Questions: Which is the thermodynamic enolate of 2-methylcyclohexanone? I II III IV Multiple Choice IV

Which is the thermodynamic enolate of 2-methylcyclohexanone? I II III IV Multiple Choice IV
Transcript text: Which is the thermodynamic enolate of 2-methylcyclohexanone? I II III IV Multiple Choice IV
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Solution

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Solution Steps

Step 1: Identify the alpha carbons

The alpha carbons are the carbon atoms adjacent to the carbonyl group (C=O). In 2-methylcyclohexanone, there are two alpha carbons: one bearing the methyl group, and the other on the other side of the carbonyl group.

Step 2: Determine the possible enolates

An enolate is formed by deprotonation of an alpha carbon, forming a double bond between the alpha carbon and the carbonyl carbon. The thermodynamic enolate is the more substituted, more stable enolate. In this case, the more substituted enolate is the one with the double bond formed between the more substituted alpha carbon (the one bearing the methyl group) and the carbonyl carbon.

Step 3: Identify the correct structure

Structure I corresponds to the enolate formed by deprotonation at the less substituted alpha carbon. Structure II corresponds to the enolate formed by deprotonation at the more substituted alpha carbon (the one with the methyl group). This is the thermodynamic enolate. Structures III and IV are not enolates.

Final Answer

\\(\boxed{\text{II}}\\)

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