7135-02-6Relevant academic research and scientific papers
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
A unique fourfold intramolecular hydrogen bonding stabilises the structure of trans-bis(2-amino-5,7-dimethyl[1,2,4]triazolo[1,5-a]pyrimidine- N3)aquatrichlororuthenium(III) monohydrate
Velders, Aldrik H.,Ugozzoli, Franco,Biagini-Cingi, Marina,Manotti-Lanfredi, Anna M.,Haasnoot, Jaap G.,Reedijk, Jan
, p. 213 - 215 (2007/10/03)
The X-ray structure of the potential antitumour complex trans- [RuCl3(H2O)(admtp)2] · H2O (admtp = 2-amino-5,7- dimethyl[1,2,4]triazolo[1,5-a]pyrimidine) shows unique and very interesting intramolecular hydrogen-bonding properties with the non-bridgehead pyrimidinic nitrogen atom of admtp acting as hydrogen acceptor and the amino group acting as hydrogen donor.
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.
