What does this research mean for the field?

Functionalized pyridoquinazolinones can be efficiently synthesized in good yields through a one-pot, Pd-catalyzed cascade process involving double C–N bond formation and intramolecular 1,6-conjugate addition. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop a practical one-pot cascade annulation reaction for synthesizing diverse pyridoquinazolinone derivatives from 2-bromo-p-quinone methides and 2-aminopyridines.

September 5, 2026The Journal of Organic Chemistry

Cascade Synthesis of Pyridoquinazolinones: A Pd-Catalyzed Double C–N Bond Formation Strategy via Intramolecular 1,6-Conjugate Addition

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Authors

PSPriyanka Saikia PGPranjal Gogoi

Discussion

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Overview

Synthetic study demonstrates efficient one-pot synthesis of pyridoquinazolinones via palladium catalysis, highlighting step economy and open-air conditions.

Key Points

To develop a practical one-pot cascade annulation reaction for synthesizing diverse pyridoquinazolinone derivatives from 2-bromo-p-quinone methides and 2-aminopyridines.
Coupled 2-bromo-p-quinone methides with 2-aminopyridines in an open-air reaction mixture.
Employed palladium catalysis to induce an initial intermolecular C–N coupling followed by an intramolecular 1,6-conjugate addition.
Generated a diverse series of functionalized pyridoquinazolinone products in good chemical yields.
Achieved high step economy and functional group tolerance across a broad substrate scope without requiring an inert atmosphere.

Cite This Study

Saikia et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4216b95aff0620eb815 https://doi.org/10.1021/acs.joc.6c01240

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September 5, 2026The Journal of Organic Chemistry

Cascade Synthesis of Pyridoquinazolinones: A Pd-Catalyzed Double C–N Bond Formation Strategy via Intramolecular 1,6-Conjugate Addition

View Full Paper

Ask AI

Bookmark

Authors

PSPriyanka Saikia PGPranjal Gogoi

Discussion

Member takes

Overview

Synthetic study demonstrates efficient one-pot synthesis of pyridoquinazolinones via palladium catalysis, highlighting step economy and open-air conditions.

Key Points

To develop a practical one-pot cascade annulation reaction for synthesizing diverse pyridoquinazolinone derivatives from 2-bromo-p-quinone methides and 2-aminopyridines.
Coupled 2-bromo-p-quinone methides with 2-aminopyridines in an open-air reaction mixture.
Employed palladium catalysis to induce an initial intermolecular C–N coupling followed by an intramolecular 1,6-conjugate addition.
Generated a diverse series of functionalized pyridoquinazolinone products in good chemical yields.
Achieved high step economy and functional group tolerance across a broad substrate scope without requiring an inert atmosphere.

Cite This Study

Saikia et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4216b95aff0620eb815 https://doi.org/10.1021/acs.joc.6c01240

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