应用化学 ›› 1994, Vol. 0 ›› Issue (5): 101-103.

• 研究论文 • 上一篇    下一篇

昆虫几丁质抑制剂苯甲酰基苯脲类中苯甲酰基邻位取代基团对杀虫活性的影响

钱朴, 孙大庆, 曾润生, 陈克潜   

  1. 苏州大学化学系 苏州 215006
  • 收稿日期:1993-10-27 修回日期:1994-05-11 出版日期:1994-10-10 发布日期:1994-10-10
  • 基金资助:
    国家自然科学基金资助项目

The Effect of Ortho Substituents in the Benzoyl Moiety on the Insecticidal Activity of Benzoylphenylureas

Qian Pu, Sun Daqing, Zen Runsheng, Chen Keqian   

  1. Department of Chemistry, University of Suzhou, Suzhou 215006
  • Received:1993-10-27 Revised:1994-05-11 Published:1994-10-10 Online:1994-10-10

摘要: 采用分子力学方法对苯甲酰基脲类昆虫几丁质抑制剂进行计算,发现苯甲酰基中的苯环与相连酰胺平面的夹角影响该类药物的杀虫活性,其中夹角在40°左右杀虫活性最高。说明了分子中的构象影响杀虫活性。而这方面结果用传统的QSAR法难以得到,本计算结果较好的说明了苯甲酰基部分邻位取代基中2,6-二氟>2-氯>2,6-二氯>2-氟的杀虫活性次序。

关键词: 昆虫几丁质抑制剂, 苯甲酰基脲类, 杀虫活性, 分子力学计算

Abstract: The effects of ortho substituents in the benzoyl moiety of benzoylphenylureas are studied by molecular mechanics method.The molecular mechanics caiculation shows that the angle between -CONH- plane and phenyl ring appears to influence the insecticidal activity of benzoylphenylureas.

Key words: chitin systhesis inhibitor, benzoylphenylurea, insecticidal activity, molecular mechanics calculation