The thermodynamic enolate contains the more substituted alkene.

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The thermodynamic enolate is formed under conditions of high temperature and/or prolonged reaction time, allowing for equilibration between the kinetic and thermodynamic enolates. The thermodynamic enolate is more stable and contains the more substituted alkene due to the greater number of alkyl groups attached to the double bond, which results in more electron density and less strain.

The Thermodynamic Enolate Contains the More Substituted Alkene