| MTPEA非对映酰胺核磁共振化学位移不等性的研究 |
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| 引用本文： | 姚立红,苏长安,李文,王华.MTPEA非对映酰胺核磁共振化学位移不等性的研究[J].辽宁大学学报(自然科学版),1997(3). |
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| 作者姓名： | 姚立红 苏长安 李文 王华 |
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| 作者单位： | 辽宁大学化学系(姚立红)，辽宁大学分析测试中心(苏长安)，沈阳药科大学测试中心(李文)，河南大学化学化工学院(王华) |
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| 摘 要： | 本文通过四个光学活性羧酸作为手性衍生化试剂研究了２－甲氧基－２－三氟甲基－２－苯基乙胺（ＭＴＰＥＡ）非对映酰胺中某些特征基团在不同ＮＭＲ中的化学位移不等性．ＭＴＰＥＡ非对映酰胺中所选择的探针基团在１Ｈ、１９Ｆ和１３ＣＮＭＲ中的化学位移差值分别为：０．０２～０．１６４（△δＯＭｅ）；０．０９５～０．５９９（△δＣＦ３）；０．３９～０．７４（△δＮＨＣＨ２）ｐｐｍ．
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| 关 键 词： | 非对映酰胺 化学位移不等性 化学位移差值 |
Studies of Tracking Choline Synthesis Temperature by NMR |
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| Tong Jian Xing Zhiqiang Lu Sheng Analysis & Test Center of Liaoning University,Shenyang Yang Xiaoqiu Shenyang Normal College,Shenyang.Studies of Tracking Choline Synthesis Temperature by NMR[J].Journal of Liaoning University(Natural Sciences Edition),1997(3). |
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| Authors: | Tong Jian Xing Zhiqiang Lu Sheng Analysis & Test Center of Liaoning University Shenyang Yang Xiaoqiu Shenyang Normal College Shenyang |
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| Institution: | Tong Jian Xing Zhiqiang Lu Sheng Analysis & Test Center of Liaoning University,Shenyang 110036 Yang Xiaoqiu Shenyang Normal College,Shenyang 110031 |
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| Abstract: | Because of the peculiar property of choline, synthesized choline decomposes easily, which makes it difficult to choice a synthesis temperature by classical method. We have studied the choice of a best temperature condition of synthesis in detail by system of NMR variation temperature. The results show that this method is speedy, accurate and simple. |
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| Keywords: | Choline NMR Integral area |
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