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西安近代化学研究所,陕西 西安,710065
收稿日期:2013-12-29,
修回日期:2014-01-15,
纸质出版日期:2014-08-05
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陈键, 杜渭松, 高潮. 六(十二烷基)六苯并蒄的简便合成[J]. 液晶与显示, 2014,29(4): 508-514
CHEN Jian, DU Wei-song, GAO Chao. Simply synthesis of hexakis(4-dodecy)-peri-hexabenzocoronene[J]. , 2014,29(4): 508-514
为了提高六(十二烷基)六苯并蒄的收率,设计了一条新合成路线。该方法首先以二苯乙炔为初始原料,经过环化三聚和碘代得到六(4-碘苯基)苯,该中间体在钯催化下与1-溴代十二烷发生Kumada交叉偶联,最后环化氧化脱氢制得目标产物。借助于
1
HNMR和元素分析手段表明产物是目标化合物,并对该材料的光学性能、热学性能以及电化学性能进行了研究。该路线使目标物的总收率由27%提高到40.9%。与文献提供的方法相比,新法具有合成步骤少、纯化难度低、成本低廉等优点。
In order to improve the yield of hexakis(4-dodecy)-peri-hexabenzocoronene
a new synthetic approach is designed. First
hexa(4-iodophenyl)benzene is synthesized by cyclotrimerization of diphenylacetylene and then iodosubstitued. A palladium catalyzed Kumada cross-coupling reaction of 1-Bromododecane with that intermedium and cyclodehydrogenation are utilized in the last two reaction steps. The chemical structure of the target compound is characterized by
1
H NMR and elemental ana-lysis
and the optical
thermal and electrochemical properties of this HBC material are studied. The yield is improved to 40.9%
which showed 13% higher than that of the general method. This novel synthetic routine has advantages of simpler purification
fewer reaction steps and lower costing over that reported in the article before.
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