Palladium-catalysed Cyclisation and Cyclisation–Carbonylation of Unsaturated C-Glycoside Derivatives. The Importance of Relative Stereochemistry

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Cedric W. Holzapfel and Lizel Marais


Abstract

The Pd-catalysed `metallo-ene type' cyclisation and cyclisation–carbonylation of selected 2,3-unsaturated C-glycosides is described and attention is drawn to the importance of relative stereochemistry in the latter type of reactions.


References

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  5. The acetic acid is thought to promote the reaction by protonation of the acetate ligand, thereby facilitating the formation of a cationic (η3-allyl)palladium complex, a key intermediate in these reactions: E. Gómez-Bengoa, J. M. Cuerva, A. M. Echavarren and G. Martorell, Angew. Chem., Int. Ed. Engl., 1997, 36, 767 Search PubMed.
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