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the claim

Carbonyl-enol tautomerization can occur intramolecularly

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Carbonyl-enol tautomerization frequently proceeds via intramolecular proton transfer mechanisms, such as through intramolecular hydrogen bonding and excited-state intramolecular proton transfer (ESIPT).

The analysis

The retrieved papers consistently provide theoretical and experimental evidence showing that keto-enol and related tautomerization processes can and do occur intramolecularly via proton transfer mechanisms, often facilitated by internal hydrogen bonding or conformational geometries.

Evidence for · 5
Solvent effects on glycine. I. A supermolecule modeling of tautomerization via intramolecular proton transfer
Recorded source metadata

Bülent Balta, Viktorya Aviyente. Solvent effects on glycine. I. A supermolecule modeling of tautomerization via intramolecular proton transfer. 2003. https://doi.org/10.1002/jcc.10341

Investigates glycine tautomerization via intramolecular proton transfer.

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More for · 4
Solvent effects on glycine II. Water‐assisted tautomerization
Recorded source metadata

Bülent Balta, Viktorya Aviyente. Solvent effects on glycine II. Water‐assisted tautomerization. 2004. https://doi.org/10.1002/jcc.10422

Compares intramolecular proton transfer channels with water-assisted tautomerization pathways in glycine.

Regulating enol-keto tautomerism at the single-molecule level with a confined optical field.
Recorded source metadata

Adijiang A, Ge Y, Feng H, Yan Y, Zuo X, Wang H, Zhao X, Tan M, Zhang S, Xu X, Chen L, Wang C, Li Z, Xiang D. Regulating enol-keto tautomerism at the single-molecule level with a confined optical field.. 2025. https://doi.org/10.1039/d5sc06085k

Discusses beta-diketones existing dominantly in the enol form stabilized by intramolecular hydrogen bonds.

Internally Catalyzed Hydrogen Atom Transfer (<i>I-CHAT</i>)-A New Class of Reactions in Combustion Chemistry.
Recorded source metadata

Asatryan R, Hudzik J, Amiri V, Swihart MT. Internally Catalyzed Hydrogen Atom Transfer (<i>I-CHAT</i>)-A New Class of Reactions in Combustion Chemistry.. 2025. https://doi.org/10.3390/molecules30030524

Identifies an intramolecular catalytic hydrogen transfer mechanism leading to enol-hydroperoxide tautomers.

Insights into tautomerism and pH effects on the photoluminescence of citric acid-derived molecular fluorophores.
Recorded source metadata

Estévez L, Otero N. Insights into tautomerism and pH effects on the photoluminescence of citric acid-derived molecular fluorophores.. 2026. https://doi.org/10.1039/d6ra00206d

Examines excited-state intramolecular proton transfer (ESIPT) processes in molecular fluorophores.

The paper trail · every fact has a biography
first checked01 Aug 2026
judged → SUPPORTED · 8601 Aug 2026
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