Abstract
Ethyl 2-oxo-2H-chromene-3-carboxylate derivatives were synthesized and characterized by FT-IR, NMR, MS and X-ray crystal diffraction. Compound 3d crystallizes in the triclinic system with space group P-1. Compound 3e crystallizes in the monoclinic system with space group P21/c. The potential anti-fungal activities have been studied against five kinds of common fungi at concentrations of 200 ppm and 500 ppm. The research showed that the target compounds exhibit certain anti-fungal activity against the tested fungal strains. The inhibition rate of compound 3b was the highest against Fusarium oxysporum, up to 60.29% at 500 ppm. Compound 3b is promising to become the lead compound of pesticide in the future, which is worthy of further study.
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