Synthesis and Herbicidal Activity of α-(Substituted Phenoxybutyryloxy or Valeryloxy)alkylphosphonates and 2-(Substituted Phenoxybutyryloxy)alkyl-5,5-dimethyl-1,3,2-dioxaphosphinan-2-one
作者:Wei Wang、Sha-sha Zhang、Yuan Zhou、Hao Peng、Hong-wu He、Xing-tao Lu
DOI:10.1021/acs.jafc.6b02032
日期:2016.9.21
modification of alkylphosphonates 1, a series of α-(substituted phenoxybutyryloxy or valeryloxy)alkylphosphonates (4–5) and 2-(substituted phenoxybutyryloxy)alkyl-5,5-dimethyl-1,3,2-dioxaphosphinan-2-one (6) were designed and synthesized. The bioassay results indicated that 14 of title compounds 4 exhibited significant postemergence herbicidal activity against velvetleaf, common amaranth, and false daisy
在我们对烷基膦酸酯的修改工作的基础1,一系列α-(取代的phenoxybutyryloxy或戊酰氧基)烷基膦酸酯(4 - 5)和2-(取代的phenoxybutyryloxy)烷基-5,5-二甲基-1,3,2-设计并合成了-dioxaphosphinan-2-one(6)。生物测定结果表明,在150 g ai / ha下,14种标题化合物4表现出明显的苗后除草活性,对草皮,普通mar菜和假雏菊有活性。化合物5对所有测试的杂草均无活性。化合物6对被测双子叶杂草表现出中等至良好的抑制作用。结构-活性关系(SAR)分析表明,作为连接桥的碳链长度对除草活性有很大影响。化合物的广谱测试4-1,4-2,4-9,4-30,和4-36在75克活性成分/公顷下进行。特别是4-1对被测双子叶杂草表现出100%的抑制活性,高于草甘膦。