Polyaniline doped G-C3N4 (CNPANI) composite sample was synthesized by standard impregnation method. The effect of CNPANI composite on structure, particle size and morphology of composite sample was investigated. The prepared sample was charactered by XRD, FT-IR and SEM – EDS techniques. The photocatalytic activity of the novel photo catalyst was evaluated using Rhodamine B(Rh-B) ASAtarget pollutant. The CNPANIcomposite sample exhibit enhanced photocatalytic performance undervisible light irradiation thanpureg-C3N4.

A simple, rapid, selective and quantitative HPLC method has been developed for the determination of Yohimbine from Yohimbe bark. The mobile phase was Methanol: Acetonitrile: Phosphoric acid (0.4%) 37: 0.7: 62.3 (V/V), Flow rate 1.0ml/min. The retention time of pure Yohimbine was 8.662 minutes. The content of Yohimbine extract powder was 62% and reasonable pure sample purity was 95% respectively. The developed method was found to be simple, robust, rugged and economical for routine analyse the Yohimbine extract and bark raw material.

In view of potent antimicrobial activities enhanced by 5-((E)-3, 4-dimethoxybenzylidene)-3-phenyl-2-((E)-styryl)-3, 5-dihydro-4H-imidazol-4-one (7a-f) were synthesized by the cyclo condensation of 4-((E)-3, 4-dimethoxybenzylidene)-2-((E)-styryl) oxazol-5(4H)-one (1) and various substituted aryl amines. The compound (5) can be obtained from with 3, 4-dimethoxy benzaldehyde and acetic anhydride in the presence of sodium acetate and added catalyst. The compound (3) can be prepared from cinnamoyl chloride with glycine which is also obtained by the cinnamic acid with thionyl chloride. The structures of all the newly derivatives were evaluated by using advanced spectroscopic data such as IR, ¹H NMR, ¹³C NMR and LCMS and also determination of the structure by elemental analysis. All the synthesized derivatives were screened for in vitro activities against a panel of Gram (+ve) and Gram-(-ve) bacteria and the yeast-like pathogenic fungal Candida albicans.

In depth study of bioactive synthesis of a novel series of Schiff bases of (E)-6-(1-(phenylimino) ethyl)-9H-carbazol-3-ol and they are were synthesized by a conventional method of synthesis from substituted aromatic amines and hetero aromatic amine with compound (3) in the presence of Bronsted acid like methanesulphonic acid in ethanol as solvent and  the compound (3) can be obtained P-benzoquinone with 4-amino acetophenone in the presence copper iodide in toluene  with strong  base such as  Cs₂CO₃ at 100^oC. All the newly synthesized derivatives were evaluated spectroscopic method such as IR, ¹H NMR and ¹³CNMR and mass spectral analysis. The structure of the compounds was analyzed by elemental analysis. All derivatives were screened against two gram positive and two gram negative bacterial strains and three fungal strains.

An efficient TCSA as Bronstd acid catalyst for synthesizing bioactive compounds 1-(4-phenyl)-6-methyl-2-thioxo-1, 2, 3, 4-Tetrahydropyrimidine-5-yl) ethanone by multi-component condensation of acetylacetone, substited aryl aldehydes and thiourea catalyzed by tricholro salicylic acid. A series of compounds were synthesized, confirmed by analytical and spectral data (¹HNMR, ¹³CNMR and LCMS) and examined for their antimicrobial activity.