Synthesis of spiroindolenine derivatives by a tandem radical-oxidation process
作者:Holber Zuleta-Prada、Luis D. Miranda
DOI:10.1016/j.tetlet.2009.07.037
日期:2009.9
In the present work, a novel stereoselective radicalcyclization/oxidation/spirocyclization cascade process using a mixture of n-Bu3SnH/ dilauroyl peroxide is described. The proposed mechanism for this later process combines a 6-endo cyclization of an aryl radical onto an enamide double bond, and a consecutive oxidative-ionic spirocyclization at C-3 of an indole nucleus. All processes led to the construction