Ethylene-Promoted Intermolecular Enyne Metathesis
journal contributionposted on 20.09.2003, 00:00 by Anthony J. Giessert, Nicholas J. Brazis, Steven T. Diver
Intermolecular enyne metathesis between functional group-rich alkynes and vinyl ethers was promoted by ethylene cometathesis. The concentration of ethylene was optimized to suppress the competing formation of butadiene through background ethylene metathesis. The role of ethylene appears to be both protective and rate enhancing.