Microwave-promoted solvent free one-pot synthesis of triazolo[1,2-a] indazole-triones catalyzed by silica-supported La0.5Ca 0.5CrO3 nanoparticles as a new and reusable perovskite-type oxide

  • N. Zahedi
  • A. Javid
  • M. K. Mohammadi
  • H. Tavakkoli
Keywords: One-pot reaction, Triazolo[1, 2-a]indazole trione, Perovskite oxide, Nano catalyst, Microwave, Solvent-free


Microwave assisted solvent free synthesis of triazolo[1,2-a]indazole-1,3,8-triones through one-pot three-component reaction of dimedone, phenyl urazole and aromatic aldehydes is presented. The reaction process was catalyzed by La0.5Ca0.5CrO3 and silica-supported La0.5Ca0.5CrO3 nanoparticles as new perovskite-type catalysts. The nano catalyst was studied by XRD, SEM and IR characterization tools. Some advantages of the proposed approach include high yield, being eco-friendly, procedure convenience and reusability of the catalyst.


KEY WORDS: One-pot reaction, Triazolo[1,2-a]indazole trione, Perovskite oxide, Nano catalyst, Microwave, Solvent-free


Bull. Chem. Soc. Ethiop. 2018, 32(2), 239-248.

DOI: https://dx.doi.org/10.4314/bcse.v32i2.5


Journal Identifiers

eISSN: 1726-801X
print ISSN: 1011-3924