Novel 1,3-Diene Synthesis from Alkyne and Ethylene by Ruthenium-Catalyzed Enyne Metathesis

摘要

The results indicate that the novel synthetic method of 1, 3- diene from alkyne and ethylene could be developed using ruthenium-catalyzed enyne metathesis. The remarkable char- acteristic for this procedure is that the synthetic procedure is very simple, namely, the CH_2Cl_2 solution of alkyne was stirred at room temperature under ethylene gas (1 atm) in the presence of a catalytic amount of ruthenium benzylidene catalyst (3-10 mol/100).