The olefins which are vicinally substituted by amino and phenylthio groups showed the reactivity as an enamine in the reactions with heterocumulenes and in cycloadditions with a 1,3-dipole and a 2-propenimine, giving a pyrazole derivative and a pyridine derivative, respectively.
“Alkene-to-Alkene” Difunctionalization of Enaminones for the Synthesis of Polyfunctionalized Alkenes by Transition-Metal-Free C–H and C–N Bond Transformation
作者:Jingfeng Ye、Yunyun Liu、Jin Luo、Jie-Ping Wan
DOI:10.1021/acs.orglett.3c03353
日期:2023.12.1
The three-component reactions of enaminones, disulfides, and alcohols for the synthesis of polyfunctionalized alkenes have been realized via the C–H and C–N bond transformation on enaminones. The reactions proceed in a novel “alkene-to-alkene” difunctionalization mode without using any transition metal. The application of the alkene products in the synthesis of divergent sulfenyl heteroaryls, including