Zirconium-mediated coupling reactions of amines and enol or allyl ethers: synthesis of allyl- and homoallylamines |
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Authors: | Barluenga José Rodríguez Félix Alvarez-Rodrigo Lucía Zapico José M Fañanás Francisco J |
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Institution: | Instituto Universitario de Química Organometálica Enrique Moles, Unidad Asociada al CSIC, Universidad de Oviedo, Julián Clavería 8, 33006 Oviedo, Spain. barluenga@sauron.quimica.uniovi.es |
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Abstract: | An easy and efficient zirconium-mediated synthesis of allylamines from simple amines and enol ethers is described. This strategy also allows the synthesis of amino alcohol derivatives containing a Z double bond in their structure when 2,3-dihydrofuran is used. Simple conventional modification of these amino alcohols leads to 2-substituted piperidine derivatives. By applying this approach, a formal total synthesis of the alkaloid coniine is easily achieved from a protected butylamine. Finally, the zirconium-mediated reaction of amines and allyl phenyl ether furnishes homoallylamines or amino ethers depending on the structure of the starting amine. |
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Keywords: | allylamines C?C coupling coniine zirconium |
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