Cp2ZrCl2-Catalyzed cycloalumination of acetylenic alcohols and propargylamines by Et3Al
Autor: | Ilfir Ramazanov, Lilya Dzhemileva, Rita Kadikova, Usein Dzhemilev |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Russian Chemical Bulletin. 60:99-106 |
ISSN: | 1573-9171 1066-5285 |
DOI: | 10.1007/s11172-011-0013-2 |
Popis: | 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. |
Databáze: | OpenAIRE |
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