Highly regioselective Friedel–Crafts alkylation of indoles with α,β-unsaturated N-acylbenzotriazoles
作者:Xuefei Zou、Xiaoxia Wang、Cungui Cheng、Lichun Kong、Hui Mao
DOI:10.1016/j.tetlet.2006.03.110
日期:2006.5
Friedel–Crafts alkylation rather than acylation of indoles was realized with α,β-unsaturated acylbenzotriazoles catalyzed by samarium(III) iodide under reflux in anhydrous THF. The reaction was highly regioselective, and a series of new 3-substituted indole derivatives were obtained in moderate to good yields with the potential to be further transformed into various indole derivatives due to the presence