A convenient method for preparing rigid-core ionic liquid crystals

被引:25
作者
Fouchet, Julien [1 ]
Douce, Laurent [1 ]
Heinrich, Benoit [1 ]
Welter, Richard [2 ]
Louati, Alain [3 ]
机构
[1] Univ Strasbourg, CNRS, DMO, UMR 7504,Inst Phys & Chim Mat Strasbourg, F-67034 Strasbourg 2, France
[2] Univ Strasbourg, CNRS, UMR 7177, LC003,Lab DECOMET, F-67000 Strasbourg, France
[3] Ecole Natl Super Chim, Lab Electrochim Analyt, F-68093 Mulhouse, France
关键词
imidazolium; ionic liquid crystals; Ullman reaction; IMIDAZOLIUM SALTS; MESOMORPHIC PROPERTIES;
D O I
10.3762/bjoc.5.51
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An efficient, solvent free method for the N-arylation of imidazole by 1-(dodecyloxy)-4-iodobenzene using Cu(II)-NaY as catalyst and K2CO3 as base is reported. By this synthetic approach, mesomorphic 3-[4-(dodecyloxy)phenyl]-1-methyl-1H-imidazol-3-ium iodide was synthesized in a two-step procedure, and its mesomorphism has been fully investigated by polarised optical microscopy, differential scanning calorimetry and X-ray diffraction. In addition its lamellar crystal structure, electrochemical behaviour and UV (absorption and emission) properties are reported.
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页数:10
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