Abstract
A one-pot, multigram, and chromatography-free procedure has been
developed for the preparation of 1,8-diamino-9H -carbazole, a
versatile synthon for the synthesis of anion receptors and conducting
polymers. The synthesis consists of a one-pot, palladium-catalyzed reduction
of nitro groups and hydrodechlorination of 3,6-dichloro-1,8-dinitrocarbazole,
which in turn can be easily produced on a large scale from inexpensive
carbazole.
Key words
heterocycles - amines - palladium catalysis - dechlorination - anion receptors
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