Transition-Metal-Catalyzed Allylic Substitution and Titanocene-Catalyzed Epoxypolyene Cyclization as a Powerful Tool for the Preparation of Terpenoids
作者:Andreas Gansäuer、José Justicia、Antonio Rosales、Dennis Worgull、Björn Rinker、Juan Manuel Cuerva、Juan Enrique Oltra
DOI:10.1002/ejoc.200600389
日期:2006.9
active substances are composed of sesquiterpene units linked to aromatic structures, especially substituted phenols. Here, we describe an efficient synthetic approach to this class of natural product from commercially available substances in a short sequence. The key transformations involve allylicsubstitution reactions using a palla