作者:Gedu Satyanarayana、Martin E. Maier
DOI:10.1016/j.tet.2011.12.060
日期:2012.2
A series of 4-formyl esters 8a–d was prepared by Michael addition of an enamine with ethyl acrylate. A subsequent condensation with 2-bromobenzylamines 3 gave rise to cyclic enamides 9aa–dd. In a Heck cyclization reaction tricyclic isoindoles 10aa–dd were formed in good yields.
通过将烯胺与丙烯酸乙酯进行迈克尔加成反应,制备了一系列的4-甲酸酯8a – d。随后与2-溴苄胺3缩合,生成环状酰胺9aa – dd。在Heck环化反应中,三环异吲哚10aa – dd以良好的收率形成。