Synthesis and herbicidal activity of<i>O,O</i>-dialkyl<i>N</i>-[2-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yloxy)benzoxyl]-1-amino-1-substitutedbenzyl phosphonates
作者:Wu Tang、De-Qing Shi
DOI:10.1002/jhet.292
日期:——
of novel 1,2,4-triazolo[1,5-a]pyrimidine derivatives containing an α-amino phosphonate moiety were designed and synthesized by the multi-step reactions. Their structures were clearly confirmed by spectroscopic data (IR, 1H NMR, 31P NMR, MS) and elemental analysis, compound was further determined by X-ray diffraction crystallography. The results of preliminary bioassay indicated that some of the title
一系列含有α-氨基膦酸酯部分的新型1,2,4-三唑并[1,5-a]嘧啶衍生物 通过多步反应设计和合成。通过光谱数据(IR,1 H NMR,31 P NMR,MS)和元素分析清楚地确认了它们的结构,通过X射线衍射晶体学进一步确定。初步生物测定的结果表明,一些标题化合物在100 mg / L的浓度下对双子叶植物(甘蓝型油菜)具有中等的除草活性。例如,化合物对野菜双歧杆菌(B. campestris L)具有92.0%的抑制活性,并且比商品化的除草剂双嘧贝酸钠具有更好的活性。但是,化合物 在10 mg / LJ Heterocyclic Chem。,(2010)的浓度下显示弱的除草活性。