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Mo(CO)6- and [Rh(CO)2Cl]2-Catalyzed Allenic Cyclocarbonylation Reactions of Alkynones:  Efficient Access to Bicyclic Dienediones

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journal contribution
posted on 06.03.2008, 00:00 by Kay M. Brummond, Daitao Chen
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)2Cl]2-catalyzed reaction affords bicyclo[4.3.0]nonenone and bicyclo[5.3.0]decenone scaffolds.