1.
Org Lett
; 9(24): 5111-4, 2007 Nov 22.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17973487
RESUMO
A novel and general copper/silver catalytic system has been developed for the Conia-ene intramolecular reaction of linear beta-alkynic beta-ketoesters. In the presence of (CuOTf)2.C6H6 and AgSbF6 (or AgOAc), a variety of the linear beta-alkynic beta-ketoesters selectively underwent the Conia-ene intramolecular reaction in moderate to good yields.