长烯衍生的初级氨基碳酸盐用于可持续的杂草管理:合成和除草剂活性
Yanqun Huang1, Pingping Lu2, Hongyun Lan2
1School of Materials and Environment, Guangxi Minzu University, Nanning 530105, China.
Journal of agricultural and food chemistry
|July 25, 2024
概括
十二种新的长烯衍生化合物显示出强大的除草剂活性,表现优于草甘. 化合物5l表现出对关键杂草的显著抑制,突出了它们作为有效植物除草剂的潜力.
科学领域:
- 农业化学 农业化学
- 有机化学 有机化学
- 植物科学 植物科学
背景情况:
- 杀草剂对现代农业至关重要,但对环境影响和耐药性的担忧迫使开发新型化合物.
- 长烯是一种天然烯,可以作为合成新农业化学品的潜在支架.
- 开发具有有利环境特征的有效和选择性除草剂是一个持续的挑战.
研究的目的:
- 合成和表征新型长烯衍生的初级氨基碳酸盐.
- 为了评估这些合成化合物对常见杂草的除草活性.
- 调查影响其除草剂疗效的结构-活性关系.
主要方法:
- 合成十二种长烯衍生的初级氨基碳酸盐.
- 结构确认使用里埃变换红外光谱学,1H NMR,13C NMR和高分辨率质谱学.
- 生物测试以确定除草剂活性,抑制率和半最大抑制度 (IC50) 对Lolium multiflorum Lam. 和布拉西卡坎佩斯特里斯 (Brassica campestris).
主要成果:
- 所有合成的化合物都表现出优越的除草剂活性,相比于它们的母炭酸和商业除草剂草甘.
- 几种化合物实现了100%的抑制率对Lolium multiflorum Lam. 在低度 (0.0390.313 mmol/L) 中使用.
- 化合物5l表现出最高活性,IC50值约为0.010和0.023 mmol/L,对根和芽的生长抑制分别为0.010和0.023 mmol/L.
结论:
- 长烯衍生的初级氨基碳酸盐是新型植物除草剂的有希望的类别.
- 结构性修改,如碳酸盐类型和碳链长度,显著影响除草剂的性能.
- 这些化合物显示出作为高性能,低剂量除草剂的使用潜力,为现有的农业化学品提供了替代品.
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