Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (10): 2335.

• Preface • Previous Articles     Next Articles

Synthesis, Crystal Structure and Herbicidal Activity of Aurone Derivatives

LIU Bin, ZHANG Min, XIE Long-Guan, LI Yong-Hong, XU Xiao-Hua*   

  1. State Key Laboratory of Elemento-organic Chemistry, Elemento-organic Chemistry Institute, Nankai University, Tianjin 300071, China
  • Received:2010-11-01 Revised:2011-01-06 Online:2011-10-10 Published:2011-09-11
  • Contact: XU Xiao-Hua E-mail:xiaohuaxu@nankai.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20872070)资助.

Abstract: Pesticides based on natural products are attracting more and more attentions. They are low-toxic, readily degradable and low drug-resistant. This is an important field for developing new pesticides. Previous effords were mainly focused on developing new insecticides and bactericides. So there are few commercial herbicides originated from natural products. Aurones are natual product existing in fruits and flowers of certain plants. It was found that some of them showed certain herbicidal activity. Herein, seventeen aurones derivatives were synthesized. X-ray single crystal diffraction showed that the conformation of its double bond was Z. And these compounds were assayed for their inhibiting activity against Echinochloa crusgalli and B rassica cam pestris. Results indicated that they displayed modest inhabitation toward B rassica cam pestris, but bad toward Echinochloa crusgalli. Under 100 μg/mL, inhibiting rate of compoud 15 on B rassica cam pestris was up to 88.5%, and it reached to 81.3% given by subsequent rescreening at 10 μg/mL. Electronic property on ring A and LogP value of the whole molecular play a important role in maintainning its activiy. Compound 15 is a good leading structure for further optimization.

Key words: Aurone derivative, Herbicidal activity, Crystal structure

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