| 几种胆甾醇酯的合成与表征 |
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| 引用本文： | 鞠秀萍,何林江,程晓红.几种胆甾醇酯的合成与表征[J].云南大学学报(自然科学版),2007,29(2):190-193. |
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| 作者姓名： | 鞠秀萍 何林江 程晓红 |
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| 作者单位： | 云南大学,化学科学与工程学院,教育部化学自然资源药物化学重点实验室,云南,昆明,650091 |
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| 基金项目： | 国家自然科学基金，云南省自然科学基金 |
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| 摘 要： | 从相应的羧酸衍生物出发,采用DCC,DMAP酯化的方法合成了4种胆甾醇酯:多取代苯甲酸胆甾醇酯5,6,7及联苯丁酮酸胆甾醇酯9.偏光显微镜(POM)及示差扫描量热法(DSC)研究表明,多取代苯甲酸胆甾醇酯5,6,7为具有胆甾相的液晶分子.9为1种新型的胆甾醇酯化合物,其结构均未见文献报道.
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| 关 键 词： | 胆甾醇酯 合成 液晶 |
| 文章编号： | 0258-7971(2007)02-0190-04 |
| 修稿时间： | 2006年5月17日 |
Synthesis and mesophase behavior of several cholesteryl esters |
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| JU Xiu-ping,HE Lin-jiang,CHENG Xiao-hong.Synthesis and mesophase behavior of several cholesteryl esters[J].Journal of Yunnan University(Natural Sciences),2007,29(2):190-193. |
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| Authors: | JU Xiu-ping HE Lin-jiang CHENG Xiao-hong |
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| Institution: | Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemistry and Material Engineering, Yunnan University, Kunming 650091, China |
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| Abstract: | Starting from the corresponding carboxylic acids,via esterification under the catalysis of DCC and DMAP,four cholesteryl esters were obtained,namely multisubstituted cholesteryl benzonates 4-CnH2n 1O3,5-(Br)2-C6H2-COOCh],(n=5,7,9) 5,6,7 and 4-biphenyl-4-yl-4-oxo-butyric acid cholesteryl ester 9.By investigation of DSC and polarized microscope,5,6,7 show narrow cholesteric mesophase,and are considered to belong to cholesteric liquid crystals.9 is a new compond showing no liquid crystalline behavior. |
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| Keywords: | cholesteric mesophase synthesis liquid crystal |
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