• Shailash Mallikarjun Choudhari
• Dr. Surabhi Singh,

Medicinal chemists were drawn to investigate lead compounds for the therapy of many microbial illnesses due to the benzoxazinone scaffold's versatile biological activity profile. The unquestionable antibacterial qualities of thiosemicarbazones were confirmed in extensive literature, which prompted our current investigation. Condensation of substituted anthranilic acid (1a1c) with acetyl chloride (2) yields methyl bzoxazine-4-ones (3a-3c), which are oxidized with selenium dioxide to the corresponding aldehydes (4a-4c), and then condensation with different thiosemicarbazides to create novel benzoxazinonethiosemicarbazone (5a-5c) hybrids. The synthesis of fifteen new benzoxazinone-thiosemicarbazones (5a1-5a5, 5b1-5b5, and 5c1-5c5) in sufficient quantities was followed by a thorough spectral investigation of the compounds utilizing sophisticated analytical tools. The compounds with the names were tested for antifungal and antibacterial properties. According to the results, every synthetic molecule was shown antibacterial qualities. It was argued that compound 5b4 possessed strong antibacterial qualities against the specified types of bacteria and fungi

Benzoxazinone, Thiosemicarbazides, Thiosemicarbazone, Antibacterial, Antifungal, Agar disc diffusion

"SYNTHESIS AND EVALUATION OF NOVEL BENZOXAZINONE DERIVATIVES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 5, page no.c383-c397, May-2025, Available :http://www.jetir.org/papers/JETIR2505247.pdf

"SYNTHESIS AND EVALUATION OF NOVEL BENZOXAZINONE DERIVATIVES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 5, page no. ppc383-c397, May-2025, Available at : http://www.jetir.org/papers/JETIR2505247.pdf