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Updated: Jul 31, 2026

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Published on: June 20, 2014
Synthesis, characterization and pharmacological activities of 5,6,11,12-tetrahydroindolo[2,3-alpha]carbazole
1Department of Chemistry, Bharathiar University, Coimbatore 641 046, India.
Abstract:
A series of new 5,6,11,12-tetrahydroindolo[2,3-alpha]carbazole derivatives (3a-h) was synthesized. Treatment of 8-methyl-1-oxo-1,2,3,4-tetrahydrocarbazole (1a) with phenylhydrazine hydrochloride in ethanol furnished the title compound (3a) in poor yield along with 8-methyl-1-phenylhydrazono-1,2,3,4-tetrahydrocarbazole (2a). Better yields were obtained when 1a-h were treated with phenylhydrazine in glacial acetic acid. All the newly synthesized compounds were characterized on the basis of IR, NMR, mass-spectra and elemental analysis and screened for pharmacological activities.
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