Adel Hamed Mohamed Mandur, V. N. Buyanov, V. E. Zhigachev
Oct 1, 1990
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Journal
Chemistry of Heterocyclic Compounds
Abstract
The reaction of nitroindoles with chlorosulfonic acid in the presence of sodium sulfate was used to synthesize 4-, 5-, 6-, and 7-nitroindole-3-sulfonyl chlorides. Under the influence of ammonia and several amines these compounds were convened to nitroindole-3-sulfonamides which were reduced with hydrazine hydrate in the presence of Raney nickel to the corresponding amines.