Vinylic tellurides as precursors in a stereoselective and convergent route to Z-enynes and Z-trisubstituted enediynes

Vinylic tellurides of Z configuration are transformed into higher order Z-vinyl cyanocuprates by transmetallation with higher order lithium dimethyl- or n-butyl(thienyl)cyanocuprates. Reaction of the obtained Z-vinyl cyanocuprates with zinc chloride gives presumably mixed zinc-copper species which react with bromoalkynes leading to enynes and enediynes with retention of the Z double bond configuration.

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Bibliographic Details
Main Authors: Araujo,Marcelo A. de, Raminelli,Cristiano, Comasseto,João V.
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Química 2004
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000300004
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