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含取代嘧啶环的苯磺酰脲的合成和生物活性测定 总被引:19,自引:1,他引:18
报道了12种含不同取代嘧啶环的苯磺酰脲的合成及初步的生物活性测定结果,其中10种为新化合物,结构经^1HNMR,IR和元素分析等证实。 相似文献
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A novel compound N-(4-methylbenzyl)-4-(3-fluorophenyl)-4-piperidinol hydrochloride has been synthesized and its structure (C19H23ClFNO, Mr = 335.83) was characterized by elemental analysis, IR, ^1H NMR, MS and single-crystal X-ray diffraction analyses. The crystal belongs to the triclinic system, space group P1 with a = 7.2163(6), b = 10.7905(9), c = 12.2651(10) A, α = 109.576(2),β = 98.407(2),γ= 95.956(2)°, V= 878.14(13)A3, Z = 2, Dc = 1.270 g/cm^3,μ = 0.231 mm^-1, F(000) = 356, S = 1.100, the final R = 0.0525 and wR = 0.1425 for 3206 unique reflections (Rint = 0.0140) with 2736 observed ones (I 〉 2σ(I)). The piperidine ring exhibits a chair conformation. The dihedral angle made by the methyl- and fluoro-substituted benzene rings is 66.84(7)°. There are some intra- and intermolecular hydrogen bonding interactions among the molecules, which stabilize the whole crystal structure. The preliminary biological activity tests indicate good herbicidal activity for the title compound, in particular against the roots of some tested plants (such as Brassica campestris L. and Echinochloa crusgallis L.). 相似文献
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