Tanaka S, Nakamura T, Yorimitsu H, Shinokubo H, Oshima K
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan.
Org Lett. 2000 Jun 29;2(13):1911-1914. doi: 10.1021/ol005977n.
Tri-2-furanylgermane in the presence of a catalytic amount of Et(3)B adds to internal alkenes as well as terminal alkenes effectively to give the corresponding adducts in good to excellent yields. The addition of tri-2-furanylgermane to silyl enol ethers followed by elimination of germyl and siloxy moieties provides a new route for the conversion of ketones into alkenes.
在催化量的三乙基硼存在下,三 - 2 - 呋喃基锗烷能有效地加成到内烯烃以及末端烯烃上,以良好至优异的产率得到相应的加合物。三 - 2 - 呋喃基锗烷加成到硅基烯醇醚上,随后消除锗基和硅氧基部分,为将酮转化为烯烃提供了一条新途径。