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.