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Molecules 2018, 23(1), 122; doi:10.3390/molecules23010122

Novel 4-Methylumbelliferone Amide Derivatives: Synthesis, Characterization and Pesticidal Activities

Research Center of Agro-Bionic Engineering & Technology of Shandong Province, College of Chemistry & Pharm., Qingdao Agricultural University, Qingdao 266109, China
These authors contributed equally to this article.
Author to whom correspondence should be addressed.
Received: 17 December 2017 / Revised: 3 January 2018 / Accepted: 6 January 2018 / Published: 8 January 2018
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A series of novel 4-methylumbelliferone amide derivatives were designed, synthesized and characterized by 1H NMR, 13C NMR and HR-ESI-MS. The structures of compounds 4bd and 4be (compounds named by authors) were further confirmed by X-ray single crystal diffraction. The acaricidal, herbicidal and antifungal activities of the synthesized compounds were assayed for their potential use as pesticide. The results indicated that compounds 4bi, 4ac and 4bd were strong acaricidals against Tetranychus cinnabarinus, with 72h corrected mortalities of greater than 80% at 1000 mg/L. Meanwhile, compounds 4bh and 4bf exhibit the strongest inhibition against the taproot development of Digitaria sanguinalis and Chenopodium glaucum, and were even more potent than the commercial herbicide Acetochlor against D. sanguinalis. In addition, compounds 4bk, 4bh and 4bp showed the highest antifungal activity against the mycelium growth of Valsa mali, which makes them more effective than commercial fungicide Carbendazim. View Full-Text
Keywords: 4-methylumbelliferone; synthesis; acaricidal activity; herbicidal activity; antifungal activity 4-methylumbelliferone; synthesis; acaricidal activity; herbicidal activity; antifungal activity

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Wei, Y.; Miao, K.-L.; Hao, S.-H. Novel 4-Methylumbelliferone Amide Derivatives: Synthesis, Characterization and Pesticidal Activities. Molecules 2018, 23, 122.

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