Allene formation by the reaction of olefins with propargyl silyl ethers mediated by a zirconocene complex

Autor: Takahashi, Tamotsu, Hara, Ryuichiro, Huo, Shouquan, Ura, Yasuyuki, Leese, Mathew P., Suzuki, Noriyuki
Zdroj: Tetrahedron Letters; January 1997, Vol. 38 Issue: 50 p8723-8726, 4p
Abstrakt: Ethylene and styrene derivatives reacted with various propargylic ethers in the presence of zirconocene(II) to afford allenic products in high yields. The reaction proceeded viaformation of zirconacyclopentenes by selective coupling of an olefin and a propargylic ether, which was followed by β-elimination of the siloxy group. Deuterolysis confirmed that the final product had a zirconium-carbon bond.
Databáze: Supplemental Index