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  • Title: Pd/Cu-catalyzed cascade Sonogashira coupling/cyclization reactions to highly substituted 3-formyl furans.
    Author: Yang J, Wang C, Xie X, Li H, Li E, Li Y.
    Journal: Org Biomol Chem; 2011 Mar 07; 9(5):1342-6. PubMed ID: 21225082.
    Abstract:
    An efficient palladium/copper-catalyzed approach to the synthesis of highly substituted 3-formyl furans from the reactions of readily available α-bromoenaminones with terminal alkynes has been developed. This methodology was realized by the cascade reactions of Sonogashira coupling and the subsequent intramolecular cyclization.
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