Hydrochloric Acid → 4-[(Thiophen-3-yl)sulfanyl]benzene-1,2-diamine

Participants

Reaction Steps

1.6 G. of 2-amino-4-(3-thienylthio)-1-nitrobenzene is treated with 1.6 g. of iron powder in a refluxing mixture of 1.6 ml. of water, 0.16 ml. of conc. hydrochloric acid and 100 ml. of toluene. After 3 hours when the reaction is complete, the iron residue is filtered off and the filtrate stripped under vacuum to afford 1,2-diamino-4-(3-thienylthio)-benzene.

Provenance & Evidence