Nd-LArg-۵BrSalen@MNC as a practical and reusable nanocatalyst in thesynthesis of tetrazoles with antifungal properties in agricultural

This project reports a simple procedure for the synthesis and characterization of neodymiumon MCM-۴۱ magnetic nanoparticles (MCM-۴۱ MNC) as a reusable nanocatalyst. Firstly, MCM-۴۱ MNC prepared by Fe۳O۴-dopping into mesoporous MCM-۴۱ channels. Then, a novelneodymium Schiff base complex was immobilized on MCM-۴۱ MNC. Finaly, this catalyst (Nd-LArg-۵BrSalen@MNC) was used as magnetically recoverable nanocatalyst in the synthesis oftetrazoles. This nanocatalyst was characterized via TGA, TEM, SEM, FT-IR, SEM-EDS, VSM,ICP, XRD, WDX, and BET techniques. All tetrazole products were synthesized with high yield inshort time and were identified by ۱H NMR, FT-IR and physical properties. Nd-LArg-۵BrSalen@MNC nanocatalyst can be isolated and reused for several times consecutively withoutconsiderable loss of its catalytic activity. The recycled catalyst was characterized by SEM, EDS,WDX, XRD and FT-IR techniques. Also, the antifungal activity of the some tetrazole derivativeswas studied against Fusarium oxysporum (rot disease of chickpea root) and Botrytis cinerea (graymold of strawberry) using the paper disk method on PDA culture medium.

کلیدواژه ها:

Mesoporous MCM-۴۱ ، magnetic nanoparticles ، tetrazoles ، antifungal ، neodymium