在现有原卟啉原氧化酶抑制剂构效关系基础上,设计了一类结构新颖的3-芳基哒嗪酮类化合物,并探索了该类化合物的合成方法,合成了9个3-芳基哒嗪酮类化合物,并用于开展室内除草活性测定和作物安全性评价.结果表明3-芳基哒嗪酮类化合物具有较高的芽前、芽后除草活性和作物安全性.对高活性化合物3-[2,4-二氯-5-(环戊氧基)苯基]-1-甲基-6-(三氟甲基)哒嗪-4(1H)-酮(Ie)进行了苗后玉米田间小区药效验证试验,结果表明化合物Ie在60 g a.i./hm2剂量下的总草防效略高于105 g a.i./ha用量的硝磺草酮,且对苗后玉米安全.
【英文摘要】
A novel series of 3-aryl pyridazinone was proposed on the base of structure activity relationships of diverse protoporphyrinogen oxidase inhibitors. Synthetic method of 3-aryl pyridazinones was investigated and 9 compounds were synthesized for interior screening test of herbicidal activity and crop safety. Bioassay results showed that most of 3-aryl-pyridazinones exhibit excellent pre-or post-emergence herbicidal activity. Herein, 3-(2,4-dichloro-5-(cyclopentyloxy)phenyl)-1-methyl-6-(trifluoro methyl) pyrid...
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