One-pot dialkylation of allylphenylsulfide induced by aminoalkoxides-activated NaNH2. Application to the synthesis of unsymmetrical ketones
作者:Sabine Choppin、Philippe Gros、Yves Fort
DOI:10.1016/s0040-4020(99)00481-0
日期:1999.7
aminoalkoxides, leading to new superbases, induced an efficient one-pot dialkylation of allylphenylsulfide. The regioselectivity of the reaction (α,α′ vs α,γ) was found as strongly dependent on the nature of the alkyl halide. As an application, α,γ dialkylated products were efficiently converted into the corresponding unsymmetrical ketones.
结果表明,氨基醇钠对NaNH 2的活化导致了新的超碱,从而诱导了烯丙基苯硫醚的有效一锅二烷基化。发现反应的区域选择性(α,α'对α,γ)强烈依赖于卤代烷的性质。作为应用,α,γ二烷基化产物被有效地转化为相应的不对称酮。