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| 混合多卤甲烷与金属镁反应产生溴氯卡宾及其反应机理的研究 | |
| 引用本文： | 林海霞,徐良衡,黄乃聚. 混合多卤甲烷与金属镁反应产生溴氯卡宾及其反应机理的研究[J]. 化学学报, 1996, 54(8): 819-825 |
| 作者姓名： | 林海霞 徐良衡 黄乃聚 |
| 作者单位： | 温州师范学院化学系;复旦大学化学系 |
| 摘 要： | 应用CHBr3/CHCl3或CHBr3/CCl4和金属镁在一般的Grignard反应条件下与烯烃反应, 制备偕溴氯环丙烷衍生物。该反应原料易得, 反应条件温和, 产率良好, 后处理方便, 是制备偕溴氯环丙烷衍生物的一种简便的新方法。文中研究了上述反应的单电子转移和自由基链循环的复杂反应机理。 |
| 关 键 词： | 甲烷P 镁 反应机理 红外分光光度法 碳烯 质子磁共振谱法 电子转移 |
Studies on the generation of dihalocarbene and the reaction mechanism of mixed polyhalomethane with magnesium |
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| LIN HAIXIA,XU LIANGHENG,HUANG NAIJU. Studies on the generation of dihalocarbene and the reaction mechanism of mixed polyhalomethane with magnesium[J]. Acta Chimica Sinica, 1996, 54(8): 819-825 | |
| Authors: | LIN HAIXIA XU LIANGHENG HUANG NAIJU |
| Abstract: | The reaction of CHBr3/CHCl3 or CHBr3/CCl4 with magnesium under general Grignard reaction condition is studied and is for the first time found to produce dihalocarbene which is trapped with some different olefins to prepare the gem-dihalocyclopropane derivatives in good yields. The reaction having advantages of easy work-up, mild reaction condition and high yield is a novel convenient method for the generation of dihalocarbene. A possible mechanism (Single Electron Transfer, SET) is described. The effect of different reaction condition on the reaction is studied. |
| Keywords: | METHANE P MAGNESIUM REACTION MECHANISM INFRARED SPECTROPHOTOMETRY CARBENE PROTON MAGNETIC RESONANCE SPECTROMETRY |
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