Synthesis of chromeno[2,3-c]pyrrol-9(2H)-ones by domino Michael-Claisen-SNAr reactions of amino acid esters with 2-chlorophenylpropynones
作者:Tuan Anh Nguyen Tien、Mariia Miliutina、Jan Radolko、Richard Thom、Tuan T. Dang、Peter Ehlers、Peter Langer
DOI:10.1016/j.tet.2021.132608
日期:2022.1
The domino reaction of amino acid esters with 2-chlorophenylpropynones, readily available by Sonogashira reactions of 2-chlorobenzoylacetylenes, afforded novel chromeno[2,3-c]pyrrol-9(2H)-ones. The domino reaction involves three steps, i.e. Michael, Claisen and SNAr reactions. Intermediates could be isolated in some cases which allowed to get some insight in the mechanism.
氨基酸酯与 2-氯苯基丙炔酮的多米诺反应,很容易通过 2-氯苯甲酰基乙炔的 Sonogashira 反应获得,提供了新的 chromeno[2,3 - c ]pyrrol-9( 2H )-ones。多米诺反应包括三个步骤,即迈克尔,克莱森和S Ñ的Ar反应。在某些情况下可以隔离中间体,从而可以深入了解该机制。