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

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Reaction Steps

4 G. of 2-nitro-4-(2,2,3,3-tetrafluoropropylthio) aniline is treated with 24 g. of stannous chloride in 25 ml. on concentrated hydrochloric acid. The mixture is stirred for one-half hour, basified with ammonium hydroxide and extracted with chloroform. The chloroform solution is filtered, dried over sodium sulfate, and evaporated to give 1,2-diamino-4-(2,2,3,3-tetrafluoropropylthio) benzene.

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