【摘要】 用1,4-二氧-2-喹喔啉甲醛、水杨醛、甲醛、乙醛、丙酮、丁烯醛、环戊酮和环己酮与水合肼反应制备了8种中间体单腙,再用这些单腙与1,4-二氧-2-喹喔啉甲醛反应合成了8种双腙新化合物,并进行了表征。对这些新化合物对油菜和稗草进行了除草活性研究。研究结果表明1,4-二氧喹喔啉-2-甲醛-水杨醛双腙和1,4-二氧喹喔啉-2-甲醛-丙酮双腙表现较明显的活性,在500mg/L浓度时对稗草的株防效分别为51 3%和55 0%;对油菜株防效较弱,分别只有33 5%和17 5%。更多还原

【Abstract】 Eight intermediate hydrazones were synthesized through the reaction of hydrazine with salicylic aldehyde,1,4-dioxoquinoxaline formaldehyde,propanal,acetone,2-butylene aldehyde,cyclopentanone,cyclohexanone,then the eight novel dihydrazones were synthesized with 1,4-dioxoquinoxaline formaldehyde reaction with the hydrazones,and then characterized.The berbicidal activity of title compounds were screened on Brassica napus L and Echinochloa crusgalli L.The results of the herbicidal effects study display that 1,4-dioxoquinoxaline formaldehyde-salicylic aldehyde dihydrazone and 1,4-dioxoquinoxaline formaldehyde acetone dihydrazone have obvious herbicidal activity.It is 51.3% and 55.0% respectively at the consistency of 500mg/L on Echinochloa crusgalli L.It is weaker on Brassica napus L, by 33.5% and 17.5% respectively.更多还原