| 4,6,7,8-四氢-4,6-二芳基氧杂吖庚因[4,3-c]斯德酮顺反异构体的转化 |
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| 引用本文： | 张站斌,艾林. 4,6,7,8-四氢-4,6-二芳基氧杂吖庚因[4,3-c]斯德酮顺反异构体的转化[J]. 东北师大学报(自然科学版), 2006, 38(1): 63-66 |
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| 作者姓名： | 张站斌 艾林 |
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| 作者单位： | 北京师范大学化学学院,北京,100875 |
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| 基金项目： | 国家自然科学基金资助项目(50473047) |
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| 摘 要： | 用3-(3-苯基-3-羟基丙基)斯德酮和芳香醛反应合成了cis-和trans-4,6,7,8-四氢-4,6-二芳基氧杂吖庚因[4,3-c]斯德酮,这两种异构体在通常情况下都是稳定的,可以用柱层析进行分离提纯.在质子酸催化下,两种异构体均可以发生异构化,得到cis-和trans-异构体混合物.顺反式异构体的比例可以用1H NMR进行测定.
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| 关 键 词： | 氧杂吖庚因[4 3-c]斯德酮 顺反异构体 芳香醛异构化反应 |
| 文章编号： | 1000-1832（2006）01-0063-04 |
| 收稿时间： | 2005-11-20 |
| 修稿时间： | 2005-11-20 |
Isomerization of cis-and trans-4,6-diaryl-4,6,7,8-tetrahydro [1,4] oxazepino [4,3-c] sydnone |
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| ZHANG Zhan-bin,AI Lin. Isomerization of cis-and trans-4,6-diaryl-4,6,7,8-tetrahydro [1,4] oxazepino [4,3-c] sydnone[J]. Journal of Northeast Normal University (Natural Science Edition), 2006, 38(1): 63-66 |
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| Authors: | ZHANG Zhan-bin AI Lin |
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| Affiliation: | Faculty of Chemistry, Beijing Normal University,Beijing 100875, China |
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| Abstract: | Both cis-and trans-4,6-diaryl-4,6,7,8-tetrahydro[1,4] oxazepino[4,3-c]sydnones prepared from the reaction of 3-(3-phenyl-3-hydroxylpropyl)sydnone and aromatic aldehydes are stable isomers and can be isolated and purified by chromatography commonly.In the presence of protonic acid,cis-or trans-isomer can be isomerized to a mixture of cis-and trans-isomer.The chemical shift of(H-4) of cis-isomer is smaller than that of trans-isomer.The ratio of cis-and trans-isomer can be measured by ~1H NMR. |
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| Keywords: | oxazepino[4 3-c]sydnone cis-and transisomer aromatic aldehyde isomerization |
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