1620200-77-2Relevant articles and documents
Magnetically Recyclable Nano-Fe 2O 3-Catalyzed Chemoselective Synthesis and Antioxidant Activity of Diethyl (3-((5-Aryl-1 H-1,2,4-triazol-3-yl)thio)propyl) phosphonates
Murty,Katiki, Mohana Rao,Rao, B. Ramalingeswara,Nanubolu, Jagadeesh Babu,Buddana, Sudheer Kumar,Prakasham
, p. 2724 - 2737 (2014)
An efficient, green, and chemoselective S-alkylation of 5-aryl-1H-1,2,4-triazole-3-thiones with diethyl (3-bromopropyl)phosphonate in water, catalyzed by nano-Fe2O3 under ligand-and base-free conditions, is reported. Clean reaction, less expensive catalyst, excellent yields, and easy workup are the advantages of the present method. The catalyst can be easily collected by a magnet and recycled without significant loss in catalytic activity. The newly synthesized compounds were screened for their antioxidant property by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging assay. The majority of the compounds exhibited good antioxidant activity.