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自主设计、合成了系列新型邻胺基苯甲酰胺类化合物,并对其进行了杀虫活性、安全性、毒性、工艺、制剂、温室和/或田间防治效果等研究,获得了Ia、Ib和Ic等系列自主知识产权的高杀虫活性化合物.结果 表明化合物Ic等对咀嚼口器害虫如粘虫和小菜蛾等的活性较邻胺基苯甲酰胺类杀虫剂氯虫苯甲酰胺水平相当或更胜一筹,对刺吸口器害虫如蚜虫等的活性远优于氯虫苯甲酰胺及溴氰虫酰胺.田间药效试验进一步证实,Ic等对咀嚼口器害虫如水稻二化螟、稻纵卷叶螟、甜菜夜蛾等的防治效果相当于或优于氯虫苯甲酰胺,对刺吸口器害虫如蚜虫等的防治效果优于溴氰虫酰胺.新型邻胺基苯甲酰胺类化合物Ic等可作为候选杀虫剂进一步研究开发. 相似文献
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In this study,extractive distillation has been applied to separate catechol(CAT) from carbofuran phenol(CFP) with high purity and yield.The relative volatility of CFP to CAT was measured,and the choice of separating agents was investigated.The experimental results indicated that CFP/CAT is an azeotropic system with an azeotropic point at 93.40℃/0.400 kPa and an azeotropic mixture containing 49.96% of CFP and 50.04% of CAT.Data from the determination of the relative volatility have shown that separating agents such as diglycol and 4-butylcatechol(4-TBC) are able to increase the relative volatility up to 1.90.In one shot process batch extractive distillation of CFP mixture with 3%(by mass) diglycol as separating agent,the purity and yield of the obtained CFP was 99.0% and 95.0%,respectively,while the distillation without separating agent provided a purity and yield of only 98.0% and 90.0%,respectively.There was no residual separating agent found in the product. 相似文献