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Regio- and Enantioselective Cobalt-Catalyzed Reductive [3+2] Cycloaddition Reaction of Alkynes with Cyclic Enones: A Route to Bicyclic Tertiary Alcohols


  • We thank the National Science Council of the Republic of China (NSC 98-2119-M-007-002-MY3) for support.


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Round and round: An unusual cobalt-catalyzed regio- and enantioselective reductive [3+2] cycloaddition of cyclic enones with alkynes affording bicyclic tertiary alcohols is described. A possible mechanism involving the formation of a cobaltacyclopentene intermediate is proposed.

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