K P Srivastava

Microwave-Assisted Green Synthesis and Antimicrobial Evaluation of Triphenyl-[1,2,4]-triazolo-[1,5-a]pyrimidine Analogues

Ranjan Kumar Singh & K P Srivastava · International Research Journal of Pure and Applied Chemistry · 2026

A rapid, environmentally friendly and efficient microwave-assisted one-pot synthesis was developed for novel 2,5,7-triphenyl-1,2,4-triazolo[1,5-a]pyrimidine derivatives using a recyclable polyphosphoric acid-silica (PPA-SiO₂) catalyst. The compounds were synthesized via a three-c...

Open access Research Article 10.9734/irjpac/2026/v27i41018

Green Synthesis of Derivatives of 2-Aminobenzothiazole as Novel Antimicrobials

Kaushal Kishor Prasad & K P Srivastava · International Research Journal of Pure and Applied Chemistry · 2026

A novel series of 2-(1,3-benzothiazol-2-ylcarbamoyl)-benzoic acid was synthesized by a one-pot reaction of 2-aminobenzothiazole with phthalic anhydride, using ionic liquid {1-butyl-3-methylimidazolium bisulfate, ([BMIM]+[HSO4]-)} as a green alternative to volatile organic solvent...

Open access Research Article 10.9734/irjpac/2026/v27i1974