7135-02-6Relevant articles and documents
Synthesis, crystal structure and herbicidal activity of a series of [1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide compounds
Ma, Yi-Chao,Yu, Ying-Hui,Hou, Guang-Feng,Huang, Ji-Han,Gao, Jin-Sheng
, p. 829 - 843 (2016/07/06)
With the aim of obtaining efficient, safe and environmentally friendly green herbicide, a series of [1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide compounds (8a-8f) were synthesized by reacting 2-amino-5,7-(bis-substituted)- 1,2,4-triazolo[1,5-a]pyrimidine (4a and 4b) with 2-substituted-6-trifluoromethyl-benzenesulfonyl chloride (7a-7c). And their structures were characterized by H-NMR, C-NMR, HRMS, FTIR, single-crystal X-ray diffraction, elemental analysis. Moreover, their herbicidal activities against six species of weeds were evaluated. Three target compounds such as 8a, 8c and 8e, exhibited significant postemergence herbicidal activity against some common dicotyledons and monocotyledons under different concentrations. The structure and activity relationship is discussed based on the herbicidal performances of the compounds with different substituents. The investigation results indicated that the above structures could serve as lead compounds for the development of new herbicides.
Synthesis and reactions of [1,2,4]triazolo[1,5-a]pyrimidinium-2-aminides
Bishop, Brian C.,Marley, Hugh,Preston, Peter N.,Wright, Stanley H. B.
, p. 1527 - 1532 (2007/10/03)
[1,2,4]Triazolo[1,5-a]pyrimidinium-2-amides were synthesised by treating an appropriate triazolo[1,5-a]pyrimidinium salt with sodium hydroxide or from the reaction of 4-alkyl-3,5-diamino-1,2,4-triazoles with pentane-2,4-dione or 1,1,3,3-tetramethoxypropan
Sulfonamides derived from substituted 2-amino-1,2,4-triazolo (1,5-a) pyrimidines and compositions and methods of controlling undesired vegetation
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, (2008/06/13)
Novel compounds, e.g., N-(5,7-dimethyl-1,2,4-triazolo [1,5-a]pyrimidin-2-yl)-2-thiophene sulfonamide and their compositions and use in the control of weeds.