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A pair of E/Z-isomers of 2-phenyl-6,7-dihydrobenzofuran-4(5H)-one O-cyanomethyl oxime,C16H14N2O2,as potential drugs for treating peptic ulcer and other acid-related diseases have been synthesized and characterized by IR,MS and NMR spectra.Meanwhile,the crystal of IIIa was obtained and determined by X-ray single-crystal diffraction.Crystal data: monoclinic system,space group P21 /c,a = 8.423(8),b = 19.596(16),c = 8.770(8),β = 107.750(12)°,V = 1379(2)3,Z = 4,F(000) = 560,Dc = 1.283 g/cm3,μ = 0.086 mm 1,R = 0.0681 and wR = 0.2029 for 14472 independent reflections(Rint = 0.0782) and 2428 observed ones(I 2σ(I)). 相似文献
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Compound 1, N-methyl-N-((2-(p-tolyl)quinolin-4-yl)methyl)aniline (C24H22N2), as a potential drug for the treatment of acid-related diseases has been synthesized via palladium-catalyzed intramolecular hydroarylation. The compound was characterized by MS and NMR spectra. Meanwhile, the crystal of 1 was obtained and determined by X-ray single-crystal diffraction. Crystal data: triclinic system, space group Pī, a = 5.548(5), b = 11.545(10), c = 14.546(12), α = 90.427(15), β = 90.727(14), γ = 101.099(16)°, V = 914.1(13)3, Z = 2, F(000) = 360, Dc = 1.230 g/cm3, μ = 0.072 mm-1, R = 0.0564 and wR = 0.1616 for 9768 independent reflections (Rint = 0.0447) and 3003 observed ones (I > 2σ(I)). 相似文献
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以弱色散特性的扇形金属-介质夹持杆螺旋线慢波结构的Ka波段行波管作为研究对象,进行了互作用特性仿真研究。采用螺距跳变和磁场跳变技术进一步提高了该行波管在工作频带的输出功率和电子效率,并解决了电子注散焦问题。设计结果表明:当工作电压为9 kV、工作电流为210 mA时,行波管在24~40 GHz整个频带内,各频点的增益在37.7~48.7 dB之间,电子效率在15.18%~19.42%之间,输出功率大于286 W。此结果较之均匀周期的设计结果,电子效率增幅在4.19%以上,输出功率增长率在4.3%以上,尤其在26~37 GHz范围内,电子效率增幅达到了11.8%以上,输出功率增长率达11.9%。 相似文献
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