Palladium-catalyzed synthesis of carbazoles from N-(2-halophenyl)-2,6-diisopropylanilines via C–C cleavage
作者:Anthony R. Chianese、Scott L. Rogers、Hanna Al-Gattas
DOI:10.1016/j.tetlet.2010.02.098
日期:2010.4
The synthesis of 1-isopropyl-substituted carbazoles by the palladium-catalyzed dealkylative cyclization of N-(2-halophenyl)-2,6-diisopropylanilines is described. The reaction involves intramolecular C–C bond formation, coupled with the cleavage of a C–X bond and a C–C bond, and is proposed to proceed through the formation of a dearomatized intermediate.
描述了通过N-(2-卤代苯基)-2,6-二异丙基苯胺的钯催化的脱烷基环化来合成1-异丙基取代的咔唑。该反应涉及分子内C–C键的形成,以及C–X键和C–C键的断裂,并建议通过脱芳构中间体的形成进行。