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为了进一步寻找高效的磺酰脲类除草剂,以商品化磺酰脲类除草剂为基础,将三唑啉酮杂环引入到分子中,合成了23个未见文献报道的新型磺酰脲化合物,通过1H NMR、高分辨质谱以及X射线单晶衍射确定了其结构.经盆栽法和平皿法测试了所有化合物的除草活性以及部分化合物对油菜的IC50值.结果表明,化合物5h具有优秀的除草活性,其对油菜的IC50值与对照药醚苯磺隆和醚磺隆相近,在3.75 g/ha浓度下对单子叶杂草稗草具有优异的盆栽抑制活性.
In order to further search for efficient sulfonylurea herbicides, based on commercial sulfonylurea herbicides, triazolinone heterocycles were introduced into the molecule to synthesize 23 novel sulfonylurea compounds which have not been reported , And its structure was confirmed by 1H NMR, high resolution mass spectrometry and X-ray single crystal diffraction.The herbicidal activity of all the compounds and the IC50 values of some compounds on rapeseed were tested by potting and plate method.The results showed that compound 5h had excellent weeding The results showed that the IC50 value of rapeseed was close to that of control etoposide and metsulfuron-methyl, and had excellent potting inhibitory activity against barnyardgrass at the concentration of 3.75 g / ha.