An Improved Method for the Synthesis of Carbazolones by Palladium/Copper-Catalyzed Intramolecular Annulation of N-Arylenaminones
作者:Jing-Hua Li、Bojie Weng、Rui Liu
DOI:10.1055/s-0030-1258141
日期:2010.9
via the condensation of arylamines with 1,3-cyclodiketones followed by intramolecular oxidative cyclization catalyzed by palladium acetate and copper acetate in ethanol under an oxygen atmosphere was established. The improved method has the advantage of easily available starting materials and affords good yields. carbazolones - intramolecular oxidative cyclization - oxygen - palladium acetate - copper
建立了一种改进的合成方法,该方法通过芳基胺与1,3-环二酮的缩合,然后在氧气气氛下由乙酸钯和乙酸铜在乙醇中催化,进行分子内氧化环化反应来合成咔唑酮。改进的方法的优点是容易获得起始原料并提供良好的产率。 卡巴唑酮-分子内氧化环化-氧气-乙酸钯-乙酸铜