Nucleophilic substitution of tetracarbonyliron complexes of γ-acetoxycrotonates: The homologous Michael reaction
作者:J.R. Green、M.K. Carroll
DOI:10.1016/s0040-4039(00)92028-8
日期:1991.2
Iron tetracarbonyl complexes of γ-acetoxy-α,β-unsaturated esters react with silyl enol ethers in the presence of boron trifluoride-etherate to give substitution in the γ-position. The results are interpreted as being indicative of the intermediacy of a tetracarbonyliron-allyl cation complex which reacts at the terminus remote from the ester function.
γ-乙酰氧基-α,β-不饱和酯的四羰基铁配合物在三氟化硼-醚化物的存在下与甲硅烷基烯醇醚反应,在γ-位取代。结果被解释为表明四羰基铁-烯丙基阳离子络合物的中间体,该络合物在远离酯官能团的末端反应。