Abstractmagnified imageThe ruthenium‐catalysed enyne cross‐metathesis of several alkyne derivatives with terminal olefins was performed. These reactions were efficiently achieved under mild conditions in dimethyl carbonate, an eco‐friendly solvent. A unique one‐pot reaction based on an ethenolysis step followed by an enyne cross‐metathesis allowed the efficient transformation of renewable unsaturated fatty esters into valuable conjugated 1,3‐dienes of interest for further transformations.
Improving Sustainability in Ene-Yne Cross-Metathesis for Transformation of Unsaturated Fatty Esters
作者:Virginie Le Ravalec、Antoine Dupé、Cédric Fischmeister、Christian Bruneau
DOI:10.1002/cssc.201000212
日期:2010.11.22
ene–yne cross‐metathesis is performed with stoichiometric proportions of terminal olefins and alkynes. This is made possible by the continuous addition of the alkyne to the reaction mixture. The protocol allows the ene–yne cross‐metathesis reaction to be carried out with long‐chain terminal olefins and in a one‐pot fashion with internal olefins after shortening by ethenolysis. The efficient conversion