Enol content is higher in non-polar solvents

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 1 against

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

The weight of chemical evidence, including classical studies on tautomerism, demonstrates that non-polar solvents generally favor a higher enol content by destabilizing the more polar keto form, though specific computational models sometimes indicate complex environmental interactions depending on the molecule.

The analysis

Paper [0] explicitly states that the enol form is favored by a decrease in solvent polarity. Paper [10] examines enolization in non-polar solvents using lattice theory and confirms solvent-dependent equilibria. Paper [8] presents computational results suggesting polar solvents can assist tautomeric conversions via charge stabilization, but the predominant classical and experimental literature (such as [0]) supports the claim that non-polar solvents promote higher enol content.

Evidence for · 2

Tautomerism of Isoguanosine and Solvent-Induced Keto-Enol Equilibrium

Recorded source metadata

Jerzy Sepioł, Zygmunt Kazimierczuk, David Shugar. Tautomerism of Isoguanosine and Solvent-Induced Keto-Enol Equilibrium. 1976. https://doi.org/10.1515/znc-1976-7-803

Paper [0] demonstrates that tautomeric equilibria shift toward the enol form with a decrease in solvent polarity.

Source citation format

Evidence against · 1

Fabrication and evaluation of polylactic acid-curcumin containing carbon nanotubes (CNTs) wound dressing using electrospinning method with experimental and computational approaches.

Recorded source metadata

Faal M, Faal M, Ahmadi T, Dehgan F. Fabrication and evaluation of polylactic acid-curcumin containing carbon nanotubes (CNTs) wound dressing using electrospinning method with experimental and computational approaches.. 2025. https://doi.org/10.1038/s41598-025-98393-2

Paper [8] suggests via DFT calculations that tautomeric conversion can be favored in polar solvents due to the stabilization of charged species.

Source citation format

See more details

More for · 1

The Solvent Effect on the Equilibrium of a Chemical Reaction in a Non-electrolyte Solution: Application to the Keto-enol Tautomerism and Dimerization of Nitrogen Dioxide

Recorded source metadata

Satohiro Tanaka. The Solvent Effect on the Equilibrium of a Chemical Reaction in a Non-electrolyte Solution: Application to the Keto-enol Tautomerism and Dimerization of Nitrogen Dioxide. 1966. https://doi.org/10.1246/bcsj.39.84

Paper [10] applies lattice theory to the enolization of ethyl acetoacetate and validates linear relationships for enol content in non-polar solvents.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 6001 Aug 2026

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