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学科主题: 金属有机化学
题名: Titanium(IV) chloride and oxy-compounds promoted baylis-hillman reaction
其他题名: 四氯化钛和含氧化合物促进的Baylis-Hillman 反应
作者: Shi M(施敏) ; Jiang JK(蒋建康) ; Cui SC(崔世聪)
通讯作者: 施敏
刊名: Tetrahedron
发表日期: 2001
卷: 57, 期:34, 页:7343-7347
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所金属有机化学开放实验室
英文摘要: the baylis-Hillman reaction of aryl aldehydes with α, β -unsaturated ketones in the presence of titanium (IV) chloride can be promoted by oxy-compounds at room temperature, although they are not as effective as amines, chalocogenides, or quatermary ammonium salts. The oxy-compounds can be simple alcohols, ethers, and ketones. For arylaldehydes having a strong electron-withdrawing group on the phenyl ring such as nitrobenzaldehyde or p-trifluoromethylbenzaldehyde, the chlorinated compound 1 is obtained as the major product. However, for other aryl aldehydes, the elimination compound 3 was formed predominantly. We also found the TiCl^4.2THF of TiCl^42Et^2O complex is very effective for this reaction to give the chlorinated products in high yields at low temperature. A plausible mechanism is proposed.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000170631600011
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/9748
Appears in Collections:金属有机化学国家重点实验室_期刊论文

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Recommended Citation:
Shi M,Jiang JK,Cui SC. Titanium(IV) chloride and oxy-compounds promoted baylis-hillman reaction[J]. Tetrahedron,2001,57(34):7343-7347.
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