2,3'‐Bisindole Synthesis from o‐(2.2‐Dibromovinyl)aniline and o‐Ethynylaniline
Asian Journal of Organic Chemistry(2023)
Abstract
A Pd-catalyzed coupling reaction from o-alkynylanilines and o-(2,2-dibromovinyl)anilines for the synthesis of 2,3 '-bisindoles is developed. In which, o-ethynylaniline was used as 3-functionalized indole precursor and o-(2,2- dibromovinyl)aniline was used as 2-functionalized indole precursor. This protocol exhibits high efficiency, good functional group tolerance and scalability from easily accessible starting materials.
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Key words
synthesis
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