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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Main Authors: | , , |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Química
2004
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000300004 |
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