| 含二苯并-18-冠-6和二苯并-14-冠-4的酰胺型液晶冠醚的合成 |
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| 引用本文： | 张晓静,张淑媛,郑世军,王志玲,李自法.含二苯并-18-冠-6和二苯并-14-冠-4的酰胺型液晶冠醚的合成[J].有机化学,2005,25(6):673-678. |
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| 作者姓名： | 张晓静 张淑媛 郑世军 王志玲 李自法 |
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| 作者单位： | 1. 郑州大学材料工程学院,郑州,450052
2. 郑州大学化学系,郑州,450052 |
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| 基金项目： | 国家自然科学基金，河南省自然科学基金，河南省教育厅自然科学基金 |
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| 摘 要： | 以4-(4-正烷氧基联苯基)-4-碳酰氧基]苯甲酸、二氨基二苯并-18-冠-6和二氨基二苯并-14-冠-4为中间体, 通过溶液缩合反应, 合成了两个系列酰胺型液晶冠醚. 并用元素分析、核磁共振、红外光谱、基质辅助激光解析电离飞行时间质谱、示差扫描量热法和偏光显微镜对其进行了表征. 随分子末端烷氧基碳原子数增加, 化合物4I, 4II, 6I和6II的熔点(Tm)和液晶态的清亮点(Ti)逐渐降低, 近晶相范围递增.
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| 关 键 词： | 酰胺型 冠醚 热致性液晶 合成 |
| 收稿时间： | 2004-6-10 |
| 修稿时间： | 2004年6月10日 |
Synthesis of Amido Type Liquid Crystalline Crown Ethers Containing Dibenzo-18-crown-6 and Dibenzo-14-crown-4 Units |
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| ZHANG,Xiao-Jing,ZHANG,Shu-Yuan,ZHENG Shi-Jun,WANG,Zhi-Ling,LI,Zi-Fa.Synthesis of Amido Type Liquid Crystalline Crown Ethers Containing Dibenzo-18-crown-6 and Dibenzo-14-crown-4 Units[J].Chinese Journal of Organic Chemistry,2005,25(6):673-678. |
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| Authors: | ZHANG Xiao-Jing ZHANG Shu-Yuan ZHENG Shi-Jun WANG Zhi-Ling LI Zi-Fa |
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| Institution: | (College of Materials and Engineering, Zhengzhou University, Zhengzhou 450052)(Department of Chemistry, Zhengzhou University, Zhengzhou 450052) |
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| Abstract: | Two series of amido type liquid crystalline crown ethers were synthesized using the intermedi- ates of 4-4'-(n-alkoxyl)biphenyl-4-carboxyl]benzoic acid, diaminodibenzo-18-crown-6 and diaminodiben- zo-14-crown-4. Their structures and properties were characterized by elemental analysis, 1H NMR, IR, MALDI -TOF-MS, DSC and polarizing optical microscopy with a heating stage. For compounds 4I, 4II, 6I and 6II, both melting point Tm and isotropization temperature Ti were decreased with the increase of the carbon numbers in the end alkoxy groups. However, the smectic phase temperature range was increased gradually. |
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| Keywords: | amide crown ether thermotropic liquid crystal synthesis |
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