Chinese Journal of Organic Chemistry ›› 2024, Vol. 44 ›› Issue (5): 1584-1591.DOI: 10.6023/cjoc202311015 Previous Articles     Next Articles

ARTICLES

新型含(卤代)烷氧基类双酰胺化合物的合成、杀虫活性及构效关系研究

刘吉永a, 吴明慧b, 相君成c, 庞怀林b, 李斌a,*(), 吕亮b,*()   

  1. a 沈阳农业大学植物保护学院 沈阳 110866
    b 南通泰禾化工股份有限公司 江苏南通 226407
    c 上海晓明检测技术服务有限公司 上海 200335
  • 收稿日期:2023-11-14 修回日期:2023-12-13 发布日期:2024-01-18

Synthesis, Insecticidal Activities, and Structure-Activity Relationship Studies of Novel Diamide Compounds Containing (Halogenated) Alkoxy Group

Jiyong Liua, Minghui Wub, Juncheng Xiangc, Huailin Pangb, Bin Lia(), Liang Lüb()   

  1. a Plant Protection College, Shenyang Agricultural University, Shenyang 110866
    b CAC Nantong Chemical Co., Ltd., Nantong, Jiangsu 226407
    c Shanghai Xiaoming Testing Technology Service Co., Ltd., Shanghai 200335
  • Received:2023-11-14 Revised:2023-12-13 Published:2024-01-18
  • Contact: *E-mail: liang_lv@cacch.com; 13700021632@163.com

In order to discover new pesticide with novel structure, good activity and environmental friendliness, a series of new diamide compounds containing (halogenated) alkoxy group were designed and synthesized through introducing (halogenated) alkoxy group based on the structure of cyproflanilide. Their structures were confirmed by 1H NMR, 13C NMR and HRMS. The bioassay results showed that most of the compounds exhibit excellent insecticidal activity against Plutella xylostella. Such as N-(2-bromo-6-(difluoromethoxy)-4-(perfluoropropan-2-yl)phenyl)-3-(N-(cyclopropylmethyl)-4-fluorobenz- amido)-2-fluorobenzamide (4a), N-(2-bromo-4-(perfluoropropan-2-yl)-6-(trifluoromethoxy)phenyl)-3-(N-(cyclopropylmethyl)- 4-fluorobenzamido)-2-fluorobenzamide (4b), N-(2-bromo-6-(difluoromethoxy)-4-(perfluoropropan-2-yl)phenyl)-3-(N-(cyclo- propylmethyl)benzamido)-2-fluorobenzamide (4h), N-(2-bromo-6-(difluoromethoxy)-4-(perfluoropropan-2-yl)phenyl)-3-(4- cyano-N-(cyclopropylmethyl)benzamido)-2-fluorobenzamide (4j)~N-(3-((2-bromo-6-(difluoromethoxy)-4-(perfluoropropan- 2-yl)phenyl)carbamoyl)-2-fluorophenyl)-N-(cyclopropylmethyl)isonicotinamide (4o), N-(3-((2-bromo-6-(difluoromethoxy)- 4-(perfluoropropan-2-yl)phenyl)carbamoyl)-2-fluorophenyl)-N-(cyclopropylmethyl)-2,4-difluorobenzamide (4q) and N-(3-((2- bromo-6-(difluoromethoxy)-4-(perfluoropropan-2-yl)phenyl)carbamoyl)-2-fluorophenyl)-N-(cyclopropylmethyl)-2-fluoroiso-nicotinamide (4t) showed 100% mortality at 1 mg/L. Moreover, compound 4a not only has good insecticidal activities against Plutella xylostella and Chilo suppressalis close to cyproflanilide, but also shows better activities against Aphis craccivora and Tetranychus cinnabarinus than cyproflanilide, exhibiting a broader insecticidal spectrum. The field trials of compound 4a are ongoing.

Key words: diamide compounds, synthesis, insecticidal activity, structure-activity relationship