Ethanol → 3,4-Diaminophenyl thiocyanate

Participants

Reaction Steps

To a suspension of 2-nitro-4-thiocyanato-aniline, 22.3 g. of powdered iron, 40 ml. of 96% ethanol and 50 ml. of water a solution of 2,2 g. of ferrous(II)chloride and 4 ml. of water is added dropwise under stirring at the boiling point of the mixture. Stirring is continued for a further 10 minutes, whereupon the reaction mixture is filtered. To the filtrate 200 ml. of water are added. On cooling crystals precipitate, which are filtered off. Thus 12.3 g. of 4-thiocyanato-1,2-diamino-benzene are obtained. Yield: 74.5%. M.p.: 108°-110° C.

Provenance & Evidence