What does this research mean for the field?

Formal meta-selective C–H acylation of pyridines can be achieved via the triplet state of oxazinopyridine intermediates. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to explore a methodology for meta-selective C–H acylation of pyridines using triplet state intermediates.

May 17, 2026Organic Chemistry Frontiers1 citations

Formal meta -Selective C–H Acylation of Pyridines via the Triplet State of Oxazinopyridine Intermediates

FGFan GaoRenmin University of China YBYajing BianRenmin University of China SHShiqing HuangRenmin University of China

Key Points

The study aims to explore a methodology for meta-selective C–H acylation of pyridines using triplet state intermediates.
Utilized oxazinopyridine intermediates to facilitate the acylation process.
Examined direct C–H functionalization mechanisms and their efficiencies.
Achieved successful meta-acylation of pyridines, showcasing potential for pharmaceutical applications.
Demonstrated significantly improved selectivity compared to traditional methods.

Abstract

Pyridines are privileged structural motifs in pharmaceuticals and bioactive molecules. The introduction of substituents or functional groups at the meta -position via direct C–H functionalization of pyridines remains a formidable challenge....

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