Synthesis and Herbicidal Activity of New Sulfonylurea Derivatives

Abstract

Abstract: In order to search for more environmental-benign sulfonylurea herbicides and study their structure-activity relationship, on the basis of a new sulfonylurea herbicide NK94827 {N-[(4'-methyl)pyrimidin-2'-yl]-2-methoxycarbonyl phenylsulfonylurea}, 18 novel sulfonylurea compounds modified at benzoic acid ester were synthesized. The structures of the target compounds were confirmed by ¹HNMR and elemental analysis. Preliminary herbicidal activity of these new sulfonylurea compounds was determined by rape disc assay and pot bioassay experiments. The results indicate that some compounds have good a herbicidal activity, and large lipophilic groups in ester moiety are unfavorable for the activity.

Key words: Sulfonylurea, Synthesis, Herbicidal activity

CLC Number:

O626.41

TrendMD:

LI Peng-Fei, MA Ning, WANG Bao-Lei, LI Zheng-Ming, WANG Su-Hua, LI Yong-Hong . Synthesis and Herbicidal Activity of New Sulfonylurea Derivatives[J]. Chem. J. Chinese Universities, 2005, 26(8): 1459.

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Synthesis and Herbicidal Activity of New Sulfonylurea Derivatives

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