1.
Org Lett
; 7(23): 5289-91, 2005 Nov 10.
Artículo
en Inglés
| MEDLINE
| ID: mdl-16268560
RESUMEN
[reaction: see text] A new and novel Au-catalyzed cycloisomerization of ynals bearing a pendant unsaturated bond leading to synthetically valuable [6.7.n]-tricyclic compounds were developed. This study strongly supports the intermediacy of [3 + 2] cycloaddition proposed by DFT calculation and provides an easy access to key skeletons found in a variety of natural products.