A series of novel 2-(3,3-dichloro-2-propenyloxy)phenyl-containing phthalic acid diamide derivatives (3I-3IV) were designed and synthesized. Their chemical structures were characterized by 1H NMR, mass spectrometry and elemental analyses. The insecticidal activities of these compounds against Plutella xylostella were evaluated at the concentration of 100 mg/L. Their insecticidal activity is effected by the substituent on the aliphatic amide moiety, which follows the trend of H (3I) > -SCH3 (3II) and -S(O)2CH3 (3IV) > -OCH3 (3III). Meanwhile, when the substituent (-CH3, -CF3, -Cl) on the aniline ring was introduced to the 3,3-dichloro-2-propenyloxy group in different positons, the meta-derivatives exhibit better insecticidal activity than the para-derivatives. Compared with the compounds bearing 3,3-dichloro-2-propenyloxy group on the 2-positon of the aniline ring, the compounds with that substituent on the 4-positon exhibit almost the same insecticidal activity trend but much better bioactivity.
                                    设计并合成了一系列新型 2-(3,3-二
氯-2-
丙烯氧基)苯基
邻苯二甲酸二酰胺衍
生物(3I-3IV)。通过 1H NMR、质谱和元素分析对它们的
化学结构进行了表征。在 100 mg/L 的浓度下,对这些化合物对木虱的杀虫活性进行了评估。它们的杀虫活性受脂肪族酰胺分子上取代基的影响,其变化趋势为 H (3I) > -S    (3II) 和 -S(O)2    (3IV) > -O    (3III)。同时,当
苯胺环上的取代基(-
CH3、-
CF3、-Cl)被引入到 3,3-二
氯-2-
丙烯氧基的不同位置时,元衍
生物比对位衍
生物表现出更好的杀虫活性。与
苯胺环 2-正位上带有 3,3-二
氯-2-
丙烯氧基的化合物相比,4-正位上带有该取代基的化合物表现出几乎相同的杀虫活性趋势,但
生物活性要高得多。