and the crude product washed with chloroform, recrystallized from aqueous methanol to yield 2-amino-4-(imidazol-2-ylthio)-1-nitrobenzene.

Provenance & Evidence