obtained in good yields from pentynoic acids 3- or 5-substituted with an iodo-aryl moiety by palladium-catalyzed cyclization of their potassium carboxylates. Using this approach, an efficient newroute to U-68,215 is described.
Palladium-mediated intramolecular cyclization of substituted pentynoic acids. A new route to γ-arylidenebutyrolactones
作者:M. Cavicchioli、D. Bouyssi、J. Goré、G. Balme
DOI:10.1016/0040-4039(96)00063-9
日期:1996.2
Benzo-annulated enol lactones are obtained in good yields from pentyonic acids 3- or 5- substituted with an iodo-aryl moiety by palladium-catalyzed cyclization of their potassium carboxylates.