Mo(CO)6- and [Rh(CO)2Cl]2-Catalyzed Allenic Cyclocarbonylation Reactions of Alkynones: Efficient Access to Bicyclic Dienediones
摘要:
Allenyl alkynones are efficiently transformed into fused bicyclic dienediones via cyclocarbonylation reaction conditions. Mo(CO)(6)/DMSO reaction conditions result in the formation of a bicyclo[3.3.0]octenone ring system, and the [Rh(CO)(2)Cl](2)-catalyzed reaction affords bicyclo[4.3.0]-nonenone and bicyclo[5.3.0]decenone scaffolds.