Synthesis of Pyridine Derivatives in Organic Chemistry

Pyridine and its substituted derivatives represent a cornerstone of modern organic synthesis, owing to their prevalence in pharmaceuticals, agrochemicals and functional materials. Traditional approaches to pyridine construction include classical multicomponent condensations, such as the Hantzsch dihydropyridine synthesis, and ring-forming strategies exemplified by the Bohlmann–Rahtz and Chichibabin protocols. Contemporary advances have broadened this toolkit through transition-metal-catalysed cross-coupling reactions, cyclisation of prefunctionalised precursors and direct C–H activation methods that obviate preinstalled functional groups. Ring-closing metathesis and cascade cyclisations offer streamlined access to polysubstituted cores, while one-pot and flow processes enhance efficiency and sustainability. Green chemistry principles have driven the adoption of metal-free catalysis, recyclable heterogeneous systems and solvent-minimising techniques. Collectively, these innovations enable rapid assembly of complex substitution patterns, facilitate late-stage diversification and support structure–activity studies in drug discovery and agrochemical development. Continuous-flow adaptations and computational design further integrate process intensification with predictive reaction planning, underscoring the global importance of pyridine scaffolds for next-generation applications.

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Synthesis of Pyridine Derivatives in Organic Chemistry publication trend

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

Technical terms

Heterocycle: A ring structure containing at least one atom other than carbon, such as nitrogen, in its backbone.

Multicomponent reaction: A process in which three or more reactants combine in a single operation to form a product incorporating substantial portions of all inputs.

Cross-coupling: A method for forming carbon–carbon bonds by joining two molecular fragments, typically under transition-metal catalysis.

Cyclisation: A chemical transformation that forms a ring by connecting different parts of a linear or branched precursor.

C–H activation: A strategy for directly functionalising carbon–hydrogen bonds without prior introduction of a reactive handle.

Ring-closing metathesis: A catalytic olefin metathesis reaction that forms a cyclic alkene from two terminal alkenes via redistribution of alkylidene fragments.

References

1. Green Synthesis of Aromatic Nitrogen-Containing Heterocycles by Catalytic and Non-Traditional Activation Methods. Molecules (2023).
2. De Novo Synthesis of Polysubstituted 3-Hydroxypyridines Via “Anti-Wacker”-Type Cyclization †. Catalysts (2023).
3. Recent Advances in Pyridine Scaffold: Focus on Chemistry, Synthesis, and Antibacterial Activities. BioMed Research International (2023).