Superacid-catalyzed Friedel–Crafts cyclization of unactivated alkenes
摘要:
Trifluoromethanesulfonimide is an effective catalyst for Friedel-Crafts cyclizations of simple, nonpolarized alkenes with a variety of pendant arenes. A catalyst loading of 0.5 - 1.0 mol % effects clean cyclization to form 5- to 7-membered carbocycles with generally short reaction times and good to excellent yields under reflux or microwave heating. (C) 2012 Elsevier Ltd. All rights reserved.
Superacid-catalyzed Friedel–Crafts cyclization of unactivated alkenes
作者:Sara A. Bonderoff、F.G. West、Martin Tremblay
DOI:10.1016/j.tetlet.2012.06.082
日期:2012.8
Trifluoromethanesulfonimide is an effective catalyst for Friedel-Crafts cyclizations of simple, nonpolarized alkenes with a variety of pendant arenes. A catalyst loading of 0.5 - 1.0 mol % effects clean cyclization to form 5- to 7-membered carbocycles with generally short reaction times and good to excellent yields under reflux or microwave heating. (C) 2012 Elsevier Ltd. All rights reserved.