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棉酚金刚烷胺Schiff碱的合成、光谱分析及PM6半经典计算
引用本文:杨健,李龙龙,陈刚,景振华. 棉酚金刚烷胺Schiff碱的合成、光谱分析及PM6半经典计算[J]. 广东药学院学报, 2010, 26(4): 358-361. DOI: 10.3969/j.issn.1006-8783.2010.04.009
作者姓名:杨健  李龙龙  陈刚  景振华
作者单位:1. 武汉大学人民医院,药学部,湖北武汉,430060
2. 武汉大学,药学院,湖北,武汉,430070
摘    要:目的解析棉酚金刚烷胺Schiff碱的结构。方法制备棉酚金刚烷胺Schiff碱,并采用红外光谱,二维核磁波谱技术和PM6半经典计算方法对其结构进行分析。结果光谱分析表明棉酚金刚烷胺Schiff碱具有烯胺-烯胺结构特征并归属了所有的碳原子和氢质子的化学位移;PM6研究表明棉酚金刚烷胺Schiff碱的烯胺-烯胺和亚胺-亚胺构型的生成热分别为-1160.00kJ.mol^-1和-1008.319kJ.moL^-1,其烯胺-烯胺构型在能量上更有利。结论棉酚金刚烷胺Schiff碱以烯胺-烯胺形式存在,分子内氢键的存在使烯胺-烯胺结构更稳定。

关 键 词:棉酚  金刚烷胺  Schiff碱  光谱分析  PM6半经典计算

Synthesis,spectroscopic analysis and PM6 studies of a new Schiff base derived from gossypol and adamantanine
YANG Jian,LI Long-long,CHEN Gang,JING Zhen-hua. Synthesis,spectroscopic analysis and PM6 studies of a new Schiff base derived from gossypol and adamantanine[J]. Academic Journal of Guangdong College of Pharmacy, 2010, 26(4): 358-361. DOI: 10.3969/j.issn.1006-8783.2010.04.009
Authors:YANG Jian  LI Long-long  CHEN Gang  JING Zhen-hua
Affiliation:1.Department of Pharmacy,Renmin Hospital of Wuhan University,Wuhan,Hubei 430060,China; 2.College of Pharmacy,Wuhan University,Wuhan,Hubei 430070,China)
Abstract:Objective To investigate the tautomeric form of the Schiff base of gossypol with adamantanine. Methods The Schiff base of gossypol with adamantanine was synthesized and identified by FT-IR,2D-NMR Spectroscopy and the PM6 semi classical calculation.Results The 1H and 13CNMR signals of the new Schiffbase were assigned.The calculated formation heat for N-enamine-N-enamine and N-imine-N-imine tautomeric forms are-1 160.00 kJ·moL-1and-1 008.319 kJ·moL-1 respectively,indicating that the former tautomer is more stable. Conclusion The Schiff base of gossypol with adamantanine exists in enamine-enamine tautomeric form,which was stabilized by the intramolecular hydrogen bonds.
Keywords:gossypol  adamantanine  Schiff base  spectroscopic analysis  PM6 calculation
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