作者:Chang Ho Oh、Seung Hyun Jung、Chul Yun Rhim
DOI:10.1016/s0040-4039(01)01896-2
日期:2001.12
Allenynes exhibited different modes of cyclizations depending on metallic catalysts. Palladium compounds would catalyze 1,7-allenynes to the corresponding six-membered carbocycles incorporating a hydrogen or an acetate group depending upon additives used. A rhodium compound catalyzed the cyclization of those allenynes to give the five membered rings chemoselectively. (C) 2001 Elsevier Science Ltd. All rights reserved.