Efficient Olefin Isomerization-Ring-Closing Metathesis Reaction in Sterically Hindered Systems: Study on Simultaneous Use of the Grubbs Metathesis and Ruthenium Hydride Isomerization Catalysts

Efficient double bond isomerization-ring-closing metathesis reaction is observed when sterically congested 1,9-dienes are treated with Grubbs ruthenium catalysts: simultaneous use of Grubbs catalyst and RuCIH(CO)(PPh3)3 facilitate isomerizationmetathesis reactions.