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Enantioselective Syntheses of Flavonoid Diels-Alder Natural Products: A Review

[ Vol. 15 , Issue. 2 ]


Shah Bakhtiar Nasir, Noorsaadah Abd Rahman and Chin Fei Chee*   Pages 221 - 229 ( 9 )


Background: The Diels-Alder reaction has been widely utilised in the syntheses of biologically important natural products over the years and continues to greatly impact modern synthetic methodology. Recent discovery of chiral organocatalysts, auxiliaries and ligands in organic synthesis has paved the way for their application in Diels-Alder chemistry with the goal to improve efficiency as well as stereochemistry.

Objective: The review focuses on asymmetric syntheses of flavonoid Diels-Alder natural products that utilize chiral ligand-Lewis acid complexes through various illustrative examples.

Conclusion: It is clear from the review that a significant amount of research has been done investigating various types of catalysts and chiral ligand-Lewis acid complexes for the enantioselective synthesis of flavonoid Diels-Alder natural products. The results have demonstrated improved yield and enantioselectivity. Much emphasis has been placed on the synthesis but important mechanistic work aimed at understanding the enantioselectivity has also been discussed.


Biomimetic, flavonoid, Diels-Alder, cycloaddition, enantioselective, natural products, asymmetric, synthesis.


Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Nanotechnology & Catalysis Research Centre, University of Malaya, 50603 Kuala Lumpur

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