A oligoamide with pyrazoline segment was designed and synthesized.Its structure was identified by IR,MS and 1HNMR.Fluorescence property of the target compoud in solution(DMF) was studied.The results showed that the st...A oligoamide with pyrazoline segment was designed and synthesized.Its structure was identified by IR,MS and 1HNMR.Fluorescence property of the target compoud in solution(DMF) was studied.The results showed that the strongest emission peak was at 442nm and the half peak width was 64nm and the fluorescence quantum yield(Φ) was 73.9%,which enhanced 13% compared to the simple pyrazoline structural unit′s Φ.展开更多
Starting from the basic stock,ethyl phenylacetate and aryl amines,1benzylformy14ary1 thiosemicarbazides were prepared through multistep reactions.The ringclosure of 1benzylformy14ary1 thiosemicarbazides ...Starting from the basic stock,ethyl phenylacetate and aryl amines,1benzylformy14ary1 thiosemicarbazides were prepared through multistep reactions.The ringclosure of 1benzylformy14ary1 thiosemicarbazides at the presence of hydrazine hydrate afforded the title compounds,3benzy14amino5arylamino1,2,4triazoles,with structures confirmed by elemental analysis,IR,1H and13C NMR spectra.展开更多
基金Foundation of the Key Laboratory of Pesticide Chemistry and Application,Ministry of Agriculture ( MOA ) ( No. MOAPCA200903)National Natural Science Foundation of China ( Nos. 20872071,20911120069 )+5 种基金Key Project of the Tianjin Natural Science Foundation ( 10JCZDJC17500 )The National Key Project for Basic Research ( 2010CB126105 )National Key Technology Research and Development Program ( 2011BAE06B05 )Common Specialized Research Fund of China Agriculture ( nyhyzx3-21,201103016 and 201003029)The Russian Foundation for Basic Research ( Nos RFBR 08-03-00376 a and RFBR /NNSF 08-03-92208 a)the Foundation of Achievements Transformation and Spreading of Tianjin Agricultural Science and Technology ( No. 201002250)
文摘A oligoamide with pyrazoline segment was designed and synthesized.Its structure was identified by IR,MS and 1HNMR.Fluorescence property of the target compoud in solution(DMF) was studied.The results showed that the strongest emission peak was at 442nm and the half peak width was 64nm and the fluorescence quantum yield(Φ) was 73.9%,which enhanced 13% compared to the simple pyrazoline structural unit′s Φ.
文摘Starting from the basic stock,ethyl phenylacetate and aryl amines,1benzylformy14ary1 thiosemicarbazides were prepared through multistep reactions.The ringclosure of 1benzylformy14ary1 thiosemicarbazides at the presence of hydrazine hydrate afforded the title compounds,3benzy14amino5arylamino1,2,4triazoles,with structures confirmed by elemental analysis,IR,1H and13C NMR spectra.
