Design, synthesis and insecticidal activities of dihydropyridine-fused neonicotinoids compounds with trifluoromethyl group
作者:Zhongzhen Tian、Shuxia Cui、Li Dongmei、Zhiping Xu
DOI:10.1007/s11164-014-1835-y
日期:2015.10
novel neonicotinoids containing a dihydro-pyridine ring and a trifluoromethyl group were designed and synthesized by multicomponent reactions of 6-Cl-PMNI, triethoxymethane and 4,4,4-trifluoro-3-oxobutaneanilides (9) under solvent-free and catalyst-free conditions. The trifluoromethyl group plays an important role as an electron-withdrawing group in enhancing the reaction activity of compound 9. The
通过6-Cl-PMNI,三乙氧基甲烷和4,4,4-三氟-3-氧代丁烷苯胺化物(9)的多组分反应,在无溶剂的条件下,设计和合成了一系列含有二氢吡啶环和三氟甲基的新烟碱类化合物。无催化剂的条件。三氟甲基在增强化合物9的反应活性中作为吸电子基团起着重要作用。目标化合物通过1 H NMR,IR和元素分析进行表征。生物分析表明,大多数合成的化合物对 蚜虫具有 中等的杀虫活性 。