Bethanamudi Prasanna

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New 5-phenyl-1, 3, 4-oxadiazole-2-thiol derivative was synthesized by the ring closure reactions of benzohydrazides with carbon disulphide in presence of ethanolic KOH followed by substitution with secondary amines at 2 nd position. All the newly synthesized compounds were characterized by IR, NMR and LC-MASS spectral data. Most of them were tested for(More)
A series of novel pyranochromene-containing tetrazoles fused with pyrimidinethiones, pyrimidines, and diazepines 3a-f, 4a-f, and 5a-f were synthesized by condensation of the corresponding tetrazoles 2a-f with carbon disulfide, benzaldehyde, and 4-methoxy phenacyl bromide, respectively. The compound 2a-f was obtained by reaction of pyrano[3,2-c]chromenes(More)
A series of 3-substituted aminophenyl-4-hydroxycoumarins 4a-h were synthesized via Mannich reaction by using [BMIM]BF 4 ionic liquid under microwave irradiation. Compounds were characterized by IR, 1 H NMR and mass spectroscopy. All the compounds were tested for their antibacterial activity against B.subtilis, Bacillus.sp, E. coli and P.putida. Most of the(More)
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