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