Rhodium-Catalyzed Asymmetric Addition of Arylboronic Acids to Indolylnitroalkenes
作者:Junwei Xing、Guihua Chen、Peng Cao、Jian Liao
DOI:10.1002/ejoc.201101648
日期:2012.2
bioactive structures. Most approaches to access chiral indolylnitroethanes involve organocatalyzed or metal-catalyzed asymmetric FriedelCrafts reaction of indoles with nitroalkenes. We have developed an efficient approach to optically pure a-aryl-3-indolylnitroethanes through rhodium-catalyzed asymmetric 1,4-addition of arylboronicacids to indolylnitroalkenes. Excellent yields (up to 99?%) and enantiomeric