Comparison of the Kinetics of 1-Hexene Metathesis by Ruthenium Carbene Catalysts

摘要

A kinetic study of two ruthenium carbene catalysts,(PCy3)2Cl2Ru=CHPh 1 (Grubbs catalyst) and a new catalyst 1,3-bis(2,6-dimethylphenyl)4,5-dihydroimidazol-2-ylidene(PPh3) (Cl)2Ru=CHPh 3,were conducted in metathesis of 1-hexene. The kinetic behavior of these catalysts at 40,50,60 and 70℃ was compared. Complex 3 has the more active catalytic effect at temperatures 40-70℃.