Synthesis of Bioactive Benzofuran Derivatives

The synthesis of bioactive benzofuran derivatives has emerged as a dynamic field at the interface of organic chemistry and drug discovery, driven by the scaffold’s prevalence in natural products and its broad pharmacological profile. Modern approaches encompass metal-catalysed cross-couplings, intramolecular and intermolecular cyclisations, cascade reactions and green-assisted protocols, each enabling precise functionalisation at key positions on the benzofuran core. Molecular hybridisation strategies—such as the incorporation of piperazine, oxadiazole and spirocyclic motifs—have further expanded the chemical space available for tuning potency and selectivity. Advances in regioselectivity, yield optimisation and substrate scope have facilitated the scalable preparation of diverse libraries, while structure–activity relationship insights continue to guide the rational design of novel derivatives for anticancer, anti-inflammatory and antimicrobial applications.

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Synthesis of Bioactive Benzofuran Derivatives publication trend

The graph below shows the total number of articles in synthesis of bioactive benzofuran derivatives across all publications each year (not limited to Nature Index journals).

Technical terms

Benzofuran: A fused aromatic heterocycle comprising benzene and furan rings with diverse biological activities.

Cascade cyclization: A sequence of intramolecular reactions that form multiple bonds and rings in a single synthetic operation.

Structure–activity relationship: The study of how modifications in molecular structure influence biological function and potency.

NF-κB pathway: A signalling cascade that controls inflammation by regulating transcription of immune-related genes.

MAPK pathway: A mitogen-activated protein kinase cascade involved in cell growth, differentiation and stress responses.

References

1. Synthesis and Biological Studies of Benzo[b]furan Derivatives: A Review from 2011 to 2022. Pharmaceuticals (2023).
2. Natural source, bioactivity and synthesis of benzofuran derivatives. RSC Advances (2019).
3. Last Decade of Unconventional Methodologies for the Synthesis of Substituted Benzofurans. Molecules (2020).
4. Synthesis of Benzofuran Derivatives via a DMAP-Mediated Tandem Cyclization Reaction Involving ortho-Hydroxy α-Aminosulfones. Molecules (2024).
5. Discovery of New Heterocyclic/Benzofuran Hybrids as Potential Anti-Inflammatory Agents: Design, Synthesis, and Evaluation of the Inhibitory Activity of Their Related Inflammatory Factors Based on NF-κB and MAPK Signaling Pathways. International Journal of Molecular Sciences (2023).
6. Exploring the Synergistic Anticancer Potential of Benzofuran–Oxadiazoles and Triazoles: Improved Ultrasound- and Microwave-Assisted Synthesis, Molecular Docking, Hemolytic, Thrombolytic and Anticancer Evaluation of Furan-Based Molecules. Molecules (2022).
7. Structure–Activity Relationship of Benzofuran Derivatives with Potential Anticancer Activity. Cancers (2022).