Synthesis of Benzofuran and Indole Derivatives Catalyzed by Palladium on Carbon
作者:Anatoli Savvidou、Dimitrios IoannisTzaras、Giorgos S. Koutoulogenis、Alexis Theodorou、Christoforos G. Kokotos
DOI:10.1002/ejoc.201900577
日期:2019.6.30
A cheap, easy‐to‐execute and sustainable synthetic methodology for the synthesis of indoles and benzofurans was developed utilizing Pd/C as the promoter. A great variety of substituted ortho‐allyl anilines or phenols were utilized, leading to products in moderate yields. Recycling of the catalyst up to five times has been achieved.
A Cu(OAc)(2)-promoted cascade carboamination/oxidative cyclization of alkenes with alpha-imino esters has been explored. This transformation provides a concise approach to rapid assembly of 2-oxo-3-iminopyrrole derivatives in moderate to good yields.