Synthesis, Characterization and Biological Screening of some Newer Carbazole Conjugates

Published on Apr 9, 2022in International research journal of pharmacy0
· DOI :10.52711/0974-4150.2022.00027
Neetu Verma0 (Department of Chemistry, Faculty of Science and IT), Shruti Awasthi0 (Government College), Vikrant Jain0 (Government College)
A novel series of novel 5-[(9H-carbazol-9-yl)methyl]-N-[(substituted phenyl)(piperazin-1-yl)methyl]-1,3,4-oxadiazol-2-amines (4a–o) products were synthesized from starting material of carbazole, which were on reacted with ethyl chloro-acetate yielded to form ethyl 2-(9H-carbazole-9-yl)acetate (1). Compound 1 on reacted with semicarbazide followed by cyclisation by sulphuric acid to give 5-((9H-carbazole-9-yl)-1,3,4-oxadiazol-2-amine (3), which through Mannich condensation with piperazine and a variety of aromatic aldehydes in the occurrence of acetic acid to form titled compounds (4a–o). The structures of compounds were characterized by UV, FT-IR, 1H-NMR and MS spectral studies, and by elemental analysis.
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