Sulfonium Salts Enable the Direct Sulfenylation of Activated C(
<i>sp</i>
<sup>
<i>3</i>
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)−H Bonds
作者:Liang Zhang、Sakkani Nagaraju、Banoth Paplal、Yunliang Lin、Shuhua Liu
DOI:10.1002/ejoc.202001569
日期:2021.3.5
The direct alkylsulfenylation of various activated C−H bonds has been reported. The reaction utilizes sulfonium salts as sulfenylation reagents which are readily prepared, operationally simple, and performe under mild reaction conditions.
Ethyl 2-acetylalkanoate gave ethyl2-(methyl- or phenylthio)alkanoate in high yield on treatment wiht CH3SSO2CH3, PhSSO2Ph, or PhSSPh in the presence of small excess of EtONa in EtOH. Application of the present method to synthesis of pellitorine and the queen substance is also described.