Synthesis, Crystal Structure and Herbicidal Activity of Methyl(E)-α-(Methoxyimino)-2-((4-(3-chloro-5-(trifluoromethyl)-pyridine-2-yl)phenoxy)methyl)benzeneacetate
摘要：The title compound methyl(E)-α-(methoxyimino)-2-((4-(3-chloro-5-(trifluoromethyl) pyridine-2-yl)phenoxy)methyl)benzeneacetate(C23 H18 ClF3 N2 O4) has been synthesized and structurally characterized by 1 H and 13 C NMR, and HRMS. Its absolute molecular configuration was investigated by X-ray crystallography. The crystal crystallizes in monoclinic system, space group P21/c with a = 15.0928(7), b = 19.6070(10), c = 7.5535(5) A,β= 98.176(5)°, V = 2212.6(2)A3, Z =4, Dc = 1.438 g/cm^3, F(000)= 984,μ(Mo Kα)= 0.231 mm-1, the final R = 0.0619 and wR = 0.1681 with 4034 observed reflections with I > 2σ(I). The title compound has significant inhibitory rate against broadleaf weeds. They are all 100% under the dose of 37.5 g.a.i/ha, which was better than mesotrione.
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