Selective Synthesis of (2Z,4E)-Dienyl Esters by Ene-Diene Cross Metathesis
Gustavo Moura-Letts and Dennis P. Curran*
*Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, Email: curranpitt.edu
G. Moura-Letts, D. P. Curran, Org. Lett., 2007, 9, 5-8.
Cross metathesis of terminal alkenes with methyl (2Z,4E)-hexadienoate and related dienyl esters promoted by the standard second-generation Grubbs-Hoveyda catalyst provides substituted (2Z,4E)-dienyl esters in good yields. A fluorous catalyst is used for separation and recovery in gram-scale reactions.
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