Wang Jian-ju
2015
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
A novel fused heterocylic aromatic compound,1,1-bis(benzoimidazole-2-yl)-2-(quinoxaline-2-yl) ethylene(4) with yield of 78. 61%,was synthesized by Knoevenagel reaction using o-phenylenediamine,fructose and malonic acid as the main raw materials. The structure was characterized by1 H NMR,IR and elemental analysis. The properties of 4 were investigated by UV-Vis,FL and TG/DTA. The results showed that λmaxof 4 were 259 nm and 383 nm; λemwas 495 nm under excitation of 320 nm; The melting point and the initial decomposition temperature were 320 ℃ and 402 ℃,respectively.