5,11-二乙基吲哚[3,2-b]咔唑的合成及光谱特性

The Modified Synthesis and Properties Study of 5,11-Diethyl-5,11- Dihydroindolo [3,2-b] Carbazole

以苯肼为原料,与1,4-环己二酮反应,制得环己胺-1,4-二酮-二苯腙,再在硫酸、醋酸强酸性环境下闭环制得吲哚[3,2-b]咔唑,经N-烷基化反应制得乙基取代基的吲哚[3,2-b]咔唑衍生物.本文合成方法使其产率由参考文献的64%提升到80%,其结构经1,H NMR表征,并初步研究了该化合物的光谱性质.

Using phenylhydrazine and 1,4-cyclohexanedione as raw materials, cyclohexane-l,4-dione bis （phenylhydra- zone） was synthesized. Then, in the presence of sulfuric acid and acetic acid, indole [3,2-b] carbazole was obtained through cyclization. Finally, 5,11-Diethyl-5,11 -dihydroindolo[3,2-b] carbazole was synthesized through N-alkylation reaction. This method increased the reaction yield from 64% in the reference to 80%. The structures were characterized by lH NMR and the fluorescent spectra were studied.