Cp2ZrCl2-Catalyzed cycloalumination of acetylenic alcohols and propargylamines by Et3Al

被引：0
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作者：
I. R. Ramazanov
R. N. Kadikova
U. M. Dzhemilev
机构：
[1] Russian Academy of Sciences,Institute of Petrochemistry and Catalysis
来源：
Russian Chemical Bulletin | 2011年 / 60卷
关键词：
organoaluminum compounds; alumacyclopentenes; cycloalumination; cyclic carboalumination;
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学科分类号：
摘要：
The Cp2ZrCl2-catalyzed cycloalumination of acetylenic alcohols and propargylamines by Et3Al was studied. The process affords 2,3-disubstituted alumacyclopent-2-enes, which were identified by the analysis of the products of their deuterolysis and hydrolysis. The cycloalumination of alkyl- and phenyl-substituted propargylamines proceeds with high regio- and stereoselectivity to give the corresponding allylamine derivatives in high yield. Unlike the phenyl derivatives, the cycloalumination of alkyl-substituted acetylenic alcohols (propargyl, homopropargyl, and bishomopropargyl alcohols) is not regioselective.
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页码：99 / 106
页数：7
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