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Synthesis,Crystal Structure and Insecticidal Activity of N-(pyridin-2-ylmethyl)-1-phenyl-1,4,5,6,7,8-hexahydrocyclohepta[c]pyrazole-3-carboxamide 被引量:1
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作者 邓希乐 周小毛 +2 位作者 王赞永 芮昌辉 杨新玲 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2018年第4期551-556,共6页
The title compound N-(pyridin-2-ylmethyl)- 1-phenyl- 1,4,5,6,7,8-hexahydrocy-clohepta[c]pyrazole-3-carboxamide 5 (C21I-I22N40, Mr = 346.42) has been synthesized andstructurally characterized by IR, 1H NMR, 13C NMR... The title compound N-(pyridin-2-ylmethyl)- 1-phenyl- 1,4,5,6,7,8-hexahydrocy-clohepta[c]pyrazole-3-carboxamide 5 (C21I-I22N40, Mr = 346.42) has been synthesized andstructurally characterized by IR, 1H NMR, 13C NMR, H RMS and single-crystal X-raydiffraction. The crystal crystallizes in monoclinic system, space group P21/n with a = 8.668(2),b = 22.236(4), c = 9.539(2) A, β = 108.68(3)°, V = 1786.4(7)/k3, Z = 4, Dx= 1.288 g/cm3,F(000) = 736,μ(MoKa) = 0.649 mm^-1, the final R = 0.0354 and wR = 0.0933 with 3234observed reflections with I 〉 2σ(/). The benzene and pyrazole rings are nearly coplanar with adihedral angle of 50.977(46)°. The dihedral angle between the central pyrazole and pyridinerings is 11.688(46)°. No classical hydrogen bonds were found in the molecules. Two adjacentmolecules in crystal packing of compound 5 were linked by two intramolecularhydrogen-bonding interactions C(15)-H(15)…O(1) to generate a stable structure. Compound 5had weak insecticidal activity against the diamondback moth (Plutella xylostella), butexhibited good activity against cotton bollworm (Helicoverpa armigera). 展开更多
关键词 SYNTHESIS bicyclic pyrazole amide crystal structure insecticidal activity
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