1210309-74-2Relevant academic research and scientific papers
Design, synthesis and herbicidal activity study of aryl 2,6-disubstituted sulfonylureas as potent acetohydroxyacid synthase inhibitors
Wei, Wei,Zhou, Shaa,Cheng, Dandan,Li, Yuxin,Liu, Jingbo,Xie, Yongtao,Li, Yonghong,Li, Zhengming
supporting information, p. 3365 - 3369 (2017/07/07)
A series of sulfonylurea derivatives containing a 2,6-disubstituted aryl moiety were designed, synthesized and evaluated for their herbicidal activities. Most of these compounds showed excellent inhibitory rates against both monocotyledonous and dicotyledonous weeds, especially 10a, 10h and 10i. They exhibited equivalent or superior herbicidal efficiency than commercial chlorsulfuron at the dosage of 15?g/ha and the preliminary SAR was summarized. In order to illuminate the molecular mechanism of several potent compounds, their apparent inhibition constant (Kiapp) of Arabidopsis thaliana acetohydroxyacid synthase (AHAS) were determined and the results confirmed that these compounds were all potent AHAS inhibitors. 10i have a Kiapp of 11.5?nM, which is about 4 times as potent as chlorsulfuron (52.4?nM).
Synthesis of isomeric fluoronitrobenzene-sulfonyl chlorides
Zhersh, Sergey,Lukin, Oleg,Matvienko, Vitaly,Tolmachev, Andrey
experimental part, p. 5982 - 5986 (2010/10/01)
The synthesis of five hitherto unknown isomeric fluoronitrobenzenesulfonyl chlorides is described. The compounds are prepared from difluoronitrobenzenes by a two-step procedure. In the first step the starting compounds undergo a regioselective reaction with phenylmethanethiol giving rise to the corresponding thioethers. The oxidative cleavage of the latter with chlorine results in the sulfonyl chlorides in good yields. One example of a threefold sequential functionalization of 2-fluoro-6-nitrobenzenesulfonyl chloride showing the synthetic utility of the title compounds is provided.
