Chemical Research in Chinese Universities ›› 2016, Vol. 32 ›› Issue (3): 396-401.doi: 10.1007/s40242-016-5480-4

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Design, Synthesis and Herbicidal Activity of Novel Sulfonylureas Containing Tetrahydrophthalimide Substructure

HUA Xuewen, ZHOU Sha, CHEN Minggui, ZHANG Dongkai, LIU Ming, LIU Jingbo, WU Changchun, LIU Yang, LI Yonghong, LI Zhengming   

  1. State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Nankai University, Tianjin 300071, P. R. China
  • Received:2015-12-10 Revised:2016-02-29 Online:2016-06-01 Published:2016-05-16
  • Contact: LI Zhengming E-mail:nkzml@vip.163.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.21272129) and the Syngenta Doctorate Scholarship Program of China.

Abstract:

To develop novel sulfonylurea herbicides, a series of chlorsulfuron derivatives was designed and synthesized through introducing tetrahydrophthalimide substructure taken from protoporphyrinogen IX oxidase(PPO) inhibitors onto the critical 5-position of the classical benzene ring. The structures of title compounds were confirmed by infrared spectroscopy, ultraviolet spectroscopy, 1H and 13C NMR spectrometry, mass spectrometry and elemental analysis. In addition, the crystal structure of compound II-5 was further determined by X-ray diffraction analysis. Bioassay results showed that individual compounds exhibited good herbicidal activities, especially compound II-8, which displayed 100% inhibition rate against Echinochloa crusgalli at 150 g/ha(1 ha=104 m2) with the method of foliage spray in the pot experiment.

Key words: Sulfonylurea herbicide, Tetrahydrophthalimde, Herbicidal activity